Observations on Ptyxis, Phenology, and Trichomes in the Cycadales and their Systematic Implications
Dennis Wm. StevensonVolume:
68
Language:
english
Journal:
American Journal of Botany
DOI:
10.2307/2442720
Date:
September, 1981
File:
PDF, 2.05 MB
english, 1981