A contribution to the knowledge of sub-aërial Desmids
Series: Societas Scientiarum Fennica. Commentationes biologicae -- 4:4; Commentationes biologicae -- 4:4
Publisher: Akademische Buchhandlung
Published: 1932
Place of publication: Helsingfors
Language: eng
Subjects: Desmidiaceae
Notes: Cover title.

For part 2 see his Sub-aërial desmids.