TY  - BOOK
AU  - Hemsley, Alan R
AU  - Bell, Peter Robert
TI  - Green plants: their origin and diversity.-- 2nd ed
SN  - 0521646731
AV  - QK 45.2 Bel 
PY  - 2000///
CY  - Cambridge
PB  - Cambridge University P
KW  - PLANTS--EVOLUTION
KW  - Plants--Classification
KW  - BOTANY
KW  - Plants--Variation
ER  -