Sort By:
  1. Taxonomic literature : a selective guide to botanical publications and collections with dates, commentaries and types
    By: Stafleu, Frans A. (Frans Antonie), 1921-1997 - Cowan, Richard S.
    Edition: 2d ed.
    Publication info: Utrecht :Bohn, Scheltema & Holkema,1976-1988.
    Contributed by: Smithsonian Libraries
    View Book
  1. Candolleodendron, a new genus of the Leguminosae (Caesalpinioideae)
    By: Cowan, Richard S. 1921-
    Type: Article
    In: Rhodora
    Volume: 68
    Date: 1966
    Page Range: 429--432
    View Article
  2. The National Collections As Biological Standards
    By: Cowan, Richard S. 1921-
    Type: Article
    In: Proceedings of The Biological Society of Washington
    Volume: 82
    Date: 1969
    Page Range: 611--617
    View Article
  3. A new Swartzia from Suriname
    By: Cowan, Richard S. 1921-
    Type: Article
    In: Phytologia
    Volume: 26
    Date: 1973
    Page Range: 279--280
    View Article
  4. A Revision Of The Genus Bocoa Caesalpinioideae Swartizieae
    By: Cowan, Richard S. 1921-
    Type: Article
    In: Proceedings of The Biological Society of Washington
    Volume: 87
    Date: 1974
    Page Range: 95--128
    View Article
  5. Studies Of Tropical American Leguminosae Part 7
    By: Cowan, Richard S. 1921-
    Type: Article
    In: Proceedings of The Biological Society of Washington
    Volume: 86
    Date: 1973
    Page Range: 447--460
    View Article
  6. Studies of tropical American Leguminosae-VIII
    By: Cowan, Richard S. 1921-
    Type: Article
    In: Proceedings of The Biological Society of Washington
    Volume: 90
    Date: 1977
    Page Range: 237--242
    View Article