TY  - BOOK
AU  - Cheadle V I
TI  - Independent origin of vessels in the Monocotyledons and dicotyledons
U1  - 583 
PY  - 1953///
KW  - Dicotyledons
N1  - Photo copy from Phytomorphology, v.3,no-1-4,March 1953,PP23-44
ER  -