 | 180 páginas
( Contributions from the U. S. National Herbarium ) T SCHIFFINO , J. Riqueza forestal dominicana . 3a . ed . Ciudad Trujillo , Editora Montalvo , 1945 . 291 p . SCHREUDER , G. F. Summary of research of the Department of Forestry II ... | |
 | Iica - 544 páginas
... 1958- An . CONTRIBUTIONS FROM THE U.S. NATIONAL HERBARIUM ( EE.UU. , Washington , D.C. ) v.1- 1890A : 5 , 3 , 4 ( 1897-99 ) ; 7 , 3 ( 1902 ) ; 8 , 1 , 3 ( 1903 ) ; 13 , 8 , 11 ( 1911 ) ; 16 , 1 , 8 , To - 12 , 14 ( 1912-16 ) ... | |
 | 302 páginas
CONTRIBUTIONS FROM BOYCE THOMPSON INSTITUTE ( EE.UU. ) . Trimestral . Boyce Thompson Institute for Plant Research , New York . CONTRIBUTION FROM THE U.S. NATIONAL HERBARIUM . Irregular . Smithsonian Institution , U.S. National Museum ... | |
 | 32 páginas
U. S. National Herbarium . Contributions 22 ( 6 ) : 439-515 . 1922 . The grasses of Central America . U. S. National Herbarium . Contributions 24 : 557-762 . 1930 . ASTUS The grasses of Ecuador , Peru and Bolivia . | |
 | 202 páginas
HITCHCOCK , A. S. The grasses of Central America . U. S. National Herbarium . Contributions 24 ( 9 ) : 557-762 . 1930 . 16 . 17 . 19 . Mexican grasses in the United States National Herbarium . U. S. National Herbarium . | |
 | 454 páginas
Washington D. C. , U. S. Government Printing Office , 1928 . p . 318 . ( U. S. National Herbarium . Contributions , v . 27 ) Trees and shrubs of México . Washington , D.C. , U. S. Government Printing Office , 1924 . pp . 12181219. | |
 | 134 páginas
The North American species of Paspalum . Washington , D. C. , U. S. Government Printing Office 1929 . 310 p . ( U.S. National Herbarium . Contributions , vol . 28 , part 1 ) CHRISTOPH , R. J. & FISK , E. L. Responses of plants to the ... | |
 | 1978 - 214 páginas
STANDLEY , P. C. Contributions from the U.S. National Herbarium 23 ( 3 ) : 559–561 . 1920 . STEVENSON , D. Types of forest growth in British Honduras . Tropical Woods no . 14 : 20-25 . 1928 . ( 836 STEVENSON , N. S. Silvicultural ... | |
 | 1992 - 88 páginas
Contributions from the U. S. National Herbarium Vol . 35 , Part 6 . 1964 . DUCKE , A. As espécies brasileiras de cacau ( gênero Theobroma L. ) , na botânica sistemática e geográfica . Rodriguesia 4 ( 13 ) : 265-276 . 7 pl . 1940 . 6. | |
 | IICA Costa Rica - 76 páginas
Contributions to the U.S. National Herbarium 24 ( 5 ) : 103-104 . 1924 . ( 085 Se ofrece descripción general sobre pejibaye ( Guilielma speciosa Mart . ) . * * * * * RESTREPO , M. C. Informe 14. | |
| |
