TY  - GEN
AU  - Webber, Herbert J., ed.
TI  - Spermatogenesis and fecundation of Zamia
PY  - 1901///
CY  - _SIN_VALOR_
PB  - Washington University
KW  - FECUNDACION
KW  - SPERMATOPHYTA
KW  - POLEN
N1  - \"Reprint of Bulletin no. 2, Bureau of Plant Industry, U.S. Department of Agriculture.\"; Incluye bibliografía
ER  -