Bibliographic Detail
Abbas, A. & Shameel, M., 2010
Reference:
Abbas, A. & Shameel, M. (2010). Anatomical studies on Iyengaria Børgesen (Phaeophycota) from Karachi coast of Pakistan. Proceedings of the Pakistan Academy of Sciences 47(3): 143-153.
Abstract:
A commonly growing brown seaweed, Iyengaria stellata (Børgesen) Børgesen [= Rosenvingia stellata Børgesen]
was collected during March 2007 and April 2009 from mid-littoral rocks at Manora and Buleji, the coastal areas of Karachi. The
multiprotuberant and globular thalli were investigated for their morphology, anatomy and reproduction. Their large, prominent
and distantly arranged protuberances (stellata) were studied in detail. Patches of thick-walled, dark brown hypodermal cells,
vertically elongated, thin-walled cells below hypodermis, intercellular spaces in the hypodermal cells, and 20 25 layers of cells
in the thalli were observed which were not noticed by the previous workers. During collection survey a new species, Iyengaria
nizamuddinii Abbas et Shameel was observed which is characterised by small and closely arranged protuberances, absence
of patches of thick-walled dark brown cells, lack of vertically elongated thin-walled cells and intercellular spaces. It was also
morphogically and anatomically investigated.
