(more) Desmidium is a genus of green algae, specifically of the Desmidiaceae.

[1] Desmidium is one of the filamentous desmid genera characterized by rather firm intercellular connections.

Desmidium cell walls are smooth with multiple side-by-side or scattered pores.

The nucleus is found in the conjoined area of semicells (isthmus).

Moreover, cell filaments are markedly twisted, to be seen from a gradual shift in position of the cellular lobe facing the observer.