Astragalus topalanense (Fabaceae), a new species from Turkey

Abstract

Introduction In the Flora of Turkey, Fabaceae (Leguminosae) is one of the largest families in terms of species number, after Asteraceae (Vural et al., 2008). It includes annual or perennial plants, herbs, trees, and shrubs. Fabaceae is recognized by usually stipulate, bipinnate, simply pinnate, digitate, trifoliolate, or simple leaves; actinomorphic or zygomorphic, hypogynous or sometimes perigynous flowers; and legume or lomentum as fruits (Davis et al., 1970). The genus Astragalus L. (Fabaceae) is one of the largest genera of vascular plants, with 2500-3000 taxa and more than 250 sections (Karamian and Ranjbar 2005). The genus Astragalus belongs to the tribe Astragaleae of Papilionoideae in Fabaceae. It is distributed mainly in arid and semiarid mountainous regions of the northern hemisphere and South America. The genus is most diverse in southwest Asia (Akpulat and Çelik, 2007). Iran, with 750 species, is one of the centers of diversity of the genus (Ghahremani-nejad, 2005). The genus is divided into 64 sections and represented by 475 taxa including 202 endemic species in the Flora of Turkey, with the majority occurring in the Irano-Turanian region (Karaman Erkul et al., 2015). The new species belongs to the sect. Malacothrix Bunge and seems to be distinct among the Turkish species. According to Podlech and Zarre (2013), the sect. Malacothrix is represented by approximately 25 species in Turkey and, in this section, 12 species are endemic to Turkey. Astragalus sect. Malacothrix, represented by 90 species in Iran, is one of the largest sections within the genus (Podlech et al., 2010). Bunge (1868) placed the section together with seven other sections into the subgenus Hypoglottis Bunge. All members of the subgenus share similar morphological characters such as dense capitate or spike-like inflorescences (Ranjbar and Mahmoudian, 2012). This new species was collected from Bingöl Province, East Anatolia in Turkey between 2012 and 2014. The holotype specimen was deposited at Mustafa Kemal University in Hatay, Turkey, while isotypes were deposited at Bingöl University herbarium in Bingöl and ANK herbarium in Ankara. The specimens of the new species were cross-checked with material housed at various herbaria (ANK, GAZI). Consulted keys (Chamberlain and Matthews, 1969; Podlech, 1999; Podlech and Zarre, 2013) failed to identify this specimen. The studies showed that these specimens are representatives of a species new to science (Figures 1A and 1B). 2. Materials and methods The specimens reported here were collected from Bingöl Province (Turkey). The collected specimens were dried and flowers preserved in 70% ethanol for further studies. The flower and leaf measurements were performed on fresh and alcohol preserved materials. The pollen grains were measured under light microscopy and from nonacetolyzed samples, and prepared according to the Wodehouse method (Wodehouse, 1935). The long axis

Accumulation of ash and photosynthetic pigments in the raw material of Astragalus

“…is one of the largest genera of vascular plants with approximately 2500-3000 species. It is distributed mainly in arid and semiarid mountainous regions of the northern hemisphere and South America (Ilçim & Behçet, 2016). Certain Astragalus species are used in folk medicine as cardiovascular, antihypertensive, diuretic, choleretic remedies (Lysiuk & Darmohray, 2016).…”

Türkiye’deki Dokuz Astragalus L. Taksonu Üzerine Karyalojik Çalışmalar

“…Fabaceae is the second largest flowering plant family with 1013 species belonging to 71 genera in Turkey (Erik and Tarıkahya, 2004;Toksoy et al, 2015). İlçim and Behçet (2016) stated that Astragalus is the largest genus of vascular plants with more than 250 sections and 2500-3000 taxa. It is divided into 64 sections and represented by 475 taxa including 202 endemic species in the Flora of Turkey (İlçim and Behçet, 2016).…”

“…İlçim and Behçet (2016) stated that Astragalus is the largest genus of vascular plants with more than 250 sections and 2500-3000 taxa. It is divided into 64 sections and represented by 475 taxa including 202 endemic species in the Flora of Turkey (İlçim and Behçet, 2016). The genus is most widespread in southwest Asia (Akpulat and Çelik, 2007).…”

Türkiye’den İki Yeni Dikenli Dianthus Türü (Caryophyllaceae) ve Bazı Yakın Akraba Türlerin Taksonomisine Katkılar

“…The genus Dianthus L. has approximately 600 species that mostly grows in Asia and Europe; there are 78 species in Turkey (Dequan and Turland, 2001;Gemici and Leblebici, 1995;Vural, 2008;Yılmaz et al, 2011;İlçim et al, 2013;2017).…”