Structural and Physiological Botany. 
334 
Both kinds of flowers are always placed in terminal cones 
dicecious. 
4 
at the apex of the stem, in the centre of the crown of leaves, and have: 
SS SS 
Fic. 453.—Cycas circinalts, a Cycad (greatly reduced). 
which is 
, in the other case bears 
is, 
, but consist simply of an ax 
no floral envelope or perianth 
in the one case densely covered with stamens 
