Article

A new diploid species, Bromus parilicus, is recognized within the B. riparius aggregate and compared to B. cappadocicus (6_x_), B. lacmonicus (8_x_), and B. riparius (10_x_). The decaploid B. fibrosus var. orbelicus is raised to specific rank. B. transsilvanicus probably al so belongs to the B. riparius- aggregate. 2_n = 14 and 2_n_ = 70, counted on plants from N.E. Anatolia, are new chromosome numbers for B. tomentellus subsp. tomentellus and subsp. woronovii, respectively. The first 2_x_ count (2_n_ = 14) for a member of the B. erectus aggregate is reported for B. moellendorffianus, which is newly recorded for Siovenia.