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February 2012
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44 Reads
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6 Citations
Feddes Repertorium
A revision of the 17 annual species of Astragalus L. occurring in Turkey is presented. A determination key is provided together with complete descriptions, distribution maps, illustrations of diagnostic floral characters, notes on geography and ecology and an enumeration of all Turkish specimens located (© 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
March 2009
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77 Reads
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1 Citation
Novon A Journal for Botanical Nomenclature
Astragalus ghanbarianii Maassoumi, Podlech & Zarre and A. nervifolius Maassoumi, Podlech & Zarre, two new species of Astragalus sect. Campylanthus Bunge (Fabaceae) from Iran, are described and illustrated. Because of the considerable changes in the delimitation of this section, a new diagnostic key to its species is presented. Moreover, A. susianus Boissier subsp. sericeus Tietz is reduced to synonymy of A. chalaranthus Boissier & Haussknecht.
April 2006
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193 Reads
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20 Citations
Flora
Cross sections of petioles in 35 species of Astragalus mainly belonging to sect. Rhacophorus were studied for circumscription of natural groups within the section and reliable characters in delimiting polymorphic species. The following characters were determined to be informative: number of parenchymatous cell layers in pith, diameter of median sclerenchymatous vascular bundle sheath and diameter of the cross section as whole. Astragalus amblolepis, A. andalanicus, A. floccosus, A. meyeri, A. paralipomenus, A. pycnocephalus and A. stenolepis are characterized by large pith and relatively large sclerenchymatous bundles. Most of these species belong to sect. Rhacophorus s. str., comprising large-flowered species as circumscribed by some taxonomists, but few species of sects. Stenonychium and Platonychium also show these features. Our results show that spine anatomy is not useful for circumscribing sections in spiny Astragalus, but applicable in delimiting small natural groups and circumscribing species.
January 2005
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37 Reads
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4 Citations
Annales Botanici Fennici
Astragalus assadabadensis F. Ghahremani. & Podlech, endemic to Alvand Mt., Hamadan province, Iran, is described as a new species and illustrated. The new species belongs to Astragalus section Hymenostegis and is related to A. bradosticus
December 2003
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22 Reads
Novon A Journal for Botanical Nomenclature
While preparing the account of As- tragalus L. (Fabaceae) for the Flora of China, Vol- ume 10, it was noticed that one species, A. yume- nensis S. B. Ho, described from Gansu Province in 1983, was invalidly named because two types (one flowering and one fruiting) were designated. The name is validated here, with the fruiting specimen designated as the holotype.
December 2001
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44 Reads
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10 Citations
Nordic Journal of Botany
The systematic position of Astragalus semnanensis is studied. Morphological and micromorphological features of this species are not in accordance with the old position of this species as a member of A. sect. Leucocercis. Within A. subgen. Astragalus this species is intermediate between A. sect. Acanthophace and A. sect. Megalocystis, but it shows critical differences from them. Therefore, a new section, A. sect. Semnanenses is described.
... The delimitation and subdivision of the genus are currently very confused because of its sheer size (ca. 3000 species) and the large variability of the morphological features, habit and habitats (Maassoumi 1998;Wojciechowski et al. 1999;Taeb et al. 2012;Podlech and Zarre 2013;Chaudhary et al. 2008;Azani et al. 2017;Zarre and Azani 2013). ...
February 2012
Feddes Repertorium
... Additionally, in situ conservation is strongly recommended due to the sheer number of CWRs that are involved, the need to maintain an effective genetic representation, and the difficulty in precisely identifying which CWR or traits are required by plant breeders currently and in the future. This is the case even though the primary access route for breeders to diversity is via backup in situ samples deposited in ex situ gene banks (Yu et al. 2007;Zarre and Podlech 2001 However, without monitoring and active management, the genetic diversity within and between individual CWR populations could be eroded, and entire populations could even go extinct if no action is taken to protect them. All species that are found in protected areas are said to be passively conserved if the surrounding ecosystem or habitat is unaltered. ...
December 2001
Nordic Journal of Botany
... Comparative morphological, anatomical and seed macro-and micromorphological traits were also significant in systematic study of Aegacantha, and it has been helpful in phylogenetic reconstruction of this section (Khalili et al. 2021). The spine anatomical features in thorny Astragalus species have been provide better reliable characters for circumscription of species (Engel 1992;Mehrabian et al. 2007;Pirani et al. 2006;Saghi et al. 2015a;Gocić 2021). ...
April 2006
Flora
