Medullary spots and their cause
Grossenbacher, John Gasser, 1875-
Article
1915
Bulletin of the Torrey Botanical Club
42
227--239
BioStor
English
New York, Torrey Botanical Club, 1870-1996
BioStor: https://biostor.org/reference/73449 DOI: https://doi.org/10.2307/2479652