Two new species of Astragalus L. sect. Incani DC. (Fabaceae) from the Zanjan province (Iran)

[摘要] AstragalusdilutuloidesMaassoumi,F.Ghahrem.amp;Bagheri,sp.nov.andAstragalusmontis-queydariF.Ghahrem.,Maassoumiamp;Bagheri,sp.nov.aredescribedasnewspecies.Morphologicalevidence(bifurcatedtrichome,acaulescence,freestipules,bibracteolate,non-inflatedcalyxinfruit)supportstaxonomicplacementofthenewtaxainAstragalusL.sect.IncaniDC.TheseareendemictotheZanjanprovinceofwesternIran.AstragalusdilutuloidesisclosetoA.dilutulusMaassoumi,butitdifferswithhavinglongerhabit,longerstipules,longerleaves,inleavesindumentum,longerpeduncle,andcolorofbractandbracteoleshairs.Astragalusmontis-queydariisclosetoA.xiphidiopsisBornm.,butitdiffersfromthefirstnewspecieswithhavinglongerstipules,fewerleaflets,shorterpeduncle,andinflorescencewithfewerflowers(4–10vs10–20).

[学科分类] 植物学

[关键词] Papilionaceae;Astragalus subgenus Cercidothrix;Astragalus sect. Proselius;West Iran;new species;Papilionaceae;Astragalus sous-genre Cercidothrix;Astragalus sect. Proselius;ouest de l'Iran;espèces nouvelles