Verbatim text: Abbe, E. C. 1938. Studies in the phylogeny of the Betulaceae. II. Extremes in the range of variation of floral and inflorescence morphology. Bot. Gaz. 99: 431--469.
Author: Abbe, E.C.
Year: 1938
Title: Studies in the phylogeny of the Betulaceae. II. Extremes in the range of variation of floral and inflorescence morphology
Journal: Bot. Gaz
Volume: 99
Pages: 431–469