Title
THE RELATIONSHIPS OF THE AMERICAN BLACK-FRUITED HAWTHORNS CRATAEGUS ERYTHROPODA, C. RIVULARIS, C. SALIGNA AND C. BRACHYACANTHA TO C. SER. DOUGLASIANAE (ROSACEAE)
By
Phipps, J B
Original Publication
SIDA, contributions to botany
Published by
[Dallas W. F. Mahler, etc.] 1962-
Identifiers
BioStor:
https://biostor.org/reference/159850