Plants collected by R. C. Ching in southern Mongolia and Kansu Province, China.
Walker, Egbert H. 1899-1991.
Plants collected by R. C. Ching in southern Mongolia and Kansu Province, China. By Egbert H. Walker. - Washington, U.S. Govt. Print. Off., 1941. - v, 563-675, vii-xiii p. illus., pl. 21-27 (incl. fold. map) on 4 l, 25 cm. - Smithsonian Institution. U. S. National Museum. Contributions from the U. S. National Herbarium, v. 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.
agr41000524
Botany--China--Gansu Sheng.
Botany--Mongolia.
QK1 / .U5 vol. 28, pt. 4
450.C76 580.74
Plants collected by R. C. Ching in southern Mongolia and Kansu Province, China. By Egbert H. Walker. - Washington, U.S. Govt. Print. Off., 1941. - v, 563-675, vii-xiii p. illus., pl. 21-27 (incl. fold. map) on 4 l, 25 cm. - Smithsonian Institution. U. S. National Museum. Contributions from the U. S. National Herbarium, v. 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.
agr41000524
Botany--China--Gansu Sheng.
Botany--Mongolia.
QK1 / .U5 vol. 28, pt. 4
450.C76 580.74