On medullation in the Pteridophyta
Bower, F. O. (Frederick Orpen), 1855-1948
Article
1911-07
Annals of botany
25
555--574
New York Botanical Garden, LuEsther T. Mertz Library
English
London, Academic Press [etc.],
DOI: https://doi.org/10.1093/oxfordjournals.aob.a089343