URTICACEiE 



33 



an^J bark prominently marked by broken spiral layers of very much 

 thickened cork; flowers greenish, the fertile solitary or in pairs, the 

 sterile fascicled. 



1. C. occident&Us, L. Hackberht. 



Leaves ovate, pubescent, particularly beneath, usually taper-pointed and 

 oblique at the base, variable in' texture; fruit dark purple when mature, 

 edible. A tree with something the appearance of the elm, but easily distin- 

 guished by its larger leaves and the thickened bands of cork in the bark. 

 Very local and usually growing in colonies of fairly mature trees. The 

 south end of Lake Manitoba. 



Fig. 31. — Humulus Lupulus. 



3. HUMULUS. Hop. 



Flowers dioecious, axillary, the sterile in long loose panicles, the fei> 

 tile in short spikes (hops) with foUaeeous bracts; calyx of sterile 

 flowers 5 sepals, that of fertile a single bract; stamens 5; fruit an 



D 



