Vili 
GERMINATION AND GRowTH . 
SexvuaLt REpRopuction . 
PoLyMoRPHISM cs . . 
InFLUENCERS AND Errects . 
Hasitats . . ° > 
CULTIVATION » . ° . 
GerocrapuHicaL DisTRIBUTION . 
CoLLEOTION AND PRESERVATION 
CONTENTS, 
VIL 
- 163 
- 209 
- 233 
» 253 
- 266 
. 287 
