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POLLEN ORGANS OF THE PENNSYLVANIAN CALLISTOPHYTACEAE (PTERIDOSPERMOPSIDA)
Rothwell, Gar W.Volume:
59
Language:
english
Journal:
American Journal of Botany
DOI:
10.1002/j.1537-2197.1972.tb10177.x
Date:
November, 1972
File:
PDF, 2.06 MB
english, 1972