Occurrence of Padina gymnospora (Phaeophycota) at the coast of Karac

摘要

Padina gymnospora (Kützing) Sonder was collected from the coast of Karachi during January 2009. This is the first report of its occurrence at the coast of Pakistan and its first detailed study from this area regarding the taxonomy and anatomy. It showed in situ germination on its sporangial lines within the sporangial walls, which may be due to syntagmatic germination i.e., all the spores dividing and merging into one single outgrowth.