Asterocaelum
Asterocaelum sp., cyst with spines (calcofluor) - photomicrograph René van Wezel

 

 

Genus Asterocaelum Canter, 1973

 

Diagnosis: Trophozoites with slender pseudopodia; some show a kind of dense axis observed light microscopically. Digestive cyst and resting stage with long thick spines. Feeding on algae, including cyanobacteria, by engulfing the whole cell. Pseudopodia resemble filopodia with a broad base.

 

Ecology: Reported from freshwater, in water blooms.

 

 

There are two described species in the genus:

 

 

 

Asterocaelum
Asterocaelum sp. - photomicrograph René van Wezel