Chromosome studies in Verbena with special reference to the commercial varieties
By: by Lewis Paul McCann ...
Published: 1938
Place of publication: [College Park, Md
Language: eng
Number of pages: 23
Subjects: Verbena.; Chromosomes.
Notes: "Literature cited": leaves 21-23.
Thesis (Ph. D.)--University of Maryland, 1938.
Type-written (carbon copy)