Plants collected by R. C. Ching in southern Mongolia and Kansu Province, China. By Egbert H. Walker.
Material type:
TextSeries: Smithsonian Institution. U. S. National Museum. Contributions from the U. S. National Herbarium ; v. 28, pt. 4Publication details: Washington, U.S. Govt. Print. Off., 1941.Description: v, 563-675, vii-xiii p. illus., pl. 21-27 (incl. fold. map) on 4 l, 25 cmSubject(s): DDC classification: - 450.C76 580.74
- QK1 .U5 vol. 28, pt. 4
Issued July 22, 1941.
"Report of the expedition. By R. C. Ching": p. 573-593.
"Principal publications on Kansu, mostly botanical": p. 566-568 and index.
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