Chromosome Numbers in Some Taxa of Fabaceae Mostly Native to Pakistan

Abstract

Chromosome numbers are reported for 60 taxa belonging to 35 genera of Fabaceae; 44 of these are native to Pakistan, while the rest are cultivated.Chromosome numbers of seven taxa viz.: Argyrolobium stenophyllum (n = 13); Astragalus bicuspis (n = 8); Astragalus ptilocephalus (n = 8); Chesneya parviflora (n = 8); Indigofera caerulea var.caerulea {n = 8); Sophora mollis subsp.griffithii Ali {n = 9); and Taverniera glabra {n = 8), are reported for the first time.Counts for 35 additional taxa are the first reports for plants native to Pakistan.In Pakistan, Fabaceae, the third largest family of flowering plants, is represented by 104 genera and 514 species (Ali, 1973a(Ali, , b, 1977) ) of which only 35 species (i.e., 6.8%) have been examined chromosomally (Baquar et al.