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Trisetum alpestre (Host) P. Beauv. -A. Habit. -B. Transverse section of leaf blade. -C. Portion of sheath, ligule, and blade. -D. Portions of culm and node. -E. Spikelet. -F. Florets. -G. Lower glume, dorsal view. -H. Upper glume, dorsal view. -I. Floret. -J. Lemma, upper part, lateral view. -K. Palea, lateral view. -L. Stamens. -M. Lodicules. -N. Pistil. -O. Caryopsis. A, C-L based on Du Rietz s.n. (UPS-V-644660); B based on BornmüllerBornm¨Bornmüller s.n. (B-10_0526398); N based on Du Rietz s.n. (UPS-V-644660) and BarberáBarber´Barberá et al. 953PB (MA-872340); M based on Du Rietz s.n. (UPS-V-644660), BarberáBarber´Barberá et al. 953PB (MA-872340), BarberáBarber´Barberá & Quintanar 1062PB (MA-876682), and Vestergren s.n. (S); O based on Neyraut s.n. (JE).
Source publication
A taxonomic revision of Trisetum Pers. sect. Trisetum is presented. We include descriptions and synonyms of each taxon from a study of 894 vouchers from 45 herbaria. Detailed morphometric descriptions, illustrations, distribution maps, an identification key, and habitat data are given for each taxon. Morphometric variation of the main characters is...
Contexts in source publication
Context 1
... designated here, W-1885-0002400!; isolectotype, W-0024994!). Figure 3. Herbs (14.4-)21.5-35.7(-53.5) ...
Context 2
... illustrations. Chrtek & Jirásek (1963: 577, fig. 3 griseovirens has geniculate ones. Additionally, our molecular data ( Barberá et al., unpublished) show that both taxa are not closely related. Thus, we do not agree with who states that T. bertolonii and T. griseovirens may constitute an isolated pair of species with an interesting phytogeographical ...
Context 3
... mm. Lemmas (3.2-)4.3-5.1(-7.4) mm; aristules (0.1-)0.3-0.6(-1.4) mm; awn (4.2-)5.6-7(-8.3) mm. Palea length:lemma length ratio of (0.66-)0.73-0.83 (-0.95). Anthers (1-)1.6-2.1(-2.5) mm. Chromosome numbers: 2n 5 12 (Sokolovskaya & Probatova, 1975), 24 (Frey, 1992, 28 (Sorokin, 1990), 36 (Strid & Andersson, 1985). Figures 8A, 9A, 10A, and 11A. 453, fig. 6); Signorini & Ricceri (1996: 219, fig. 1, sub Trisetum corsicum); Gabrielian (2010: 176, tab. 44, 1, ...
Context 4
... propagation by pseudoviviparism has been noted in a specimen of Trisetum flavescens subsp. flavescens collected by de Wilde (de Wilde s.n., L-1346507) (Fig. 13). Until now, this type of propagation has been observed only in T. rigidum (M. Bieb.) Roem. & Schult., T. tamonanteae Marrero Rodr. & S. Scholz, and T. velutinum Boiss., all belonging to Trisetum sect. Acrospelion (Marrero Rodríguez & Scholz, 2013;Barberá et al., 2017a). Trisetum flavescens subsp. griseovirens is separated from ...
Citations
... According to normalized values of variables, agglomerative hierarchical clustering was performed using the function hclust in R to estimate environmental similarities between particular environmental clusters. (Quézel & Santa, 1962;Baum and Rajhathy (1976);Pottier-Alapetite, 1979-1981Navarro & El Oualidi, 1997;Benabid & Cuzin, 1997;Neffati et al., 1999;Ben El Mostafa et al., 2001;Médail et al., 2001;Upson & Jury, 2002;Besnard et al., 2007;Dobignard & Chatelain, 2010-2013Le Floch et al., 2010;El Oualidi et al., 2012;Salemkour et al., 2012;Yahi et al., 2012;Alonso et al., 2013;Hamel et al., 2013;Rankou et al., 2013Rankou et al., , 2015Miara et al., 2014Miara et al., , 2017Miara et al., , 2018Sękiewicz et al., 2015;El Mokni et al., 2015;Bouzabata et al., 2016;Véla et al., 2016;Bouchibane et al., 2017;Ghrabi-Gammar et al., 2017;Barberá et al., 2018;Bouchet et al., 2018;Bouahmed et al., 2019;El Mokni & Peruzzi, 2019;Lauterbach et al., 2019;Moukrim et al., 2019;Djelid et al., 2020;Gabriel et al., 2020;Taib et al., 2020). The taxonomic nomenclature was revised according to "Index synonymique de la flore d'Afrique du Nord" (Dobignard & Chatelain, 2010-2013. ...
Clustering methods based on environmental variables are useful in the planning of conservation strategies for species and ecosystems. However, there is a lack of work on the regionalization of the vast space of North Africa and the distribution of plant species. The current lists of endemic plants are focused mostly on an occurrence at the country level and not on regions with different conditions. The aim of this work was to lay out an environmental scheme for northwest Africa and to collect data about the occurrence of endemic plants in this area. Clustering with 12 of 33 tested environmental rasters was performed to divide the Maghreb into environmental clusters. Then, a list of 1618 endemic plant taxa (1243 species and 375 subspecies) was prepared and their distribution in estimated environmental clusters was examined. Eleven clusters with different conditions were estimated. The main drivers of regionalization were temperature amplitude, precipitation seasonality, and precipitation of the warmest quarter. According to the occurrence of endemic plants, northwest Africa may be divided into three zones: Atlas, Mediterranean (two environmental clusters), and southern zone (eight environmental clusters). The presented results provide a good basis for understanding the spatial patterns of the Maghreb, including its environment and species diversity. A designed list of endemic plant species together with environmental data may facilitate the planning of future research in north Africa and arranging methods of biodiversity protection.
... Recently, Barberá et al. (2017Barberá et al. ( , 2019Barberá et al. ( , 2020 transferred some groups of Trisetum to the genus Koeleria based on morphological and molecular evidence, and proposed a new genus (Sibirotrisetum Barberá, Soreng, Romasch., A. Quintanar & P.M. Peterson) while resurrecting another (Acrospelion Besser) to further reflect the relationships in Aveninae. Here we transfer Trisetum glaciale to Acrospelion based on the results of Barberá et al. (2017Barberá et al. ( , 2018Barberá et al. ( , 2020. ...
In this study, we analyzed 313 plastid genomes (plastomes) of Poaceae with a focus on expanding our current knowledge of relationships among the subfamily Pooideae, which represented over half the dataset (164 representatives). In total, 47 plastomes were sequenced and assembled for this study. This is the largest study of its kind to include plastome-level data, to not only increase sampling at both the taxonomic and molecular levels with the aim of resolving complex and reticulate relationships, but also to analyze the effects of alignment gaps in large-scale analyses, as well as explore divergences in the subfamily with an expanded set of 14 accepted grass fossils for more accurate calibrations and dating. Incorporating broad systematic assessments of Pooideae taxa conducted by authors within the last five years, we produced a robust phylogenomic reconstruction for the subfamily, which included all but two supergeneric taxa (Calothecinae and Duthieeae).
We further explored how including alignment gaps in plastome analyses oftentimes can produce incorrect or misinterpretations of complex or reticulate relationships among taxa of Pooideae. This presented itself as consistently changing relationships at specific nodes for different stripping thresholds (percentage-based removal of gaps per alignment column). Our summary recommendation for large-scale genomic plastome datasets is to strip alignment columns of all gaps to increase pairwise identity and reduce errant signal from poly A/T bias. To do this we used the “mask alignment” tool in Geneious software. Finally, we determined an overall divergence age for Pooideae of roughly 84.8 Mya, which is in line with, but slightly older than most recent estimates.
... Numerous names of taxa published by Zapałowicz, especially those based on material from the territory of present Ukraine, have been already lectotypified (e.g. Ziman et al. 2015, Optasyuk & Shevera 2011, Barberá et al. 2018. Paczoski (1927: 59) accepted Zapałowicz's infraspecific taxa, except one (R. ...
Lectotypes for five infraspecific names of Ranunculus ficaria (currently known as Ficaria verna s.str.) (Ranunculaceae) described by Hugo Zapałowicz are proposed. Four of these names are established synonyms of Ficaria verna s.str. Ranunculus ficaria var. bessarabicus is considered to be a new synonym of F. grandiflora, which is newly recorded for Moldova. Revised syntypes represent three species of Ficaria: F. verna s.str., F. grandiflora, and F. calthifolia. The exact dates of publication for parts 12 and 13 of Zapałowicz’s work entitled Conspectus florae Galiciae criticus published in the journal Rozprawy Wydziału Matematyczno-Przyrodniczego Akademii Umiejętności, Seria III, Dział B. Nauki Biologiczne are corrected based on the publisher’s catalogue.
... Trisetum Pers. [Poaceae (R. Br.) Barnhart: subfamily Pooideae Benth.], the yellow oatgrasses [type = Trisetum flavescens (L.) Pers.] traditionally comprises approximately 70 species inhabiting temperate and cold regions, mainly in the northern hemisphere and in South America, Australia, and New Zealand (Clayton & Renvoize, 1986;Barberá et al., 2017aBarberá et al., , 2017bBarberá et al., , 2018a. The morphological characteristics defining the genus are perennial habit, two to five-flowered spikelets, upper glume sub-equal or shorter than the spikelet, the bifid, usually dorsally-awned lemmas, gaping, scareous to hyaline paleas, usually glabrous ovaries, and soft, sometimes liquid endosperm. ...
... Recent infrageneric classifications of Trisetum by Barberá et al. (2017aBarberá et al. ( , 2017bBarberá et al. ( , 2018a accepted four sections. Trisetum sect. ...
... (±20 species) and T. sect. Trisetum (14 species) are distributed worldwide (Finot et al., 2004(Finot et al., , 2005a(Finot et al., , 2005bFinot, 2010;Barberá et al., 2018a). The Mexican and Central American T. subg. ...
To investigate the evolutionary relationships among the species of Trisetum and other members of subtribe Koeleriinae a phylogeny based on DNA sequences from four gene regions (ITS, rpl32‐trnL spacer, rps16‐trnK spacer, and rps16 intron) is presented. The analyses, including type species of all genera in Koeleriinae (Acrospelion, Avellinia, Cinnagrostis, Gaudinia, Koeleria, Leptophyllochloa, Limnodea, Peyritschia, Rostraria, Sphenopholis, Trisetaria, Trisetopsis, Trisetum), along with three outgroups, confirms previous indications of extensive polyphyly of Trisetum. Here we focus on the monophyletic Trisetum sect. Sibirica clade that we interpret here as a distinct genus, Sibirotrisetum gen. nov. We include a description of Sibirotrisetum with the following seven new combinations: Sibirotrisetum aeneum, S. bifidum, S. henryi, S. scitulum, S. sibiricum, S. sibiricum subsp. litorale, and S. turcicum; and a single new combination in Acrospelion: A. distichophyllum. Trisetum s.s. is limited to 1, 2 or 3 species pending further study. This article is protected by copyright. All rights reserved.
... Trisetum Pers. [Poaceae (R. Br.) Barnhart: subfamily Pooideae Benth.], the yellow oatgrasses [type = Trisetum flavescens (L.) Pers.] traditionally comprises approximately 70 species inhabiting temperate and cold regions, mainly in the northern hemisphere and in South America, Australia, and New Zealand (Clayton & Renvoize, 1986;Barberá et al., 2017aBarberá et al., , 2017bBarberá et al., , 2018a. The morphological characteristics defining the genus are perennial habit, two to five-flowered spikelets, upper glume sub-equal or shorter than the spikelet, the bifid, usually dorsally-awned lemmas, gaping, scareous to hyaline paleas, usually glabrous ovaries, and soft, sometimes liquid endosperm. ...
... Recent infrageneric classifications of Trisetum by Barberá et al. (2017aBarberá et al. ( , 2017bBarberá et al. ( , 2018a accepted four sections. Trisetum sect. ...
... (±20 species) and T. sect. Trisetum (14 species) are distributed worldwide (Finot et al., 2004(Finot et al., , 2005a(Finot et al., , 2005bFinot, 2010;Barberá et al., 2018a). The Mexican and Central American T. subg. ...
Typescript (photocopy). Thesis (Ph. D.)--New Mexico State University, 1986. Includes vita. Includes bibliographical references (leaves 200-210).
The current paper presents a nomenclatural checklist for vascular plants validated being (sub)endemic to and present in the flora of the Ukrainian Carpathians. This checklist is a part of the work targeted on an inventory of endemic plants distributed in the Ukrainian Carpathians. It is mainly based on the analysis of primary sources (i.e. original protologues and monographic works), but also uses the data provided in the recent online taxonomic aggregators, such as the Global Biodiversity Information Facility (GBIF), Catalogue of Life (CoL), Plants of the World Online (POWO), Euro+Med PlantBase, World Flora Online (WFO) and others. Over 7,000 specimens deposited in the leading Ukrainian herbaria were also revised and used as a supporting data source during the work on the checklist.
The checklist provides a revised nomenclature, including corrections on publication dates, rediscovered taxonomic protologues, corrected authorships and revised taxonomic status for (sub)endemic (sub)species of vascular plants occurring in the Ukrainian Carpathians. It contains 1,101 names, from which 78 species and subspecies have been accepted as valid and 1023 species and infraspecific taxa are provided as synonyms. It is completed with critical notes on the nomenclature of problematic taxa and brief annotations regarding their distribution in the Ukrainian Carpathians, indicating the endemicity range and sozological status for all analysed (sub)species.
The current checklist is linked with the GBIF taxonomic backbone, provides notes on detected issues and primarily focuses on its update and correction of the nomenclatural issues and taxonomic inconsistencies, but also aims at discussing issues in other popular taxonomic databases.
Sabulina pauciflora is proposed as a new combination to comply with a recent revision of the genus Sabulina .
The nomenclatural checklist for vascular plants validated and processed as those that are (sub)endemic and present in the flora of the Ukrainian Carpathians is represented. This checklist is a part of work targeted on an inventory of endemics distributed in the Ukrainian Carpathians. It is mainly based on the analysis of primary sources (i.e., original protologues and monographic works), but also used the data provided in the recent online taxonomic aggregators such as GBIF, CoL, POWO, Euro+Med PlantBase, World Flora, and other. Over 7,000 specimens deposited in the leading Ukrainian herbaria during the work were also revised and used as a data source.
The checklist provides revised nomenclature, including corrections on publication dates, rediscovered taxonomic protologues, corrected authorships, and revised taxonomic status for (sub)endemic (sub)species of vascular plants occurring in the Ukrainian Carpathians. It contains 1061 names, from which 78 species and subspecies have been accepted as valid and 983 species and infraspecific taxa provided as synonyms. It is completed with critical notes on the nomenclature of problematic taxa and brief annotations regarding their distribution in the Ukrainian Carpathians, indicating the endemicity range and sozological categories for all analyzed (sub)species.
The current checklist is linked with GBIF taxonomic backbone, provides notes on detected issues, and primarily focuses on its update and correction but also points to detected issues in other popular taxonomic databases.
The new combination, Sabulina pauciflora , comb. nov. instead of Minuartia pauciflora is proposed to compile with a recent vision on the taxonomy of the genus Sabulina .
Greece is known to be a biodiversity hotspot. Though the plant diversity of Peloponnisos, the southernmost part of the Greek mainland, has been well-studied during the past 200 years, there are still gaps in our knowledge. To this end, the flora of the neighboring mountains Oligirtos and Farmakas was investigated, with a total of 740 and 762 taxa (species and subspecies) recorded, respectively, of which 635 and 756 for the first time. Ten species or subspecies were previously not known from Peloponnisos. Endemics correspond to 10.2% and 8.9% of the total flora and are predominately hemicryptophytes and entomogamous. Almost half of them produce capsules. The number of endemics per 2 × 2 km grid cell reveals that their highest number is found in areas of high elevation, and corresponds to habitats above the tree line, or to the limestone cliffs vegetation. No less than 62 endemic plant taxa of Mt. Oligirtos and 58 of Mt. Farmakas are threatened. A comparison of Mts. Oligirtos and Farmakas with five neighboring mountains shows that elevation correlates positively with the number of regional or bi-regional endemics but not with local or narrow endemics. The importance of mountainous regions for plant conservation is stressed.
A checklist of the grasses of India is presented, as compiled from survey of all available literature. Of the twelve subfamilies of grasses, ten are represented in India. Most subfamilies have been examined by taxonomic experts for up-to-date nomenclature. The list includes 1506 species plus infraspecific taxa and presents information on types, synonyms, distribution within India, and habit. Twelve new combinations are made, viz. Arctopoa tibetica (Munro ex Stapf) Prob. var. aristulata (Stapf) E.A. Kellogg, comb. nov. ; Chimonocalamus nagalandianus (H.B. Naithani) L.G. Clark, comb. nov. ; Chionachne digitata (L.f.) E.A. Kellogg, comb. nov. ; Chionachne wallichiana (Nees) E.A. Kellogg, comb. nov. ; Dinebra polystachyo s (R. Br.) E.A. Kellogg, comb. nov. ; Moorochloa eruciformis (Sm.) Veldkamp var. divaricata (Basappa & Muniv.) E.A. Kellogg, comb. nov. ; Phyllostachys nigra (Lodd. ex Lindl.) Munro var. puberula (Miq.) Kailash, comb. & stat. nov. ; Tzveleviochloa schmidii (Hook. f.) E.A. Kellogg, comb. nov. ; Urochloa lata (Schumach.) C.E. Hubb. var. pubescens (C.E. Hubb.) E.A. Kellogg, comb. nov. ; Urochloa ramosa (L.) T.Q. Nguyen var. pubescens (Basappa & Muniy.) E.A. Kellogg, comb. nov. ; Urochloa semiundulata (Hochst. ex A. Rich.) Ashalatha & V.J. Nair var. intermedia (Basappa & Muniy.) E.A. Kellogg, comb. nov.
Work on the catalogue of type specimens of vascular plants deposited in the KRAM herbarium has highlighted uncertainties and errors in references to place of valid publication of numerous taxa described by Hugo Zapałowicz in his Conspectus florae Galiciae criticus – Krytyczny przegląd roślinności Galicyi (1904–1914). Zapałowicz published his work in an excerpt series, a serial publication and a multi-volume book, with much duplication amongst these three different forms. Despite the importance of this work, no studies have clarified the dates of publication of its various parts, as relevant to the nomenclature of numerous new taxa of Central European vascular plants described therein: 94 species and hybrids, 10 subspecies and more than 2000 other infraspecific taxa. Here, the publication dates of the component parts of Zapałowicz’s work are clarified and discussed. Archival sources that made it possible to determine publication dates of these works are described in detail.
