On the xylem elements of the Pteridophyta
Bancroft, Nellie 1887-
Article
1911-07
Annals of botany
25
745--759
New York Botanical Garden, LuEsther T. Mertz Library
English
London, Academic Press [etc.],
DOI: https://doi.org/10.1093/oxfordjournals.aob.a089351
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