Tumors, cysts, pith-bundles and floral proliferations in Helianthus
By: by Erwin F. Smith.
Series: Memoirs of the National Academy of Sciences ; v. 22, 4th memoir; Memoirs of the National Academy of Sciences -- v. 22, no. 4.
Publisher: Government Printing Office
Published: 1928
Place of publication: Washington
Language: eng
Number of pages: 51
Subjects: Helianthus.; Crown-gall disease.
Notes: Issued with Memoirs, v. 22.