International Cichorieae Network

Literature Archive: 2019 | 2020 | 2021 | 2022 | 2023

Not all members of the International Cichorieae Network do have access to botanical libraries. As a service we would like to point to recent publications regarding Cichorieae. However, some articles will escape our attention. Therefore, your hints to recent publications are always welcome. 

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Collected by Norbert Kilian (Berlin) & Robert Parsons (Melbourne)

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23 November 2023

Mailhos A. Bonifacino J. M. & Marchesi E. 2023: Revisión taxonómica de Hypochaeris (Compositae: Cichorieae) en Uruguay. – Darwiniana, ser. 2, 11: 643–704.

Abstract
"Se presenta la revisión taxonómica de Hypochaeris L. (Compositae: Cichorieae) para Uruguay. Se revisó material de los principales herbarios del país, se realizaron salidas de campo para estudiar a las especies “in situ” a lo largo del país, y se revisaron las publicaciones de referencia y el material original de cada especie. Se incluye un listado de las especies presentes en el país con sus respectivas sinonimias, descripciones ampliadas, mapas de distribución, datos de hábitat y fenología, observaciones, y láminas con imágenes e ilustraciones resaltando los caracteres morfológicos más relevantes de cada una. Adicionalmente se presentan claves dicotómicas y virtuales para la identificación de las secciones, series y especies del género presentes en Uruguay. El género Hypochaeris en Uruguay comprende 11 especies, dos exóticas (Hypochaeris secc. Hypochaeris), y nueve nativas del territorio (Hypochaeris secc. Phanoderis), dos de las cuales son consideradas prioritarias para la conservación en Uruguay. Se reinstaura el nombre H. rosengurttii como especie y se registra la especie H. pampasica por primera vez en el país, a la vez que se excluyen H. lutea y H. neopinnatifida. Se discuten las complejidades taxonómicas en torno al nombre H. microcephala, así como la ocurrencia de taxa híbridos dentro del género y sus implicancias taxonómicas."

23 November 2023

Aogan, Zhao L.-Q. & Zhang K. 2023: Taraxacum wuqiaense (Asteraceae), a new species from Xinjiang, China. – Ann. Bot. Fenn. 60: 227–230.

Abstract
"Taraxacum wuqiaense L.Q. Zhao & Aogan sp. nova (Asteraceae) from Xinjiang, China, is described from and illustrated. It morphologically resembles T. syrtorum but differs from it especially in the tubular (vs. ligulate) florets, petiole margin that is sometimes sparsely pilose (vs. glabrous), and sparsely ciliate (vs. densely arachnoid) margin of the outer phyllaries."

23 November 2023

Jordon-Thaden I. E., Spoelhof J. P., Viccini J. F., Combs J., Gomez Jr. F., Walker I., Soltis D. E. & Soltis P. S. 2023: Phenotypic trait variation in the North American Tragopogon allopolyploid complex. – Amer. J. Bot. 107(e16189): 1–16.

Abstract
"Premise: Recently formed allopolyploids Tragopogon mirus and T. miscellus and their diploid parental species, T. dubius, T. porrifolius, and T. pratensis, offer a rare opportunity to study the earliest stages of allopolyploidy. The allopolyploid species have also been resynthesized, allowing comparisons between the youngest possible allopolyploid lineages and their natural, established counterparts. For the first time, we compared phenotypic traits on a large scale in Tragopogon diploids, natural allopolyploids, and three generations of synthetic allopolyploids.

15 November 2023

Baskin C. C. & Baskin J. M. 2023: Seed dormancy in Asteraceae: a global vegetation zone and taxonomic/phylogenetic assessment. – Seed Science Research 33: 135–169.

Abstract
"The Asteraceae with up to 30,000 species occurs on all continents except Antarctica and in all major vegetation zones on earth. Our primary aim was to consider cypselae dormancy-break and germination of Asteraceae in relation to ecology, vegetation zones and evolution. Cypselae are desiccation-tolerant and in various tribes, genera, species and life forms of Asteraceae are either non-dormant (ND) or have non-deep physiological dormancy (PD) at maturity. All six types of non-deep PD are found among the Asteraceae, and dormancy is broken by cold or warm stratification or by afterripening. Soil cypselae banks may be formed but mostly are short-lived. Much within-species variation in dormancy-break and germination has been found. Using data compiled for 1192 species in 373 genera and 35 tribes of Asteraceae, we considered ND and PD in relation to life form, vegetation zone and tribe. Senecioneae and Astereae had the best representation across the vegetation zones on earth. In evergreen and semi-evergreen rainforests, more species have ND than PD, but in all other vegetation zones, except alpine/high-latitude tundra (where ND and PD are equal), more species have PD than ND. Tribes in the basal and central grades and those in the Heliantheae Alliance have both ND and PD. The high diversity and lability of non-deep PD may have enhanced the rate of species diversification by promoting the survival of new species and/or species in new habitats that became available following globally disruptive events since the origin of the Asteraceae in the Late Cretaceous."

15 November 2023

Bala M., Rehana S. & Singh M. P. 2023: Self-incompatibility: a targeted, unexplored pre-fertilization barrier in flower crops of Asteraceae. – J. Pl. Res 136: 587–612.

Abstract
"Asteraceae (synonym as Compositae) is one of the largest angiosperm families among flowering plants comprising one-tenth of all agri-horticultural species grown across various habitats except in Antarctica. These are commercially utilized as cut and loose flowers as well as pot and bedding plants in landscape gardens due to their unique floral traits. Consequently, ineffective seed setting and presence of an intraspecific reproductive barrier known as self-incompatibility (SI) severely reduces the effectiveness of hybridization and self-fertilization by traditional crossing. There have been very few detailed studies of pollen-stigma interactions in this family. Moreover, about 63% of Aster species can barely self-fertilize due to self-incompatibility (SI). The chrysanthemum (Chrysanthemum ×morifolium) is one of the most economically important ornamental plants in the Asteraceae family which hugely shows incompatibility. Reasons for the low fertility and reproductive capacity of species are still indefinite or not clear. Hence, the temporal pattern of inheritance of self-incompatibility and its effect on reproductive biology needs to be investigated further to improve the breeding efficiency. This review highlights the self-incompatible (SI) system operating in important asteraceous (ornamental) crops which are adversely affected by this mechanism along with different physiological and molecular techniques involved in breaking down self-incompatibility."

19 October 2023

Gottschlich G. & Brandstätter G. 2023: Kommentiertes Artenspektrum der Habichtskräuter (Gattungen Chlorocrepis, Hieracium und Pilosella) im Burgenland (Österreich). – Stapfia 116: 64–99.

Abstract
"From 2016 to 2018 a comprehensive mapping of hawkweeds (Hieracium s. str., Pilosella and Chlorocrepis) accompanied by intensive activities in collecting of herbarium specimens was carried out in the Burgenland (Austria). Additionally, records cited in literature and obtained by revision work in several European herbaria were added to our database. As a result, an annnotated list of hawkweeds species in Burgenland country is presented. It is based on almost 2900 datasets, of which nearly 2700 are documented by herbarium specimens. In additition to Chlorocrepis staticifolia the list includes 22 species of the genus Hieracium with 64 subspecies and 32 species of the genus Pilosella with five subspecies. All of them are documented by herbarium specimens. In addition, 31 subspecies from literature are cited in the text. Eight species of the genus Hieracium (H. diaphanoides, H. glaucinum, H. neostenophyllum, H. pillii, H. pseudobifidum, H. rotundatum, H. sibaricum, H. transylvanicum) and eight species of the genus Pilosella (P. acrothyrsa, P. calodon, P. erythrochrista,P. flagellaris, P. heterodoxa, P. koernickeana, P. tubulata and P. ziziana) were detected for the first time in Burgenland. Seven species, mentioned in the botanical literature (H. clusii, H. saxatile, H. schmidtii, H. subramosum, P. dubia, P. onegensis, Schlagintweitia intybacea) are classified as wrong or dubious information. The name of H. brevifolium subsp. brachysteleon is validated, the name of H. pilosellinum subsp. purbachense is lectotypified. Six new combinations are made: H. rotundatum subsp. lancifolium, H. rotundatum subsp. leptocephaloides, H. rotundatum subsp. platyrhombum, H. rotundatum subsp. pleiophyllopsis, H. rotundatum subsp. praecurrens, H. rotundatum subsp. subserratifolium."

17 October 2023

Gottschlich G., Drenckhahn D., Meierott L. & Zonneveld B. 2023: Hieracium maculatum subsp. pseudogougetianum, eine neue Unterart aus dem Mainfränkischen Muschelkalkgebiet [Hieracium maculatum subsp. pseudogougetianum, a new subspecies from the Main-Franco-nian shell-bearing limestone area]. – Forum Geobot. 11: 15–20.

Abstract
"In Lower Franconia/Northern Bavaria, a well-defined subspecies of the Hieracium maculatum group was detected. This subspecies is restricted to the slopes of the Main valley between Würzburg and Hasloch with a hot spot (> 90% of total population) between the villages Thüngersheim and Retzbach. Due to some similarities with H. glaucinum subsp. prasiophaeum (synonym: subsp. gougetianum) the subspecies is named H. maculatum subsp. pseudogougetianum. This subspecies grows preferentially on shell-bearing limestone gravels and begins flowering as early as mid-April. Head involucra are whitish hairy mixed with dark stalked glands. The basal leaf rosette consists of ovate to elliptic, toothed to serrate, dark spotted leaves, glabrous, glaucous above. Stems bear 1 ̶3(4) stalked stem leaves and usually form long lateral flowering branches from the leaf axils. Like some other H. maculatum subspecies, H. maculatum subsp. pseudogougetianum is tetraploid with a mean genome weight (2C value) of 14.5 pg, distinguishing it from the H. glaucinum group, whose studied taxa are invariably triploid (mean 10.1 pg)."

17 October 2023

Gottschlich G. 2023: Hieracium rotundatum subsp. silvae-bavaricae, eine neue Hieracium-Sippe aus dem Bayerischen Wald (Deutschland) [Hieracium rotundatum subsp. silvae-bavaricae, a new Hieracium taxon from the Bavarian Forest (Germany)]. – Forum Geobot. 11: 8–14.

Abstract
"Hieracium rotundatum subsp. silvae-bavaricae is described as new for science and illustrated. The new subspecies belongs to a group of species (H. rotundatum, H. transylvanicum) whose main distribution is in the Balkans. The changeful nomenclatural history of the species name is described. Diagnostic features to distinguish the growth habit-similar species H. murorum, H. rotundatum and H. transylvanicum are discussed. Particular attention is drawn to the importance of the development of the basic leaf cycle. Contrary to previous knowledge, the northwestern distribution limit of H. rotundatum extends now to southeastern Bavaria. During the search for H. rotundatum a morphologically conspicuous subspecies of H. rotundatum could be detected, which is described here as new."

12 October 2023

Vogt R. & Gottschlich G. 2023: Type material in the Hieracium (Compositae: Cichorieae) collection of Joseph Bornmüller. – Phytotaxa 613: 81–126.

Abstract
"The herbarium of Joseph Bornmüller (1862–1948) was acquired by the Berlin Botanical Museum in 1938 and belongs today to its most valuable possessions. Parts of Bornmüller's Hieracium collection remained in the museum's backlog and have now been incorporated in the general herbarium. A list of Hieracium names published by various authors on the basis of plant material collected by Bornmüller or deposited in Bornmüller's herbarium is presented here, including information on the type localities given in the protologues. The type material available is listed with full label data and other particulars to be found on the specimens. The status of the type specimens is discussed and the currently accepted names are provided. The names Hieracium fridae-bornmuelleriae and H. scitulum subsp. aquae-albae are validated, the new combinations H. bifidum subsp. arnstadtense, H. diaphanoides subsp. leptodermum, H. glaucinum subsp. chrysoprasicola, and H. schmidtii subsp. trichocyaneum are proposed, and 95 names are lectotypified."

12 October 2023

Haveman R. & Ronde I. de 2023: Hieracium doryphorum Haveman & De Ronde, a new hawkweed species from the Netherlands (Cichorieae, Asteraceae). – Gorteria 45: 85–92.

Abstract
"In this paper, we describe Hieracium doryphorum Haveman & De Ronde, a new species of Hieracium sect. Vulgata (Griseb.) Willk. & Lange. Specimens of this new species were previously misidentified as H. festinum Jord. (sub nomine H. vulgatum Fr. subsp. festinum (Jord.) Zahn), but the new species differs from the latter by its elongated and strongly dentated leaves, the absence of stellate hairs on the involucrum, and the long and slender glandular hairs in the inflorescence. Hieracium doryphorum is locally common in the northern Veluwe, Province of Gelderland, and at the Hondsrug, Province of Drenthe, the Netherlands, and it was also sparsely found elsewhere in the Netherlands in the Provinces of Overijssel, Drenthe, and Groningen."

29 September 2023

Soltis D. E. & al. 2023: Tragopogon pratensis: Multiple introductions to North America, circumscription, and the formation of the allotetraploid T. miscellus. – Taxon 72: 848-861.

Abstract
"Tragopogon (Asteraceae) includes two recently and repeatedly formed allopolyploids, T. mirus and T. miscellus, both of which formed in western North America following the human-mediated introduction of three diploids from Europe: T. dubius, T. porrifolius, and T. pratensis. We recently investigated the genetics of the introduction history to North America of T. dubius, the shared parent of both allopolyploids. Here, we investigate the introduction of T. pratensis into North America, the second diploid parent of T. miscellus. Using ITS sequence data, we found that T. pratensis as currently defined in the narrow sense is polyphyletic and comprises at least four different major ITS types in its native range. Of these native range ITS patterns, two have been introduced from Europe into North America and now occur widely across Canada and the U.S.A. Although the allotetraploid T. miscellus formed multiple times in western North America, only one of these ITS types was involved in the recurrent formations. These results for T. pratensis parallel our findings for T. dubius and further suggest that not all genotypes of these two species may be able to participate in the formation of allopolyploids. Our phylogenetic analyses reveal that several entities traditionally considered part of T. pratensis in the narrow sense are genetically distinct and mark unique lineages that may ultimately merit recognition as separate species. This proclivity for genetically distinct entities (potential cryptic species) within species recognized based on morphology appears common in Tragopogon. To unravel the complexities of what is referred to as “T. pratensis”, more intensive phylogenetic analyses involving many more samples from across the geographic range of the species are required, as are detailed assessments of taxonomy, morphology, and cytology."

29 September 2023

Nilsson T. & Tyler T. 2023: Twelve new species of Hieracium sect. Tridentata (Asteraceae) from southern Sweden. – Nordic J. Bot. 2023, e03924: 1-32.

Abstract
"Twelve new, presumably apomictic species of Hieracium sect. Tridentata, namely H. arcanum, H. versifrons, H. hyperoptum, H. irrugantifrons, H. karolinae, H. leucophlebium, H. melanostigma, H. neomixopolium, H. oxyodontum, H. rostockense, H. subcreperum and H. verecundum are described from the Götaland region of southern Sweden. Apart from morphological descriptions, illustrations and maps showing the distribution of all the species are provided."

29 September 2023

Wendt G. & Øllgaard H. 2023: Taraxacum sectum sp. nov., a new member of T. sect. Erythrosperma (Asteraceae) from the Baltic island Öland, Sweden. – Nordic J. Bot. 2023, e03874: 1-4.

Abstract
"Taraxacum sectum is described as a new member of T. sect. Erythrosperma from the Baltic island of Öland, Sweden, where it has been found at ca 15 sites in alvar habitats as well as in somewhat disturbed dry and sandy grasslands. The new species is similar to T. saphycraspedum, T. marginatum and T. taeniatum but differs from all of these by a combination of characters: pale greenish yellow styles, ± vertically erect leaves, strongly recurved outer phyllaries, hairy scapes and conspicuously light grayish hairy basal parts."

29 September 2023

Kokubugata G., Kakishima S., Ito T., Saito Y., Ishii C., Chung K.-F., Labuguen M. L., Lopez-Feliciano A. & Yokota M. 2023: Phylogenetic background and taxonomic status of Crepidiastrum lanceolatum (Asteraceae) sold as a traditional vegetable in Okinawa Prefecture, Japan revealed by MIG-seq SNP data. – Bull. Natl. Mus. Nat. Sci., Ser B, 49: 73-82.

Abstract
"We evaluated the phylogenetic and taxonomic relationships among plants of Crepidiastrum lanceolatum collected from wild populations, traditionally cultivated on Kudaka-jima Island and commercially sold as a traditional vegetable in Okinawa Prefecture, using MIG-seq SNP data. The results showed that most plants being sold in markets belonged to a single clade, and all of them were more closely related to wild plants from outside of Okinawa Prefecture and cultivated plants on Kudaka-jima Island than to wild plants from islands within Okinawa Prefecture. These results suggest that most C. lanceolatum plants sold in Okinawa Prefecture have a single origin, such that they might have been artificially introduced from outside of Okinawa Prefecture."

14 September 2023

Dey S., Barbhuiya H.A. & Moaakum 2023: Dubyaea atropurpurea (Asteraceae): an addition to the flora of India. – Rheedea 33: 92–96.

Abstract
"Dubyaea atropurpurea Stebbins (Asteraceae: Cichorieae) is reported here for the first time from India. A brief description of the plant along with colour photographs, distribution map and a key to the Indian taxa of Dubyaea DC. is provided to facilitate easy identification, as well as to throw light on its phytogeography. Its taxonomic affinities and differences with closely related species are examined and discussed."

8 August 2023

Zhang J.-W., Kilian N., Huang J.-H. & Sun H. 2023: Ixeridium sagittarioides (Asteraceae-Cichorieae) revisited: range extension and molecular evidence for its systematic position in the Lactuca alliance. – PhytoKeys 230: 115-130.

Abstract
"Our first record of the rare and scatteredly distributed Ixeridium sagittarioides for Guizhou, China, triggered a study to assess its systematic position. The species was placed in four different genera in the course of its taxonomic history and was recently treated with doubts as a member of Ixeridium in the Flora of China. Comparative morphological investigation and phylogenetic analyses based on the nuclear ribosomal DNA internal transcribed spacer (nrITS) and five non-coding plastid DNA regions (petD region, psbA-trnH, trnL-trnF, rpl32-trnL (UAG) and 5´rps16-trnQ (UUG) spacers) provided evidence that the species is not a member of Ixeridium and the Crepidinae but has evolved by ancient hybridisation of members of the Lactuca alliance (Lactucinae). It is reinstated as Lactuca
sagittarioides and a comprehensive morphological description is provided, based on material from its entire range of distribution."

8 August 2023

Szeląg Z. 2023: Hieracium purkynei (Asteraceae): an endemic to the Sudetes rediscovered after a century. – Phytotaxa 601: 90-96.

Abstract
"Hieracium purkynei was described from specimens collected in 1884 in the Giant Mountains, Sudetes, in Czechia. Since 1914, the species was considered extinct. In 2019, two new localities of H. purkynei were found on the Polish side of the Giant Mountains. The species is illustrated with photographs of the holotype (kept at PR) and, for the first time, living plants in the field."

8 August 2023

Burke A. & Mannheimer C. 2023: First record of the North African Launaea arborescens in southern Africa. – Bothalia 53(a7): 1-10.

Abstract
"The first record of the non-native, naturalised Launaea arborescens (Batt.) Murb. in the Namib Desert raised  questions of its origin and whether or not it could pose a threat to the indigenous vegetation. The North African plant was introduced in a forestry nursery in the Kuiseb Delta and some individuals were also planted outside the nursery in the early 1970s. They have maintained a likely viable population for nearly 50 years, but have so far not been observed elsewhere and thus appear not to be spreading."

8 August 2023

Ebrahimi A., Attar F., Nazemiyeh H., Mirtadzadini M. & Blackmore S. 2023: Pollen morphology of Scorzonera s.l. (Asteraceae, Cichorieae, Scorzonerinae) occurring in Iran. – Phytotaxa 595: 241-285.

Abstract
"Pollen characters of 48 species of Scorzonera s.l. distributed in Iran were investigated by using light and scanning electron microscopy. The pollen grains are isopolar, radially symmetric, generally 3-zonocolporate, rarely 2-colpororate or 4-colporate. The pollen grains are oblate-spheroidal in shape (P/E=0.89 to 0.99) with the polar axes 37.1–58.1 μm and the equatorial axes 38.8–60.6 μm. We adopted the four pollen types recognized by Blackmore based on the number and position of their lacunae. For the first time, some pollen grains of S. longipapposa and S. tortuosissima were shown to have 26 (24+2) lacunae. We compared pollen morphological characters with the findings of the most recent systematic treatment. Type A with 6 lacunae was observed in Takhtajaniantha pusilla and S. parviflora, type B with 18 lacunae in Gelasia, type C with 20 lacunae in Pseudopodospermum and type D with 24 lacunae in Ramaliella, S. renzii and the Podospermum clade (except S. laciniata) in Scorzonera. We also observed 15 or 18 lacunae in S. rupicola. The pollen in Scorzonera appears to evolve toward reduction of spines in S. parviflora, extension of spines in the Podospermum clade, enlargement of the space between ridges and increase in the number of lacunae (S. longipapposa and S. tortuosissima). 26 pollen characters of the examined species were analysed by UPGMA and PCA. Pollen size, spine size, distance between spines, number and arrangement of spines between two equatorail lacunae, exine thickness, spine length/P or E, dimensions of lacunae and polar area were shown to contribute significantly to understanding the morphology of Scorzonera."

14 July 2023

Wolanin M., Klichowska E., Jedrzejczyk I., Rewers M. & Nobis M. 2023: Taxonomy and distribution of Taraxacum sect. Erythrosperma (Asteraceae) in Poland. – PhytoKeys 224: 1–88.

Abstract
"The dandelions from Taraxacum sect. Erythrosperma are taxonomically well distinguished and ecologically restricted to warm and sunlit habitats of steppes, dry and sandy grasslands, and distributed in temperate regions of Europe and Central Asia, with some being introduced to North America. Despite the long tradition of botanical research, the taxonomy and distribution of dandelions of T. sect. Erythrosperma is still underexplored in central Europe. In this paper, by combining traditional taxonomic studies supported by micromorphological, molecular and flow cytometry analyses as well as potential distribution modelling we shed light on taxonomical and phylogenetical relationships between members of T. sect. Erythrosperma in Poland. We also provide an identification key, species-checklist, detailed descriptions of morphology and occupated habitats as well as distribution maps for 14 Polish erythrosperms (T. bellicum, T. brachyglossum, T. cristatum, T. danubium, T. disseminatum, T. dissimile, T. lacistophyllum, T. parnassicum, T. plumbeum, T. proximum, T. sandomiriense, T. scanicum, T. tenuilobum, T. tortilobum). Finally, conservation assessments performed using the IUCN method and threat categories for all the examined species are proposed."

14 July 2023

Rich T. C. G. 2023: Conservation of Britain’s biodiversity: rediscovery of the extinct Lake District endemic Hieracium fissuricola, Fisherplace Gill Hawkweed (Asteraceae). – Brit. & Irish Bot. 5: 131-136.

Abstract
"Hieracium fissuricola P.D. Sell, Fisherplace Gill Hawkweed, is a rare Lake District endemic. It had not been refound at the original 1954 locality at Fisherplace Gill and was regarded as extinct. A new site was discovered on the nearby Glenridding Estate in 2021 which comprised a tiny colony of six plants. It is IUCN (2001) Threat Status ‘Critically Endangered’. Seed has been deposited in the Millennium Seed Bank."

14 July 2023

Bevan J. 2023: Hieracium tridentatum (Asteraceae) in Britain. – Brit. & Irish Bot. 5: 196-208.

Abstract
"The history of the publication of the hawkweed taxon H. tridentatum (Fr.) Fr. is given together with early accounts in British literature. The removal of the species in 1958 and its replacement with H. trichocaulon (Dahlst.) Johanss. is then assessed."

14 July 2023

Beharav A., Stojakowska A., Nevo E. & Lebeda A. 2023: New insights gained from collections of wild Lactuca relatives in the gene bank of the Institute of Evolution, University of Haifa. – Israel J. Pl. Sci. https://doi.org/10.1163/22238980-bja10079

Abstract
"The Institute of Evolution’s (IoE’s) Wild Lettuce Gene Bank (WLGB), established in the mid 1990s, contains new and extensive collections of five wild Lactuca relatives (WLRs) originating from Israel and Armenia: L. serriola, L. aculeata, L. georgica, L. altaica, and L. saligna. The objectives of the WLGB relate to the identification, collection, distribution, conservation, and characterization of the population genetic structure of these unique germplasms for crop improvement. Comprehensive studies are ongoing to determine the taxonomic position and crossing potential of the critical mass of collected species with domesticated lettuce, L. sativa, based on: (i) select morphological and phenological characteristics; (ii) molecular data; (iii) downy mildew resistance and (iv) variation in biologically active secondary metabolite content. In this review we present an overview of our key findings and highlight the advances in knowledge on these themes. Our germplasm collections and novel results, obtained by detailed, large-scale screening of natural populations and individuals for genetic variation, will considerably advance crop breeding research and practices. In addition, we critically summarize the recent literature and findings relating to three additional WLRs: L. dregeana, L. scarioloides, and L. azerbaijanica. The main long-term purpose of our research is to facilitate broadening of the genetic variation of domesticated lettuce by using new and adaptive germplasm in interspecific hybridization of lettuce."

14 July 2023

Tellería M. C., Barreda V. D., Jardine P. E. & Palazzesi L. 2023: The use of pollen morphology to disentangle the origin, early evolution, and diversification of the Asteraceae. – Int. J. Pl. Sci. 184: 350-365.

Abstract
"Pollen morphology has proven to be particularly informative for elucidating the evolutionary relationships within Asteraceae (or Compositae). However, very few studies have attempted to reconstruct the character states across the family based on pollen data. Here, we mapped pollen characters onto a recent phylogenomic tree of Asteraceae based on new and published observations. We also revised the pollen morphology of selected lineages of the family largely distributed in South America, including living representatives of the oldest fossils of Asteraceae. By mapping the three selected pollen characters onto a recent phylogenomic framework, we detected shifts and trends across the evolution of the family. Our study showed that Asteraceae pollen grains ancestrally possessed microspines and a nonlayered ecaveate exine. The morphology of this reconstructed ancestor agrees with that of the oldest extinct fossil pollen grains assigned to Barnadesieae discovered in late Cretaceous sediments from Antarctica and New Zealand. The presence of a layered sexine with stout columellae characterizes the most recent common ancestor of all Asteraceae, except for the sister clade Barnadesieae. This extinct ancestor also appears to be represented in the fossil record with morphologically related species of Mutisiapollis, distributed in Paleogene sediments across Patagonia, Africa, and Australia. Taken together, our work supports previous studies, indicating that the range of variation in pollen morphology across Asteraceae is wide yet phylogenetically structured. However, pollen characters (and character states) fail to support the unequivocal recognition of the selected monophyletic South American groups. Although preliminary, our results highlight the importance of scoring pollen characters to identify fossil specimens, explore character evolution, and reconstruct ancestral forms."

11 July 2023

Ebrahimi A., Hatami E., Safavi S. R. & Mirtadzadini M. 2023: Gelasia attariana (Scorzonerinae, Cichorieae, Asteraceae), a new species from NW of Iran, inferred from morphological and molecular data. – Phytotaxa 597: 165–174.

Abstract
"Gelasia attariana is described as a new species from northwest of Iran, near the border to Azerbaijan. The new species is morphologically similar to G. cinerea and G. wendelboi, mainly because of sharing caulescent perennial life form, entire lanceolate leaves with 3–7 parallel veins, tomentose indumentum of phyllaries and glabrous achenes without carpopodium, but differs in plant height, indumentum type of stems and leaves, length/width ratio of leaves, leaves color, apex of leaves and length of achenes and pappus. Morphological comparisons and taxonomic relationships of G. attariana with its closely related taxa are discussed. Consistent with morphological data, molecular evidences based on nrDNA ITS sequences confirmed that the new species can be recognized as a distinct taxon from its close relatives. Description, images of living plants and distribution map of the new species are also provided."

11 July 2023

Safavi S. R., Jarchi E. & Mahmoodi M. 2023: Allied section and emended description of Scorzonera helodes Rech. f. (Asteraceae). – Iran. J. Bot. 38: 150–155.

Abstract
"The type specimen of Scorzonera helodes Rech.f. was collected by Rechinger, the Austrian botanist in 1974 from the high mountain wet meadows between Daran and Buin in Esfahan. At the same time and on the same trip, another specimen was collected by the Finnish botanist, Alava, from the same place. 38 years later in 2012, another specimen of the species was collected by Maroofi, the Iranian botanist, from Kharke on the road from Sanandaj to Divandareh in Kurdistan Province. All of these specimens lack ripened achenes (which is necessary for accurate identification and determination of the sections in the genus). The section of the species was not specified when it was introduced by Rechinger (1977). Finally, in 2015, the second author collected several standard specimens with ripened achenes from an area around Tazeh-kand-e Fakhrilou village in Zanjan Province, NW Iran. By extensive and detailed examination of the specimens, the authors came to the conclusion that these specimens are Scorzonera helodes Rech.f. and belong to Subgen. Scorzonera Sect. Dimorphopapposa Lipsch. In addition, here the description of the species is emended."

10 July 2023

Kirschner J. & Štepánek J. 2023: Towards a revision of Taraxacum sect. Macrocornuta (Asteraceae, Crepidinae), an Irano-Turanian group with prevailing sexual reproduction. – Phyton (Horn) 62-63: 41-74.

Abstract
"Taraxacum section Macrocornuta is widely distributed in the Irano-Turanian region, from Iran to NW. India and to Middle Asia. It is characterized by common sexual reproduction, unlike most of the other Taraxacum groups. More than 40 names were published referable or believed to refer to this group. A taxonomic and nomenclatural revision of these names was carried out on the basis of a detailed study of the original material of each name, and additional herbarium collections were consulted. Newly gathered material from expeditions to Iran and Kazakhstan was also evaluated. Four sexual species are recognized and accepted under previously published names (with nine synonyms), and one name based on sexually reproducing plant material remains to be studied. The variable complex around T. nevskii is divided into two subspecies (subsp. nevskii and subsp. lipskyi). As regards species with agamospermous reproduction, ten species were accepted, two of them are newly described (from Kazakhstan), another seven names were relegated to the synonymy. Four names, referable to T. sect. Macrocornuta, were left without taxonomic treatment (missing or totally inadequate original material), and seven names represent taxa excluded from T. sect. Macrocornuta. An identification key to all taxa is provided, together with typifications of names, and descriptions and comments for each species. "

10 July 2023

Vitek E. & Armağan M. 2023: Gundelia purpurascens (Compositae) is a synonym of G. rosea. – Phyton (Horn) 62-63: 35-39.

Abstract
"The recently published Gundelia purpurascens (Bornm.) Firat is shown to be a synonym of G. rosea. Gundelia tournefortii as understood by Al-Taey & Hossain (1984) can be assigned to G. tehranica Vitek & Noroozi. For the two species a preliminary distribution map is given."

17 May 2023

Gottschlich G. 2023: Four new Hieracium taxa (Compositae) from the Balkans (North Macedonia, Montenegro) and Greece and one new Hieracium record for Europe. – Ann. Naturhist. Mus. Wien, B, 125: 143–153.

Abstract
"Hieracium specimens (Compositae) collected by F.X. Krendl (1926–2020) in North Macedonia, Montenegro and Greece are revised. As a result, Hieracium strumicanum, H. krendlii, H. belavodae and H. racemosum subsp. chaetissimum are described as new to science. H. praelongipes, hitherto only known from Turkey, is documented as new for Europe (North Macedonia)."


17 May 2023

Gottschlich G. & Brandtstätter G. 2023: Neue Hieracium-Taxa aus dem Burgenland (Österreich). – Stapfia 116: 1–12.

Abstract
"Two species (Hieracium sibaricum, H. pillii) and 3 subspecies (H. diaphanoides subsp. semiorbiculare, H. glaucinum subsp. semibasalticum, H. glaucinum subsp. domimontis) are described as new for science from the Burgenland (Austria)."


17 May 2023

Gottschlich G. 2023: Hieracium hypochoeroides subsp. reiteri, ein neues Hieracium-Taxon aus dem Bundesland Salzburg (Österreich). – Mitt. Haus der Natur 28: 21–24.

Abstract
"Based on an excellent collection, hosted in the herbarium SZB, and made by Matthias Reiter, a priest, who occupied himself intensively with the genus Hieracium in the country of Salzburg (Austria), Hieracium hypochoeroides subsp. reiteri Gottschl. is described as new for science and illustrated. It seems to be a local endemic taxon, hitherto only known from the Anlauf valley (Ankogel group) in the “Hohe Tauern”."


5 May 2023

Szeląg Z. 2023: Hieracium lomniczkianum (Asteraceae), a new species in the H. wiesbaurianum aggregate from the Sudetes in Poland. – Phytotaxa  594: 251–255.

Abstract
"Hieracium lomniczkianum is a new, apomictic species, discovered in the Karkonosze Mountains (Giant Mountains) in the Sudetes, SW Poland. It belongs to the H. wiesbaurianum aggregate which comprises taxa intermediate in characters between H. bifidum s.lat. and H. schmidtii s.lat. The new species is distinguished by a slender stem with small capitula, and by narrow, weakly dentate rosette leaves which are gradually tapered to a winged petiole."


28 April 2023

Takano A. & al. 2023: Ploidy level and nuclear DNA content of Taraxacum shikotanense (Asteraceae). – J. Jap. Bot. 98: 19–28.

Abstract
"To estimate the ploidy level frequencies of Taraxacum shikotanense Kitam. (Asteraceae) in Hokkaido, Japan, the nuclear DNA content (2C) of 292 plants from 13 localities was measured by flow cytometry (FCM) using Petroselinum crispum (2C = 4.5 pg) as the internal standard. The chromosome count of the species showed that 11 plants from seven localities were octoploid (2n = 64 = 8x) and five plants from two localities were nonaploid (2n = 72 = 9x). Monoploid genome sizes (1Cx) of the octoploid plants were 1.14–1.22 pg, which were similar to those of the nonaploid plants (1.13–1.17 pg). The expected 2C value of each ploidy level was calculated based on 1Cx = 1.13–1.22 pg, and the frequency of each ploidy level was evaluated. As a result, 183 plants (62.7%) of T. shikotanense examined by FCM were estimated as octoploid. The hexaploid (6x), heptaploid (7x), nonaploid (9x), and decaploid (10x) plants were putatively detected at low frequencies (0.3–4.1%). The monoploid genome size of T. shikotanense was significantly lower than those of the Japanese diploid species (1.41–1.59 pg). This suggests that T. shikotanense arose from an unknown ancestral species with small genome sizes or experienced DNA downsizing as its ploidy level increased."


24 April 2023

Kirschner J. & Štěpánek J. 2023: A taxonomic revision of Taraxacum sect. Dissecta, a continental steppe group common in Siberia and adjacent regions of Central Asia. – Phytotaxa 590: 1–67.

Abstract
"Steppe and similar habitats in southern Siberia, Mongolia and adjacent regions harbour a considerable diversity of Taraxacum sect. Dissecta (Asteraceae, Crepidinae); its taxonomic revision is presented. A thorough study of live and herbarium plants revealed 30 species that belong, or are very close, to T. sect. Dissecta; seven species were known previously and 23 are described as new, mostly from the Altai Republic, Novosibirsk, Irkutsk, Lake Baikal and Bratsk. Their distribution includes the Asiatic part of Russia, Kazakhstan, Kyrgyzstan, Mongolia and Xinjiang, China. The name T. dissectum (Ledeb.) Ledeb. is relegated to the synonymy of T. pubescens (Fr.) Fr. A detailed analysis of the original material of the name T. collinum revealed that it consists of mostly juvenile plants belonging to several species of T. sect. Dissecta, and that it requires further study on newly collected material. The frequently reported occurrence of T. sect. Dissecta (as T. dissectum) in the European mountain ranges was reassessed. The reports from the Pyrenees belong to T. pyrenaicum and related species of T. sect. Obliqua. Two mutually similar species, often referred to as T. dissectum, recognized as T. aquilonare Hand.-Mazz. and T. zermattense Dahlst., were studied in order to reconsider the hypothesis that they represent T. sect. Dissecta in the Alps. On the basis of morphological and phytogeographical data, we present this hypothesis as quite plausible but requiring experimental, phylogeographic evidence; a full treatment of both species is also given. The name T. compactum is typified and the species is excluded from T. sect. Dissecta; it belongs to T. sect. Qaisera."


24 April 2023

Gottschlich G. & Selvi F. 2023: Hieracium moravense (Asteraceae), a new hawkweed from Albania. – Phytotaxa 592: 73–78.

Abstract
"Hieracium moravense, a new hawkweed from the ultramafic soils of the region of Korcë in Albania, is described and illustrated."


24 April 2023

Szeląg Z. 2023: Hieracium umbellonigritum (Asteraceae), a new hybridogenous species from the Sudetes in Poland. – Phytotaxa 589: 282–292.

30 March 2023

Ballou S. M., Omand K. A., Karberg J., Bonifacino J. M. & Mandel J. R. 2023: A harried past for a glabrous lettuce: Resurrection of Lactuca sanguinea Bigelow (Cichorieae), the wood lettuce from Nantucket Island, Massachusetts, USA. – Capitulum 2(2): 59–68.

Abstract
"We resurrect from synonymy Lactuca sanguinea based on morphological analysis of herbarium specimens and field obser vations. We report recent populations of Lactuca sanguinea occurring in several locations across Nantucket Island in Massachusetts, USA, and provide the first collections in over fifty years within the state. The species consistently has predominantly dark purple-red stems and leaves and crimson corollas, which together with its glabrous nature sets it apart from Lactuca hirsuta. We designate a lectotype, present an expanded morphological description and taxonomic history for the species and provide line drawings and images."

30 March 2023

Štěpánek J. & Kirschner J. 2023: A distinctive group of species allied to Taraxacum danubium (T. sect. Erythrosperma, Compositae‑Crepidinae): a taxonomic revision. – Folia Gebot. 57: 269–301.

Abstract
"Within Taraxacum section Erythrosperma, several relatively distinct species groups are recognized. One of them, characterized by leaves with numerous, usually patent, very narrow lateral segments, frequently with their most distal part dilated, and outer phyllaries patent or arcuate-recurved, often with tips approaching the involucre base, with narrow whitish borders, includes species similar to the Central European Taraxacum danubium. This group comprises nine species, the majority of them (five species) being confined to the Balkan Peninsula. Another diversity centre of the group is the southernmost Ukraine. The most widespread species is T. persicum, extending from Iran and the lower river Volga to Central Europe. A detailed taxonomic revision of the whole group is presented, and descriptions, illustrations and lists of specimens studied are given. Two Balkanic species are newly described, the name T. danubium is lectotypified, another three names are relegated to the synonymy of the accepted names, and an unclear name, T. pineticola, is discussed. The species concept in Taraxacum is briefly expounded."

30 March 2023

Martínez-Quezada D. M., Rivera P., Rojas-Leal A., Villaseñor J. L. & Terrazas T. 2022: Leaf secretory structures in Asteraceae: a synthesis of their diversity and evolution. – Bot. Review 89: 59–90.

Abstract
"This study presents the first comparative analysis of the leaf secretory structures across Asteraceae. In this work, the leaf secretory structures of more than 500 species of 35 of the 40 tribes and 11 of the 13 subfamilies of Asteraceae are described and compared to evaluate their diversity at the tribe level and to identify evolutionary patterns. Leaf secretory structures are present in 28 of the 35 analyzed tribes and correspond to canals (recorded in 17 tribes), secretory cavities (1 tribe), hydathodes (19 tribes), laticifers (4 tribes) and glandular trichomes (24 tribes). Canals are mostly associated with vascular bundles and predominate in Asteroideae, while cavities were only present within Tageteae. Hydathodes occur in leaves without divisions and with well-developed teeth. Laticifers were observed only in the tribes of Cichorioideae. Seven glandular trichome morphotypes were differentiated by their cellular composition and shape. These observations together with the available information showed that secretory structures are found in 80% of the Asteraceae tribes. Four of the 40 tribes did not present any type of secretory structure. Our study reveals that almost all of the tribes possess one to three types of secretory structures, and are absent in some early-diverging clades. Character evolution analyses show that glandular trichomes are plesiomorphic in Asteraceae. This study found that secretory structures prevail in late-diverging lineages and were taxonomically informative at different levels. Our comparative study of the secretory structures in Asteraceae is essential for the standardization of its terminology and will provide a frame of reference for future studies."

22 March 2023

Ferrer-Gallego P. P. & Talavera M. 2023: Rhagadiolus edulis (Cichorieae, Compositae), a replacement name for Lapsana rhagadiolus L. or a name of a new taxon? – Phytotaxa 589: 91-96.

Abstract
"Rhagadiolus edulis (Cichorieae, Compositae) can be treated either as a replacement name or as the name of a new taxon according to the International Code of Nomenclature for algae, fungi, and plants. Treating it as a replacement name would be nomenclaturally disruptive, whereas treating it as the name of a new taxon, confirmed by an appropriate typification, maintains current usage. Therefore, the nomenclatural type for the name Rhagadiolus edulis is discussed. The name is lectotypified by a specimen preserved in the Gaertner Herbarium at TUB.

17 March 2023

Szeląg Z. 2023: A new species in Hieracium sect. Alpina (Asteraceae) from the Eastern Carpathians in Romania. – Phytotaxa 585: 293-297.

Abstract
"Hieracium ciucasense is a new, apomictic species described from the Ciucaş Mountains in the Eastern Carpathians, Romania. It belongs to the H. pietroszense aggregate comprising taxa of  presumably hybrid origin between H. alpinum L. and H. bifidum s. lat. The new species is illustrated with photographs of the holotype and living plants; it differs from the other taxa of the H. pietroszense aggregate in the Carpathians in that the leaves are brown-purple spotted. The distribution of the H. pietroszense aggregate in the Carpathians is mapped."

17 March 2023

Karthik B., Murugesan M, Ravichandran V., Tharani R. & Mugendhiran S. 2021: Rediscovery of stenoendemic Youngia nilgiriensis (Asteraceae: Cichorieae) after 136 years in its habitat, Nilgiri Biosphere Reserve, India. – J. Econ. Taxon. Bot. 45: 92-95.

no Abstract.

17 February 2023

Ferreira M. Z., Hernández I. Á & Menezes de Sequiera M. 2023: Taxonomic and nomenclatural notes on Andryala glandulosa subsp. cheiranthifolia (Cichorieae, Asteraceae) from Madeira Island, Portugal. – Phytotaxa 579: 243–254.

Abstract
"Currently two subspecies of Andryala glandulosa endemic to Madeira (Portugal) are recognized: A. glandulosa subsp. glandulosa and A. glandulosa subsp. cheiranthifolia. A thorough revision of both taxonomical and nomenclatural aspects led us to the conclusion that the subspecific epithet cheiranthifolia was misapplied. Thus, we suggest to synonymize Andryala glandulosa with A. cheiranthifolia and accept A. glandulosa as the correct name for the taxon presently known as A. glandulosa subsp. glandulosa. The taxon currently recognized as A. glandulosa subsp. cheiranthifolia exhibits distinct vegetative and reproductive structures when compared to A. glandulosa subsp. glandulosa and should, therefore, be treated as a separate species, for which the name A. subglabrata is hereby proposed. A detailed description and illustration of A. subglabrata are provided and its lectotype is designated. Diagnostic characters are discussed and compared with those of A. glandulosa."

13 February 2023

Soltis D. E., Mavrodiev E. V., Gitzendanner M. A., Alexeev Y. E., Godden G. T. & Soltis P. S. 2022: Tragopogon dubius: Multiple introductions to North America and the formation of the New World tetraploids. – Taxon 71: 1287–1298.

Abstract
"Tragopogon (Asteraceae) is an evolutionary model for the study of whole-genome duplication, with two recently and repeatedly formed allopolyploids, T. mirus and T. miscellus, and many additional polyploid species. Tragopogon mirus and T. miscellus formed in western North America following the introduction of three diploids from Europe: T. dubius, T. porrifolius, and T. pratensis. Of these diploids, T. dubius is a shared parent of both tetraploids and is broadly defined and widely distributed in Eurasia. Because human-mediated intercontinental introductions may lead to hybridization with local species, and associated polyploidization, the introduction history of T. dubius from Europe to North America provides further opportunity to investigate both the extent and consequences of plant introductions. Using ITS sequence data, we show that the morphologically diverse, broadly defined T. dubius comprises a complex of at least 10 different ITS types in its native range, six of which have been introduced from Europe into North America. Significantly, although the two allotetraploid species have each formed multiple times on geographical scales from local to regional, recurrent formation is the result of repeated hybridization involving only one of these ITS subtypes. These results reinforce earlier data suggesting that not all diploid genotypes can form allopolyploids. Several entities traditionally considered part of T. dubius s.l. are now recognized as distinct species (e.g., T. lainzii), and it is likely that other distinct ITS genotypes identified here may also mark unique lineages that ultimately merit recognition as separate species. However, more intensive phylogenetic analyses involving many more samples from across the geographic range of T. dubius are required, as are detailed assessments of taxonomy, morphology, and cytology."


13 February 2023

Dudáš M. & Vašut R. J. 2022: Taraxacum sect. Erythrosperma in Slovalia III: Taraxacum parnassicum Dahlst., new localities and notes on its distribution and taxonomy. – Acta Bot. Hung. 64: 273-283.

Abstract
"The paper presents new records of Taraxacum parnassicum, the most common member of Taraxacum section Erythrosperma in Slovakia. The species has been recorded in most of the 31 phytogeographical districts of Slovakia. At least 25 new localities were discovered, and many old ones were confirmed. T. parnassicum prefers natural and semi-ruderal sites on limestone, rarely on volcanic and sandy soils, predominantly not shaded. The majority of populations occur from the lowland to supracolline vegetation belt, mainly at elevations of 140–700 m a.s.l., with the altitudinal maximum at 1,410 m a.s.l. A distribution map is given with the list of localities from the whole territory of Slovakia as well as short discussion about its taxonomy and ploidy level."

13 February 2023

Jiménez J. F., Ramírez-Rodríguez R., Melendo-Luque M., Suárez-Santiago V. N. & Sánchez-Gómez P. 2022: Genetic diversity and structure of the narrow endemic species Crepis granatensis: implications for conservation. – Pl. Biosystems 156: 1129-1137.

Abstract
"In this study, we studied the genetic diversity and population genetic structure of the endangered endemic Crepis granatensis, using amplified fragments length polymorphism (AFLP) and plastid DNA (cpDNA). No genetic divergences were obtained using cpDNA markers. Three primers combinations selected from a total of 12 produced a total of 421 fragments, of which 418 (99.3%) were polymorphic. The total genetic diversity of C. granatensis was moderate (Ht = 0.260). Neís gene diversity ranged from 0.202 to 0.258. The fixation index (Fst) was 0.137, suggesting low to moderate genetic differentiation among populations. The AMOVA analysis revealed that genetic diversity was mainly concentrated among individuals within populations (74%), while 8% was found among populations and 18% among regions. The Bayesian analysis and PCoA identified two genetic clusters: one corresponded to La Sagra population and the other corresponded to the Mágina populations. Based on our genetic results, it is necessary to preserve the evolutionary potential of C. granatensis by protecting all extant populations. Both in situ and ex-situ conservation measures should be considered. Reinforcement, reintroduction, and translocation programmes could be performed if necessary. Finally, such conservation strategies should be considered both in the current recovery plan and management actions for the species."

13 February 2023

Rich T. C. G. 2022: Conservation of Britain’s biodiversity: Hieracium breconense (Asteraceae), Brecon Hawkweed. – British & Irish Botany 4: 273-281.

Abstract
"The distribution and conservation status of Hieracium breconense P.D. Sell (Asteraceae), Brecon Hawkweed, has been assessed. It is a rare endemic restricted to the Brecon Beacons (v.c.42), Wales. A lectotype of the basionym H. britannicum var. ovale Ley is designated. Only one population of at least 74 plants is known in Craig y Cilau National Nature Reserve, and it has not been refound at two historic sites. H. breconense is assessed as ‘Critically Endangered’ under IUCN (2001) threat criteria."

13 February 2023

Bevan J. 2022: The genus Hieracium (Asteraceae) in the British Isles in 1821. – British & Irish Botany 4: 145-154.

Abstract
"Sixteen species of plants placed in the genus Hieracium in 1821 are listed together with the current Latin name now generally accepted. H. auricula, of doubtful occurrence, is also mentioned. Problems of nomenclature that still exist are discussed."

13 February 2023

Kuluev B., Fateryga A., Zakharova E., Zakharov V. & Chemeris A. 2022: Pinkish-achened form of Taraxacum hybernum Steven – a source of inulin and high molar mass natural rubber. – Botany Letters, https://doi.org/10.1080/23818107.2022.2147998

Abstract
"Taraxacum hybernum Steven (Asteraceae family) native to Southeast Europe is a promising rubber-bearing dandelion species. In the 1930s, several phenotypically distinct forms were described in this dandelion, such as brown-achened and pinkish-achened. More than 70 years after termination of research of temperate zone rubber-bearing plants we were able to find both forms of this species of dandelion in natural habitat. The species is still poorly studied, and there is no information about the differences in the quality and quantity of rubber between brown-achened and pinkish-achened forms. Therefore, the purpose of our study was to analyze the root morphology and yield, the rubber and inulin content, and to determine the molar mass of rubber in brown-achened and pinkish-achened T. hybernum. These two forms of T. hybernum, as well as T. kok-saghyz Rodin and T. brevicorniculatum Korol., were studied. The results show that the root shape most attractive for domestication is typical of brown-achened T. hybernum. The greatest mass of roots was gained for pinkish-achened T. hybernum. The rubber content was about 6% in T. kok-saghyz, 3% in both forms of T. hybernum, and 1.5% in T. brevicorniculatum per dry root mass. Taraxacum kok-saghyz and pinkish-achened T. hybernum turned out to be the leaders in inulin content. Of all four dandelions, the molar mass of rubber was more than 1 million g/mol only for T. kok-saghyz and pinkish-achened T. hybernum. Pinkish-achened T. hybernum is a good alternative for T. kok-saghyz and can be recommended for domestication and cultivation in the temperate zone."

6 February 2023

Vladimirov V. & Stoyanov S. 2022: A new species record of Tragopogon (Asteraceae) for the Bulgarian flora. – Phytol. Balcan. 28: 341-346. 

Abstract
"Tragopogon coelesyriacus (Asteraceae) is reported for the first time for the Bulgarian flora. It has been recorded in several closely situated localities in the Eastern Rhodopi Mountains, all on the territory of Ivaylovgrad Municipality. The species is easily recognized by the other non-yellow flowering Tragopogon species in the Bulgarian flora by its very short ligules and long-beaked, buff-coloured to nearly whitish achenes. Brief morphological description of the taxon and a key for determination of the non-yellow flowering species in Bulgaria are provided. Chromosome number of 2n = 2x = 12 is reported. The genome size of the species is in the range 1C = 2.21 – 2.24 pg. Data about the distribution, habitats and populations of the species in the Bulgarian flora is provided. The text is amply illustrated."

13 January 2023

Beharav A. 2022: Lactuca georgica Grossh. is a wild species belonging to the secondary lettuce gene pool: additional evidence, obtained by KASP genotyping. – Genet. Resources Crop Evol. https://doi.org/10.1007/s10722-022-01502-7.

Abstract
"This work evaluated the genetic relationships among 442 single-seed descent accessions, representing eight Lactuca spp., including five wild Lactuca relatives (WLRs) (Lactuca georgica, L. altaica, L. saligna, L. serriola, L. aculeata), L. tuberosa, L. undulata, and the domesticated lettuce, L. sativa, 437 of them representing a core subset of the Institute of Evolution's Wild Lettuce Gene Bank (IoE's WLGB) collection. The analysis was performed by profiling 115 single-nucleotide polymorphism markers with the fluorescent KASP genotyping assay. KASP marker fragments were scored as either allele “A” or allele “B”, and then treated as bi-allelic data, but the dataset also included a relatively high number of U-scores, noting the absence of the specific sequence, that were treated as missing data. Often U-scores were specific for a certain species. Data analysis of the five WLRs showed that allele frequencies of 103 (97.2%) out of 106 differentiating loci varied significantly among the species, where 59.7% of the KASP marker diversity was between species. A neighbor-network analysis involving samples of the five WLRs and a single L. sativa cv. clearly clustered all 430 samples in accordance with their taxonomic determination. These results obtained from multiple complementary analyses of large natural populations and individuals, question the assignment of L. georgica to the primary lettuce gene pool. Together with our previous results obtained by using TRAP markers and hybridization experiments, we conclude that L. georgica is a constituent of the secondary lettuce gene pool. Our analyses shed also light on the proper placement of L. altaica."

11 January 2023

Abid R. & Qaiser M. 2023: Distribution pattern and ecology of Lactuca L. and its allied genera (Lactucineae –Cichorieae) in Pakistan and Kashmir. – Pakistan J. Bot. 55: 159-169.

Abstract
"Distribution pattern and ecological preference for habitat including altitude and soil of Lactuca L. (s. str.) and allied genera viz. Steptorrhamphus, Cephalorhynchus and Melanoseris have been studied in Pakistan and Kashmir. All the taxa belonging to these genera are mostly confined to high mountain ranges in Pakistan and Kashmir. Out of 33 taxa, two taxa belonging to Lactuca are subcosmopolitan. The seven taxa are Irano Turanian (Central Asian) elements of which 2 belong to Lactuca and 2 to Steptorrhamphus and 3 belong to Cephalorhynchus. There are 8 Sino Japanese elements of which one belongs to Lactuca and 7 belong to Melanoseris. However, 3 more taxa viz. M. rapunculoides, M. decipiens var. decipiens and M. decipiens var. multifida are also tentatively recognized as Sino Japanese elements. Beside these 4 taxa are biregional, of which 3 Lactuca species are Mediterranean Irano Turanian elements whereas L. tatarica is an Irano-Turanian Euro Siberian element. There are 13 taxa which are endemic to subendemic, most of these are endemic to Pakistan (Western Himalayas and mostly known from type locality). However, M. gilgitensis seems to be confined to Karakorum Mountains and 2 species viz. M. alii and M. astorensis occur in Western Himalayas and Karakorum. It is difficult to classify these taxa into definite phytogeographical elements until more information is available."

11 January 2023

Makbul S. , Coşkunçelebi K. & Güven S. 2022: Güncel veriler ışığında Scorzonera hieraciifolia (Asteraceae)’nın taksonomik durumunun değerlendirilmesi. – Bağbahçe Bilim Dergisi 9: 21-28.

Abstract
"In this study, the morphology, global threat level and taxonomic status of the halophytic endemic Scorzonera hieraciifolia (Asteraceae) was investigated of new data. Detailed examinations on newly collected samples from the natural areas of the species and the specimens kept in national/international herbaria indicated that S. hieraciifolia is characterized by crisped hairs at the stem base; simple (lanceolate, ovate or elliptical) or compound (pinnate with deeply linear segments) leaves, ovate and corniculate outer phyllaries; glabrous or lanate, 4-6 mm length, verrucose and stipitate achenes. The populations of the species currently detected in salt marsh and steppe areas (10 different areas) are appraised strong, however considering that it could be affected by changes that may occur in saline areas due to global climate changes. It has evaluated in near threatened (NT) category in a global scale. The distribution areas of the species were revealed by evaluating both the literature and current data obtained within the scope of the project supported by TUBITAK. Finally, the taxonomic status of S. hieraciifolia has been clarified by comparing with close (relative) species in terms of morphology and chorology."

3 January 2023

Hatami, E., Khajoei Nasab F. & Safavi S. R.  2022: Conservation priorities and distribution patterns of the genus Pseudopodospermum in Iran. – Iran. J. Bot. 28: 128-138.

Abstract
"The present study provides an overview of geographic distribution patterns as well as the conservation priorities assessment of the genus Pseudopodospermum in Iran, using a GIS framework. A set of geographic distribution data was compiled through field studies, reviews of Flora Iranica, Flora of Iran, and examination of the herbarium specimens deposited at various herbaria. The geographic distribution mappings of the genus were analyzed using ArcView and DIVA-GIS software. High species richness was observed in Kurdo-Zagrosian Province, followed by Fars-Kerman, Atropatanean, and Northern Khorasan Provinces in Irano-Turanian phytogeographical region. Regarding our results, it could be concluded that effective conservation management in Kurdo-Zagrosian Province would lead to protecting a high percentage of Pseudopodospermum species against the threat of extinction."

3 January 2023

Gottschlich G. 2022:  Die Hieracium-Kollektion im Herbarium Tubingense (TUB) – Ergebnisse einer Revision. – Jahreshefte Ges. Naturk. Württemberg 178: 5–31.

Abstract
"The collection of the genus Hieracium (Compositae) of the herbarium of the University of Tuebingen (TUB) with its 3.195 specimens is revised. The collection is valuable because it includes the collections of Josef Alois Froelich, an early monographer of the genus, the herbarium Hochstetter with many specimens collected by the “Botanischer Reiseverein Esslingen” (an association for the purpose of collecting and distributing herbarium specimens), and the herbarium of the monastery of Beuron (ERZ). The collection includes 183 species, 299 subspecies, including 157 type specimens, however many of them only for names of taxa of now irrelevant taxonomic ranks. One new combination (upgrade) is made (Hieracium bifidum subsp. trinitatimontis (Zahn) Gottschl.)."