Write short notes on Carpogonia. long question
Answers
Answer:
The carpogonium (plural carpogonia) is the female organ in the Red Algae (Rhodophyta) which have a highly specialized type of reproduction. It contains the reproductive nucleus. ... It shows an elongated process which is the receptive organ for the male gametes. It gives birth to the carpospores.
Explanation:
Occurrence of Polysiphonia:
The genus Polysiphonia (Gr. poly — many; siphon — tube) is represented by more than 150 species, out of which about 16 species are reported from India. They grow in marine habitat and are cosmopolitan in distribution.
Commonly they are found in littoral and sublittoral zones. In India they are found in western and southern coasts. Commonly, they grow as lithophytes i.e., on rocks or stones (e.g., P. elongata), some species like P. urceola, P. terulacea grow as epiphytes on Laminaria. P. fastigiata grows as semiparasite on Ascophyllum nodosum.