Cytomorphological studies in the familySolanaceae from West Pakistan

A project on the chromosome survey of the flora of West Pakistan is in progress and chromosome counts of a large number of species from this region have been reported earlier (Baquar et al. 1965, 1966, 1967). The present paper is a part of this project. Morphological and cytological behaviour of 29 species distributed over 12 genera of the familySolanaceae have been investigated for the first time from West Pakistan. The present investigation shows that the cytological behaviour of the plants of this region is almost similar to those of the other parts of the world. Besides the confirmation of the earlier findings, this report includes four new records namely:solanum albicauleKotschyn=12;Solanum gracilipesDecnen=12;Withania coagulansDunaln=24;Datura metel L.n=12.