BISCALITHECA, A NEW GENUS OF PENNSYLVANIAN COENOPTERIDS, BASED ON ITS FRUCTIFICATION
Mamay, Sergius H.Volume:
44
Language:
english
Journal:
American Journal of Botany
DOI:
10.1002/j.1537-2197.1957.tb08235.x
Date:
March, 1957
File:
PDF, 2.75 MB
english, 1957