R M Klein1, J L Knupp. Show Affiliations » 1. NEW YORK BOTANICAL GARDEN, NEW YORK.
Abstract
Entities: Species
Year: 1957 PMID: 16589998 PMCID: PMC528411 DOI: 10.1073/pnas.43.2.199
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205