Astragalus yukselii (Leguminosae), a new species from Turkey (original) (raw)
Related papers
Revision of the Section Hololeuce Bunge of the Genus Astragalus L. (Leguminosae) in Turkey
Turkish Journal of Botany, 2004
We revised the section Hololeuce Bunge of the genus Astragalus L. (Leguminosae) in Turkey. The section used to contain 20 taxa in Turkey, but in this study it has been reduced to 15. A new species (Astragalus dumanii Ekici & Aytaç) has been described. In addition, we concluded that A. vuralii H.Duman & Aytaç, A. cylindraceus DC., A. alindanus Boiss., A. paecilanthus Boiss. & Heldr. and A. squalidus Boiss. & Noë are synonyms of A andrasovszkyi Bornm., A. globosus Vahl, A. hirsutus Vahl, A. sibthorpianus Boiss. and A. amoenus Fenzl respectively. The pollen grains are tricolporate, prolate, subprolate or prolate sphaeroidal and the ornamentation is reticulate.
A new species of Astragalus L (Leguminosae) from south Anatolia
Botanical Journal of the Linnean …, 2001
Botanical Journal of the Linnean Society (2001), 136: 131-135. With 5 figures doi:10.1006/bc~1.2000.0461, available online at httpj//www.idealibrary.com on 10 E 8 ... A new species of Astrugulw L (Leguminosae) from ... ZEKI AYTAC*, MURAT EKICI and LEYLA ...
TURKISH JOURNAL OF BOTANY, 2016
The genus Astragalus L. (Fabaceae) has approximately 3000 taxa around the world. The genus is known to spread vigorously in cold, semiarid, and arid regions of the Old World (approximately 2400 species); in western regions of North America (about 450 species); and especially along the Andean Mountains in South America (about 100 species) (Maassoumi, 1998; Podlech and Zarre, 2013). Astragalus section Hymenostegis was first named by Bunge (1868-1869) in his revision, entitled "Generis Astragali species gerontogeae" under the subgenus Calyphysa. This section was revised by Rechinger et al. (1958) and then was included in the Flora of Turkey (Chamberlain and Matthews, 1970), Flora of USSR (Gontscharov, 1946) and Flora of Iraq (Townsend and Guest, 1974). The latest revision of the section was made by Zarre and Podlech (1996). Astragalus section Macrophyllium Boiss. was described first by Boissier (1872). Species assigned to the section Hymenostegis Bunge are spread throughout western Asia. The origin and the diversification center of this section are in Iran. The section is represented by 12 species (A. uraniolimneus Boiss. has been recorded as a doubtful species) in the Flora of Turkey volume 3 (Chamberlain and Matthews, 1970) and one extra species in volume 11 (Aytaç, 2000), a total of 13 species, four of which are endemic. In 2008, A. expetitus Maassoumi was published as a new record for Turkey by Podlech and Ekici (2008). According to Podlech and Zarre (2013), there are 54 species of sect. Hymenostegis in Iran, 14 in Turkey (including two endemics), three in Armenia, three in Azerbaijan, three in Iraq, and one in Georgia. The number of species assigned to A. sect. Macrophyllium in the flora of Turkey was thought to be nine, five of them being endemic (Chamberlain and Matthews, 1970). However, Zarre (2000) reduced the number of species in Turkey to five and the number of endemic species to one. Karaman and Aytaç (2013) published A. yukselii Karaman & Aytaç within the sect. Macrophyllium and increased the number of species to six, two of which are endemic to Turkey. The main objectives of this study were to clarify the taxonomic status of species belonging to Astragalus sect. Hymenocoleus Bunge, A. sect. Hymenostegis Bunge and A. sect. Macrophyllium Boiss. in Turkey based on field studies and herbarium surveys, and provide their emended descriptions, distributions, and ecology. 2. Materials and methods Since 2011, as part of a revision of the genus Astragalus, extensive field surveys were conducted in Turkey and a large number of specimens were collected. The specimens were all cross-checked with the various Astragalus accounts given in the relevant literature: Flora Uzbekistana
Astragalus unalii (Fabaceae), a new species from Turkey
TURKISH JOURNAL OF BOTANY, 2016
The genus Astragalus L. (Fabaceae) has two phylogenetic branches; one of them is Old World (Asia, Europe, and Africa) and the other one is New World (America). It has about 2000 taxa with 136 sections in the Old World (Podlech and Zarre, 2013). It is represented by 478 taxa in 63 sections and 202 (42%) taxa endemic to Turkey (Aytaç et al., 2012). Three new endemic taxa were added to the Turkish flora in 2012 and 2013 (Taeb and Uzunhisarcıklı, 2012; Dinç et al., 2013; Karaman and Aytaç, 2013) and the number reached 486. The sect. Malacothrix Bunge is represented by 119 taxa in the Old World and 25 in Turkey, of which 12 are endemic (Podlech and Zarre, 2013). According to Taeb and Uzunhisarcıklı (2012), the sect. Malacothrix is represented by 17 taxa and 10 of them are endemic to Turkey. The sect. Malacothrix is common in the Irano-Turanian phytogeographic region and has a systematic problem. According to Chamberlain and Matthews (1970), the sect. Malacothrix is caulescent, otherwise subacaulescent to acaulescent (Podlech and Zarre 2013). It is difficult to describe and decide if it is caulescent or not from herbaria specimens. Interesting specimens of Astragalus were collected from Karadağ (Karaman Province) during the field trips by Ö. Çeçen, H. Mısırdalı, and Ünal in 2013. After closer examination and consultation with the treatment in the Flora of Turkey (Chamberlain and Matthews, 1970) and a taxonomic revision of the genus Astragalus in the Old World (Podlech and Zarre, 2013), it was realized that the specimens are different from the other known Astragalus species. This new species was also cross-checked with those kept in GAZI, ANK, and HUB. 2. Materials and methods The morphological data used in the description of the new species were directly obtained from specimens collected by the authors from Karaman Province and by using a binocular stereoscopic microscope when necessary. The pollen and seed morphology of the new species were examined with scanning electron microscopy (SEM) at GAZI. The pollen was treated with 70% alcohol and then dried before mounting on stubs with gold for the SEM study. The SEM photomicrographs were taken with the JEOL JSM 6060 SEM at Gazi University. The pollen terminology of Punt et al. (1994) was used in the description. Plant names were checked using IPNI (2015). The type specimens of new species are deposited at GAZI, ANK, HUB, KYN, and YILDIRIMLI.
New species of Astragalus (sect. Alopecuroidei: Leguminosae) from Turkey
Botanical Journal of The Linnean Society, 2003
... Dr Zeki Aytaç, with whom we had useful discussions; Dr Murat Ekıcı provided guidance to the relevant literature; the curators of ANK, HUB and GAZI gave permission to examine the specimens; Dr Ernst Vitek, curator of W, sent type specimens, while E, OXF, BM and G sent ...
Contributions to Genus Astragalus L. (Fabaceae) in Turkey
Commagene Journal of Biology
In this study, new arrangements are given for three Astragalus species that are endemic in Turkey. Astragalus physodes subsp. acikirensis (sect. Cystium) was raised to the species level; Astragalus darendensis was reduced to synonym of Astragalus scabrifolius (sect. Incani) and Astragalus tuna-ekimii was reduced to synonym of Astragalus chamaephaca (sect. Macrosemium). Comments are provided on the relevant taxa about their taxonomic positions by examining the recollected samples and the type samples.
Belgian Journal of Botany
A new record of the genus Astragalus L. (A. wagneri Bunge) is given from East Anatolia ; it is compared with the related species A. dictyophysus Reuter ex Bunge. On the other hand, a taxon previously considered in Turkish Flora as a synonym, A. lycaonicus Hub.-Mor. & Reese is reevaluated as a distinct species ; a discussion of the taxonomy of this species and the related A. mesogitanus Boiss. is provided. A full description and an illustration of A. wagneri and a description of A. lycaonicus are given. A distribution map of the four species in Turkey is produced.
Astragalus ansinii sp. nov. (Fabaceae) from Turkey, and a contribution to the sectional taxonomy
Nordic Journal of Botany, 2009
Astragalus ansinii A. Uzun, Terzioğlu & S. Palabaş-Uzun, a new species from northeast Anatolia is described and illustrated. It belongs to Astragalus sect. Hypoglottis Bunge, but the characters in combination do not match completely with this section because the legumes, leaves and calyces are glabrous. This local endemic is known from two adjacent localities with several individuals. Astragalus ansinii is morphologically most similar to A. viridissimus but differs mainly by indumentum, numbers of pairs of leaflets and seed shape together with metric data related to calyx, standard and peduncle. Nuclear ITS was analysed in both species and was found to be highly similar. In addition, the seed morphology, distribution, conservation status and ecology of both species are discussed.
Astragalus nurhakdagensis (sect. Hololeuce Bunge / Fabaceae), a new species from Turkey
TURKISH JOURNAL OF BOTANY, 2021
Introduction Astragalus L., the most abundant member of the Fabaceae family in the world, is known as a taxonomically difficult genus (Podlech, 1986). This genus has a very wide distribution area, including nearly 3000 taxa, extending from Asia and Europe to America (Podlech and Zarre, 2013). In Turkey, it grows mainly in dry habitats on steppes throughout the East and Central Anatolian Regions and includes at least 479 species (Aytaç, 2000; Podlech and Zarre, 2013; Aytaç et al., 2020). The majority of this number (51%) belongs to the Irano-Turanian phytogeographical region (Aytaç, 2000). High mountainous areas with hardto-reach terrain are the habitat of many members of this genus, and these narrow habitats shelter some hitherto unidentified species (Uzun et al., 2009). After the oldworld revision of the genus Astragalus edited by Podlech and Zarre (2013), many new Astragalus species from Turkey have been described for plant science. This means that the semi-isolated Anatolia still serves as the speciation centre of the genus Astragalus. The newly described taxa from Turkey are as follows: