222 GYMNOGENS. 



The Natural Orders of Gymnogens. 



Stem simple, continuous. Leaves parallel-veined, pinnate. Scales of \ - o p YCADEArE » 



the cone anther if emus J 



Stem repeatedly branched, continuous. Leaves simple, acerose. Females\~. Pi\ ACEjE 



in cones J 



Stem, repeatedly branched, continuous. Leaves simple, often fork- j 



veined. Females solitary. Membrane next the nucleus inclosed. / 75. Taxace-e. 



Anthers 2-celled, opening longitudinally J 



Stem repeatedly branched, jointed. Leaves simple, net-veined. 1 

 Membrane next the nucleus tubular, protruded. Anthers \-celled, w6. Gnetace^:. 

 opening by pores .J 





