The varieties of Convolvulus spithamaeus and of C. sepium
Tryon, Rolla M. (Rolla Milton), 1916-2001
Article
1939
Contributions from the Gray Herbarium of Harvard University
Issue: 126
415--423
Harvard University Botany Libraries
English
[Cambridge, Mass.] Harvard University -1984]
DOI: https://doi.org/10.5962/p.336225 Wikidata: https://www.wikidata.org/entity/Q94388548