The problem of conserving rare native plants.
Series: Publication -- 3573.
Publisher: U. S. Govt. Print. Off
Published: 1940
Place of publication: Washington
Language: eng
Number of pages: 391
Subjects: Plants, Protection of.; Rare plants.
Other titles: Conservingrare native plants.; Rare native plants.
Notes: "From the Smithsonian report for 1939, pages 375-391 (with 7 plates)".