TY  - BOOK
AU  - Heslop-Harrison,J.
TI  - New concepts in flowering-plant taxonomy
U1  - 582.13012 23
PY  - 1953/// [reprinted 1965]
CY  - London
PB  - Harvard University Press
KW  - Plants
KW  - Classification
KW  - Variation
N1  - Bibliography: p. 130
ER  -