Contributions from the United States National Herbarium.
United States National Herbarium.
United States.Division of Botany.
United States National Museum.
Washington : Smithsonian Institution Press
Refereed/Peer-reviewed
Suspended 1975-1999.
Electronic reproduction.
Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002.
Vols. 1-7 published by: United States. Dept. of Agriculture, Division of Botany; v. 8-29 by: United States National Museum.
digitized
Vol. 1; title from PDF title page (viewed December 1, 2010).
Vol. 57 (JSTOR, viewed February 14, 2014).
Botany.
Botany.
Plantkunde.