Literature Archive: 2020 | 2021 | 2022 | 2023 | 2024
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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21 March 2024
Efimov P. G. 2023: Taraxacum erythroboreale (Asteraceae), a new species of presumably intersectional hybrid nature with broad distribution in North European Russia (Taraxacum Notulae Rossiae Boreali Europeae II). – Novosti Sist. Vyssh. Rast. 54(e12): 1–11.
Abstract
"Taraxacum erythroboreale Efimov, a new apomictic species, is described and illustrated. It occurs in Russia (North of the European part), in the Murmansk and Vologda regions, in the Komi Republic, being locally very abundant. It occupies mainly dry sandy roadsides and other similar ruderal places, and seems benefiting from the anthropogenic disturbance of the land. The new species may belong either to the section Erythrosperma (H. Lindb.) Dahlst., or have originated from the hybridization between this section and some species of an Asiatic section like Stenoloba Kirschner et Štěpánek or Dissecta (Soest) R. Doll. The new species displays rather wide morphological polymorphism as to the presence/absence of purplish achene pigmentation, shape of outer phyllaries, corniculation of phyllaries, and in some other traits."
21 March 2024
Mateo Sanz G., Egido Mazuelas F. del & Gómiz García F. 2023: Aportaciones al conocimiento del género Hieracium l. en España, xxxvi. – Fl. Montiber. 85: 33–41.
Abstract
"Several new species of Hieracium L. (Compositae, Lacutuceae) are here described from Spain and for a second group new citations are provided."
18 March 2024
Štěpánek J., Kirschner J. & Uhlemann I. 2023: A survey of the oreophytic species of Taraxacum in the Carpathians reveals a very limited overlap with the flora of the Alps. – Preslia 95: 475–591.
Abstract
"The genus Taraxacum in the subalpine and alpine areas in the Carpathians (Poland, Slovakia, Ukraine, Romania, montane habitats in Czechia) is revised using newly collected material and old herbarium collections. Four Taraxacum sections are recognized, viz. T. sect. Crocea (= T. sect. Fontana), T. sect. Alpina, T. sect. Rhodocarpa (= T. sect. Alpestria) and a newly described T. sect. Oreodoxa Štěpánek et Kirschner, a peculiar monotypic taxon with a single species, T. incredibile, confined to limestone ranges in northern Romania. There are 16 species in Slovakia, 7 in Poland, 5 in Ukraine and 11 in Romania; out of the 25 species adopted after the revision, 10 are newly described and 14 occur only in a single country. The study of the Taraxacum venustum group in the Carpathians revealed a new Romanian species, which is described, and another new species in the Western Alps, which in the present paper is compared with the similar Bulgarian species, T. humifusum of T. sect. Bulgarica. Taraxacum venustum sensu lato is reported from the Eastern Carpathians, but further study is needed. Three species known from the Carpathians, T. crocelliforme, T. pawlowskii and T. hercynicum, are also recorded in the Alps. Endemism of dandelions in the Carpathians is analysed and compared with published data for other Carpathian plants and the neighbouring regions. Twenty-one species (of 25) are confined to the Carpathians, 17 are endemic to a single Carpathian region and most of them to the Western Carpathians. The main literature sources of Taraxacum records from the Carpathians are analysed in detail; numerous published records of Alpine species in the Carpathians were rejected. The seven names published by R. Doll from Slovakia were thoroughly revised, with four names accepted and three synonymized. Five names are lectotypified."
18 March 2024
Rich T. C. G. & Warren J. K. 2023: Hieracium elizabethae-reginae (Asteraceae), a new English species of hawkweed named after Her Majesty Queen Elizabeth II. – Brit. Irish Bot. 5: 252-258.
Abstract
"Hieracium elizabethae-reginae sp. nov. is named in honour of Her Majesty Queen Elizabeth II. It is a member of Hieracium section Hieracium distinguished by its glaucous rosette leaves, partly-stylose capitula and the absence of simple hairs on the bracts. About 500 plants are known in two sites on calcareous grassland in Gloucestershire, England. It is IUCN Threat Category ‘Endangered’."
18 March 2024
Rastegar A., Ghaderi H., Maroofi H., Advay M., Jalili A. & Jamzad Z. 2023: The conservation status of Scorzonera nivalis, an endemic species of Iran. – J. Iran Nature 8(4): 135–140.
Abstract
"Scorzonera nivalis Boiss. & Hausskn. (Asteraceae) is one of the narrowest endemic species in Iran's flora, restricted to the Schahu and Avroman Mountains. IUCN criteria and GeoCAT data (EOO= 339.736 km2; AOO= 4.41 km2) classify this species as Critically Endangered (CR). This species was not collected after it was introduced 156 years ago by Boissier and Haussknecht until 2013 when it was collected for the second time from Schahu Mountain. Later studies conducted in Kurdistan Province added other populations from the Avroaman Mountains to the samples of this valuable species. The most efficient way to protect this species is to help its propagation through seeding and sowing in other similar habitats in the Schahu and Avroman Mountains. Introducing Schahu Mountain as a protected area by the Department of Environment of Iran, preventing livestock from entering the top of the mountain, collecting seeds, and storing them in the Natural Resources Gene Bank of Iran are other effective ways to protect this valuable reserve."
18 March 2024
Safavi S. R., Rad M. A., Jamzad Z. & Jalili A. 2023: The conservation status of Scorzonera alborzensis Safavi & Amini Rad, an endemic species from Iran. – J. Iran Nature 8(3): 107–112.
Abstract
"Scorzonera alborzensis is one of the exclusive and rare species collected and reported from only one place in the country (Mazandaran province: between Baladeh and Nour, Siahsang mountains, 3023 m). The genus Scorzonera L. belongs to the Asteraceae family and has 19 endemic species in Iran. Based on the guidelines of the International Union for Conservation of Nature (IUCN), Area of Occupancy (AOO), Extent of Occurrence (EOO), habitat quality, population size, and natural reproduction of the species were evaluated. According to the field studies, the area of occupancy (AOO) and extent of occurrence (EOO) were estimated at an area of 0.01 km2 (only one locality), and the number of adult individuals is between 15 and 20, with a very low regeneration rate. Therefore, according to our studies, Scorzonera alborzensis is defined as a Critically Endangered (CR) species. Road construction and grazing in this species' habitat are among the life-threatening factors. As a result, the Natural Resources and Watershed Organization needs to protect this species' habitat. Further, ex-situ conservation must be achieved by preserving seeds in the Natural Resources Seed Bank, growing seeds, and cultivating seedlings in Iran's National Botanical Garden."
24 January 2024
Gottschlich G., Feulner M. & Philipp C. 2023: Hieracium obscuratum subsp. balmense, eine neue Hieracium-Sippe aus dem Nationalpark Berchtesgaden (Bayern, Deutschland). – Ber. Bayer. Bot. Ges. 93: 160–164.
Abstract
"Hieracium obscuratum subsp. balmense, a new subspecies from Berchtesgaden National Park (Bavaria, Germany) is described and illustrated. A morphological comparison with other known subspecies is provided."
24 January 2024
Drenckhahn D., Gottschlich G. & Zonneveld B. 2023: Neubeschreibungen und 2C-Werte von Pilosella macranthela subsp. silvae-pici (Spessart-Mausohrhabichtskraut) und Pilosella ottonis (Otto-Mausohrhabichts-kraut) mit einer Übersicht über das Vorkommen von P. macranthela-Taxa in Bayern. – Forum Geobot. 11: 21–34.
Abstract
"A pentaploid taxon from the Pilosella macranthela group was discovered in Lower Franconia/Bavaria which is newly described here as P. macranthela subsp. sylvae-pici. It grows mainly in the Bavarian Bunter Spessart and occurs with three small, isolated stands also in the limestone area of the Main valley and Tauber area. Its habit of growth is intermediate between the furcata and laxicephala types of Pilosellae with epigeal and partly hypogeal stolons and a tendency to form clusters. The upper and lower surfaces of the rosette leaves have stellate hairs. The peduncles and the phyllaries are densely covered with dark glandular hairs with yellowish glandular heads. The lateral teeth of the ligules often are separated by incisions. A tetra- und pentaploid transitional taxon between P. macranthela subsp. sylvae-pici and P. officinarum is described as P. ottonis. P. ottonis is tetra- and pentaploid with up to 7 capitula. It is densely covered with dark stalk glands on phyllaries and resembles forms of P. acutifolia in habit. The phyllaries of P. ottonis are covered with numerous epidermal papillae with adiameter of about 10–20 μm and in this aspect resemble P. macranthela subsp. sylvae-pici and P. glomerata. However, in P. officinarum epidermal papillae are absent. Plants of genetically heterogeneous tetra- and heptaploid P. macranthela have been found outside the Spessart as spontaneous hybrids between P. glomerata and P. officinarum and also occur sporadically without P. glomerata in the vicinity."
23 January 2024
Uhlemann I. 2023: Taraxacum section Crocea (= Taraxacum section Fontana, Asteraceae, Crepidinae) in the European Alps. – Neilreichia 13/14: 195–226.
Abstract
"Taraxacum sect. Crocea (the correct name for the taxon formerly called T. sect. Fontana) comprises putative glacial relicts restricted to the European Alps, possibly the Carpathians (not recorded yet), and south-eastern European mountains. In this paper, six species of this section are recognised in the Alps: T. absurdum, T. fontanosquameum, T. fontanum, T. insubricum, T. jacobianum spec. nova and T. pseudoboreigenum. Four names are relegated to synonymy: T. cochleatophyllum, T. fontanicola, T. graiense and T. pseudofontanum. Further names formerly associated with T. sect. Crocea in the Alps are excluded, synonymisised with species from other sections or treated as nomina dubia or species incertae sedis: T. aestivum, T. aurantellum, T. binilobatum, T. corsicum, T. croceicarpum, T. crocellum, T. fontaniforme, T. magnopyramidophorum, T. malyi, T. obovatifolium, T. peralatum, T. pohlii, T. pomposum, T. renosense, T. rufocarpum, T. senile and T. silvicola. For each Alpidic T. sect. Crocea-species, a type is designated (where still necessary) and a detailed description, a comparison with relatives, a list of specimens studied by the author, information on distribution and ecology, and drawings and photographs of relevant characters are given. A determination key for all species of the section in the area under study is provided."
23 January 2024
Gottschlich G. 2023: Hieracium sadnigense, spec. nov., nebst Anmerkungen zur Hieracium-Sammlung des Salzburger Universitätsherbariums (SZU). – Neilreichia 13/14: 285–291.
Abstract
"Hieracium sadnigense ("lachenalii–picroides"), a new Hieracium species from the Sadnig Group, Carinthia, Austria, is described and illustrated. The species was detected while revising the Hieracium specimens in the Herbarium of the University of Salzburg (SZU). A survey of this collection, most of which was collected by the late Prof. Dr. Heinrich Wagner (1916–1993), is made."
5 January 2024
Sakkir S., Güzel M. E., Al Mansouri M. & Soora P. 2023: Contribution to the knowledge of Lactuca L. (Asteraceae) in the United Arab Emirates. – Biodiversity: Res. Conservation 71: 9–14.
Abstract
"We present new data on the distribution of Lactuca species and review the currently documented data on the genus in the United Arab Emirates (UAE). L. serriola L. is recorded for the first time from Abu Dhabi Emirate. L. dissecta D. Don, L. serriola, and L. orientalis (Boiss.) Boiss. were already reported from other emirates. Detailed morphological descriptions, types, distribution maps, and a key to Lactuca species in the UAE are included. We also highlight the deficiency of the documentation with herbarium specimens in the UAE."
20 December 2023
Ford M. 2023: A new population of the native oxtongue Picris angustifolia DC. subsp. merxmuelleri Lack et S.Holzapfel. – Trilepidea, Newsletter of the New Zealand Plant Conservation Network 236: 6–9.
[On the occurrences and reports in literature of Picris angustifolia subsp. merxmuelleri in New Zealand.]
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.
Methods: Our large common-garden experiment measured traits in growth, development, physiology, and reproductive fitness. We analyzed trait differences between allopolyploids and their parental species, and between synthetic and natural allopolyploids.
Results: As in many polyploids, the allopolyploid species had some larger physical traits and a higher capacity for photosynthesis than diploid species. Reproductive fitness traits were variable and inconsistent. Allopolyploids had intermediate phenotypes compared to their diploid parents in several traits, but patterns of variation often varied between allopolyploid complexes. Resynthesized and natural allopolyploid lines generally showed minor to nonexistent trait differences.
Conclusions: In Tragopogon, allopolyploidy results in some typical phenotypic changes, including gigas effects and increased photosynthetic capacity. Being polyploid did not produce a significant reproductive advantage. Comparisons between natural and synthetic T. mirus and T. miscellus are consistent with very limited, idiosyncratic phenotypic evolution following allopolyploidization."
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."
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."
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 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."
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."