The zygnemataceae (Fresh-water conjugate algae)
Subtitle: With keys for the identification of genera and species.
Series: Ohio. State University, Columbus. College of Arts and Sciences. Graduate School. Contributions in botany -- No. 1.; Contributions in botany (Ohio State University) -- no. 1.
Publisher: Ohio State University Press
Published: 1951
Place of publication: Columbus
Language: eng
Number of pages: 327
Subjects: Zygnematecae.