The first record of Astragalus sect. Aegacantha (Fabaceae) in Iran

Abstract

M. 2005. The first record of Astragalus sect. Aegacantha (Fabaceae) in Iran. -Nord. J. Bot. 23: 541-544. Copenhagen. ISSN 0107-055X.A new distinct population of Astragalus leiosemius. hitherto unknown to science, is reported for the first time from the eastern Alborz mountains in the Irano-Turanian part of Iran, at an altitude of 2400 m, far disjunct (ca. 800 km) from the populations at the Asia media and Afghanistan. The new taxon is described and illustrated as Astragalus leiosemius subsp. sabzevarensis. This orophilous and tragachantic plant belongs to A . sect. Aegacantha. On the basis of some important data on morphology, ecology and chorology, the new taxon is reported and its affinities and differences with regard to close taxa are presented. A. sect Aegacantha is recorded for the first time from the eastern part Iran.

Comparative taxonomic investigation and its systematics application in Astragalus L. sect. Aegacantha Bunge (Fabaceae-Galegeae) from Pakistan; A phylogenetic approach

“…There was limited anatomical studies have been subjected on genus Astragalus by only few researchers (Mehrabian et al 2007;Karamian and Ranjbar 2003). The spine anatomical characters have been used in the identification of species and also useful in species circumscription within thorny Astragalus sections (Engel 1991(Engel , 1992Pirani et al 2006).…”

“…The genus Astragalus L. (Fabaceae) is generally regarded as largest natural group in flowering plants with an estimated of 3156 species including in 255 sections (Maassoumi 1998;Karamian and Ranjbar 2003;Khan et al 2022b). The species of Astragalus are very extensive and polymorphic in morphology (Chaudhary and Rana 2008).…”

“…Since then, several other authors revised genus Astragalus at infrageneric to infraspecific level on the basis of morphological characters with emphasis of indumentum type either basifixed or medifixed hairs (Podlech and Zarre 2013;Podlech 2001;Maassoumi et al 2016). The subgenus Phaca consists of 45 sections including 725 species (Maassoumi 1998;Osaloo et al 2003).The section Aegacantha was artificially placed in subgenus Phaca Bunge (Bunge 1868(Bunge , 1869Karamian and Ranjbar 2003). According to recent classification section Aegacantha, put in its present position (Podlech and Zarre 2013).…”

Contribution to the pollen morphology of Astragalus L. section Aegacantha Bunge (Galegeae-Fabaceae) and its systematic significance

“…The calyx is tubular, ruptured by fruit, and standard emarginate; the corolla is pale yellow, often turning reddish (Karamian and Ranjbar 2005). The legumes are ovaloid or semi-ovaloid, coriaceous, indurated, incompletely to completely bilocular (with a narrow septum projecting as a flange from the ventral suture) and dehiscent by contractile leathery valves with few seeds (Ali 1977;Maassoumi 1998;Karamian and Ranjbar 2003).…”