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Fiftieth Anniversary || On the Species of Dryopteris, Subgenus Pycnopteris
Motozi Tagawa and Kunio IwatsukiVolume:
50
Language:
english
Journal:
American Fern Journal
DOI:
10.2307/1545249
Date:
April, 1960
File:
PDF, 727 KB
english, 1960