42 CHINESE ECONOMIC TKEES 



Podocarpineae, with winged pollen grains, chiefly confined to the 

 Southern Hemisphere. 



Taxineae, with wingless pollen grains, confined chiefly to the 

 Northern Hemisphere. 



4 genera occur in China. 



KEY TO CHINESE GENERA 



Podocarpineae. Pollen grains winged; anthers 2 celled; trees and 

 shrubs chiefly tropical and subtropical. 



A. Leaves linear to elliptic, rarely scale-like; fruit usually on a 

 thick, fleshy peduncle Podocarpus. 



Taxineae. Pollen grains wingless; anthers 3-8 celled; trees and 

 shrubs mostly in the temperate regions ; leaves linear. 



A. Pistillate flower composed of 2-20 scales on a fleshy axis, each 

 scale bearing 2 ovules ripening into a more or less fleshy cone with few 

 large, drupe-like seeds Cephalotaxus. 



B. Pistillate flowers reduced to a solitary ovule. 



I. Anthers 4 celled, united into a half ring; fruit a drupe with 

 a long-pointed seed; leaves with 2 broad white lines 

 beneath Torreya. 



II. Anthers 6-8 celled, united into a globose head ; fruit berry-like, 

 composed of a bony seed surrounded by a colored fleshy aril ; 

 leaves pale green beneath •' Taxus. 



TAXUS. 



Evergreen trees or shrubs with dark, reddish-brown bark peeling in 

 thin shreds when young. Leaves mostly in 2 ranks by tortion of the 

 leaf bases, flat, dark green and keeled above, pale green beneath, pointed 

 and stalked. Flowers dioecious, rarely monoecious, borne in the axils 

 of the leaves on twigs of the previous year's growth. The staminate 

 flowers consist of a globose head of 6-8 yellow stamens on a stalk with 

 imbricated scales at its base; the stamens composed of 4-8 conical, 

 pendent anther cells connate at the apex to each other and to their 

 filament, spreading and shield-shaped after the discharge of the globular 

 pollen grains. The pistillate flowers consist of a solitary ovule in the 



