Revision of the Nostocaceae with cylindrical trichomes (formerly Scytonemataceae and Rivulariaceae. nork Drouet, Francis

Revision of the Coccoid Myxophyceae. nork Drouet, Francis

Revision of the Nostocaceae with cylindrical trichomes. nork Drouet, Francis

Revision of the coccoid Myxophyceae nork Drouet, Francis 1907-

Revision of the classification of the oscillatoriaceae. nork Drouet, Francis

A list of algae from Columbia nork Drouet, Francis

Revision of the nostocaceae with constricted trichomes nork Drouet, Francis