On Medullosa centrofilis, a new species of Medullosa from the lower coal measures
De Fraine, E.
Article
1914-04
Annals of botany
28
251--264
New York Botanical Garden, LuEsther T. Mertz Library
English
London, Academic Press [etc.],
DOI: https://doi.org/10.1093/oxfordjournals.aob.a089502
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