American. Fern Society

American. Fern Society

R. C. Benedict, R. C. Ching, Jay G. Underwood and Charles S. Lewis
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Volume:
23
Language:
english
Journal:
American Fern Journal
DOI:
10.2307/1544786
Date:
April, 1933
File:
PDF, 389 KB
english, 1933
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