Apjohnia
Apjohnia is a genus of green algae in the family Siphonocladaceae.
The genus name of Apjohnia is in honour of Anne Apjohn, the wife of James Apjohn, the Irish chemist.
Species
As accepted by WoRMS;Apjohnia laetevirens Apjohnia scopariaFormer species;A. rugulosa now accepted as synonym of Cladophora prolifera A. tropica accepted as synonym of ''Siphonocladus tropicus''