On the structure of the leaf in cretaceous pines
Jeffrey, Edward C. (Edward Charles), 1866-
Article
1908-04
Annals of botany
22
207--220
New York Botanical Garden, LuEsther T. Mertz Library
English
London, Academic Press [etc.],
DOI: https://doi.org/10.1093/oxfordjournals.aob.a089167