116 CLASS XXr. ORDERS VI, VIII to XIII. 



Pistillate flowers — calyx S-leaved, entire, gaping 

 laterally : styles 2 : nut 2-valved, within the closed 

 calyx. 53. 98 — sativa^ (hemp) stem hairy, leaves 

 digitate, staminate flowers solitary. 0. 



Nyssa. Perfect flowers — calyx superior, 5-part- 

 ed : corol : pistil I : fruit a drupe. Staminate 

 flowers — stamens 10. 12. 24 — bijiora^ (tupelo tree, 

 or pepperidge) leaves ovate-oblong entire, pedun- 

 cle of perfect flowers 2-flowered. >2 — trijlora^ (sour 

 gum) leaves oval, peduncle about 3-flowered. ^ . 



Order VI. Hexandria. 



Smilax. Staminate flowers — calyx 5-Ieaved : 

 corol 0. Pistillate flowers — calyx and corol like 

 the staminate : styles 3 : berry 3-celled : seeds 2. 

 11.12 — rotundifolia^ (green l3riar) stem prickly, 

 leaves cordate acuminate 5 to 7-nerved, climbing. 

 \l . w-y — fieduncularis^ (Jacob's ladder) stem terete 

 unarmed: leaves ovate acuminate 9-nerved, pe- 

 duncles of fertile umbels longer than the leaves. 

 111. g. — herbacea^ stem and leaves unarmed, leaves 

 7-nerved, climbing with tendrils. 11, w-y — syfihi" 

 lUica, (true sarsaparilla) stem prickly-terete, leaves 

 lance-oblong 3-nerved mucronate. 



DioscoKEA. Staminate flowers — calyx 6-parted : 

 corol 0. Pistillate flowers — styles 3 : capsule 3- 

 celled, compressed " seed 2, membranaceous. 

 (Leaves generally alternate.) U. 12 — i/f/Zo^a, (yam 

 root) leaves downy beneath, cordate. 11 . 



From Order VIII. Octandria, to Order XIIL 



POLYANDRIA. 



PopuLus.' Staminate flowers — ament cylindric : 

 calyx a torn scale : corol turbinate, oblique, entire. 

 Pistillate flowers — ament, calyx and corol like the 

 staminate : stigma 4-cleft : capsule 2-ceIled: seed 



