TY  - SER
AU  - Norston, Knut J.,
TI  - American Journal of Botany Vol. 67 (1-5)
U1  - 580 
PY  - 1980///
CY  - U.S.A
PB  - Botanical Society of Americs, Inc.
KW  - Botany
KW  - Plants (Botany)
ER  -