Its peripheral cells are sharpened. Scenedesmus Green alga with pointed extremities. It forms little colonies of 4-8 individuals, slightly staggered. There are many similar species which are hard to identify. The term of conjugate comes from their particular way of sexed reproduction, in which two sexually different amoeboid cells fuse.
Conjugates also have asexual reproduction.
They are very beautiful algae. They live only in freshwater and have no flagellate stage. Between them, Desmids have cells formed by two symmetrical halves, separated by a deep incision. Closterium The shape of this alga is that of a lunar sickle. Cosmarium Simple desmid.