ANATOMICAL STUDIES ON COLPOMENIA SINUOSA (PHAEOPHYCOTA) FROM KARACHI COAST OF PAKISTAN

A commonly growing brown alga, Colpomenia sinuosa (Mertens ex Roth) Derbes et Solicr in Castagne [= Ulva sinuosa Mertens ex Roth] was collected during November 2006 and April 2009 from intertidal rocks at the coasts of Manora and Buleji, near Karachi. The globular thalli were investigated for their morphology, anatomy and reproduction. Peripheral cells were described in detail, bunches of oil globules were observed in upper few layers of the cortex and there was a complete absence of any intercellular space and in all types of cells.