TY  - GEN
AU  - Babcock, E. B. (Ernest Brown), b. 1877
AU  - Stebbins, G. Ledyard (George Ledyard), 1906-
TI  - The American species of Crepis: their interrelationships and distribution as affected by polyploidy and apomixis 
PY  - 1938///
CY  - Washington (D.C.)
PB  - The Carnegie Institution of Washington
KW  - CITOLOGIA
KW  - COMPUESTAS
KW  - ESTADOS UNIDOS
KW  - TAXONOMIA
KW  - CREPIS
N1  - Donación: Legado Dr. Juan H. Hunziker; Incluye Bibliografía: p. 75-78 e índices
ER  -