Floristic leaf-size and life form spectra of district Pishin, Balochistan, Pakistan
Pure and Applied Biology
In the floristic survey of district Pishin, Balochistan a total of 270 species belonging to 65 families of spermatophytes were collected. Out of which, 62 were angiosperm and 3 were gymnosperm families. Out of the total 270 species belonging to 197 genera, 3 genera each comprised of 1 species were gymnosperms. Remaining 267 species were angiosperms, out of these 48 species were monocots and 219 species were dicots. Cupressaceae, Ephedraceae and Pinaceae were represented by 1 genus (0.507%) and
... species (0.37%). In monocots, Poaceae was the largest family having 27 genera (13.70%) and 32 species (11.85%). In dicots Asteraceae, Papilionaceae and Brassicaceae were found to be largest families consisting of 35 (12.96%), 23 (8.51%) and 21 species (7.77%), respectively. The predominant life form was Therophyte with 144 species (53.33%). In Phanerophytes, Nannophanerophytes were predominant class with 15 species (5.55%). Ampelopsis vitifolia and Vitis vinefera were lianas or woody climbers and Cuscuta campestris was the only parasitic species found in the region. The leaf spectrum was dominated by Nanophylls with 103 species (38.14%). It was noted that the studied area is rich in terms of plant forms but over harvesting, overgrazing and mismanagement of flora are having hazardous effects to local biodiversity and a comprehensive idea is required to secure natural resources.