Pleurotaenium sp. Nageli, 1849
The cells are straight, with the length several times the breadth. The median constriction is well defined but not deep. The semicells are cylindrical with parallel sides throughout, although the ends may be somewhat attenuated and the poles always truncated. The bases of the semicells are always inflated. Chloroplasts are numerous, parietal, straight to undulate, band-shaped and extending the length of the semicells. There are several pyrenoids within the chloroplasts.
These are found in freshwaters throughout the main and offshore islands.
These desmids are found among the freshwater plankton.
Two mature cells come together in conjugation to form a zygore that germinates to give daughter cells.
As a member of the freshwater plankton, these desmids are at the bottom of the food chain.
Wee Yeow Chin