Occurrence of Nostoc Vaucher ex Bornet and Flahault in Water Bodies of Maldah District, West Bengal

Abstract

Present investigation deals with systematic enumeration, importance and uses of Genus Nostoc Vaucher ex Bomet and Flahault collected from different water bodies of Maldah District, West Bengal. Six species and one variety of Genus Nostoc Voucher ex Bomet and Flahault (Nostoc cakicola Bra. ex Bomet and Flahault, Nostoc carneum C.Agardh ex Bernet and Flahault, Nostoc comminutum Kfitz., Nostoc ellipsosporum Rabenh. ex Bernet and Flahault, Nostoc linckia Bernet ex Bomet and Flahault, Nostoc oryzae (F.E.Fritsch) Komarek and Aoagn. and Nostoc ellipsosporum var. violaceum C.B.Rao) were recorded from water bodies of out of fifteen, four blocks - Harishchandrapur-I, Harishchandrapur-II, Ratua II and Gazol of Maldah District, West Bengal. Nostoc ellipsosporum var. violaceum C.B.Rao has been reported for the first time from barabilla bil of block Ratua II of Maldah District, West Bengal. Some of the species of Nostoc Voucher ex Bomet and Flahault are very important and useful in different ways which has been described in this paper.