Diversity of the genera of Chlorophyta in fresh waters of District Swat N.W.F.P Pakistan

Fifty six genera of green algae were collected from ten different localities of district swat,belonging to 25 families and 9 genera of chlorophyta from december 2006 august 2008. family oocystaceae with 39 species was most commonly found,next to it were families scenedesmaceae with18 species and desmidiaceae with 14 species. the genera oocystis and tetraedron were represented by 10 species and cosmarium with 7 species occurred most commonly. among the recorded genera 13 (23.2%) were unicellular,25 (44.6%) were colonial,9 (16.7%) were unbranched filamentous,4 (7.1%) were branched filamentous,1 (1.7%) was pseudofilamentous,1 (1.7%) was mesh-like,2 (3.5%) were heterotrichous and 1 (1.7%) was with irregular amorphous thallus. highest proportion of chlorophycean members was recorded from kanju area 89 and lowest was recorded from kalam 69.