Comparative morphology of spores of the ferns and fern allies of Minnesota.
Publisher: [s.n.]
Published: 1969
Place of publication: Minneapolis
Language: eng
Number of pages: 183
Subjects: Pteridophyta -- Minnesota; Spores (Botany)
Notes: Facsimile of typewritten copy, produced in 1969 by University Microfilms Ann Arbor, Michigan.

Thesis (Ph.D.)--University of Minnesota, 1961.