2 SOUTH AFRICAN BOTANY 
active state is spoken of as germination. Before the 
25 [ana an-n np 
Fra. 1. 
A. Broad-bean seed. B, The seed divided longitudinally. OC. Ger- 
minating seed. D. Seedling plant. hk, Hilum. p. Plumule. m. 
Micropyle. +. Radicle. ec. Cotyledon. ¢, Testa. (From Darwin’s 
“ Elements of Botany ”’.) 
change can be brought about, three conditions have to 
