Tumors, cysts, pith-bundles, and floral proliferations in Helianthus
By: by Erwin F. Smith
Publisher: U.S. Govt. Print. Off
Published: 1927
Place of publication: Washington
Language: eng
Number of pages: 50
Subjects: Crown-gall disease; Helianthus; Sunflowers; Plant Diseases; Plant diseases
Notes: Includes bibliography.