The Crataegus Problem
Palmer, Ernest J
Article
1932
Journal of the Arnold Arboretum
13
Issue: 3
342--362
BioStor Harvard University Botany Libraries
English
Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
BioStor: https://biostor.org/reference/176640 DOI: https://doi.org/10.5962/p.185262