Abstract
A total of 85 chromosome counts representing 45 species belonging to 29 genera in three subfamilies of Poaceae, viz., Arundinoideae, Chloridoideae, and Pooideae from Pakistan, are reported. The chromosome counts for six species, viz.: Leptothrium senegalense (n = 10); Piptatherum gracile (n = 12); Poa sinaica (n = 7); Sporobolus arabicus (n = 18); Sporobolus nervosus (n = 18); and Stipagrostis plumosa (n = 22), are new determinations. Chromosome counts for an additional 34 species are new for the flora of Pakistan. New cytotypes were detected in Aeluropus lagopoides (n = 20), Avena barbata (n = 21), Diplachne fusca (n = 20), and Ochthochloa compressa (n = 10).