توضیحاتی بر گونه‌های Bromus Sect. Bromus (Poaceae) در ایران

This article is a taxonomic review after flora iranica concerning some species of bromus sect. bromus. comparing the holotype, isotype and paratype of b. pseudobrachystachys with the lectotype of b. brachystachys and also reexamination of three iranian and iraqi herbarium sheets putatively determined under the latter’s name showed all belong to the former. b. racemosus, b. arvensis and b. secalinus are confirmed to occur in iran. despite b. tigridis was identified from turkey based on the sheet sorger & buchner 82-62-54, the iranian specimen was identified as b. racemosus. furthermore, a new record of this section i.e., b. macrocladus is reported here from mountains of razi village (w khoy, nw iran).