24 Sprmg Flora of Ohio. 



Tril'-li-um ni-va'-le.Riddell. Snowy Trillium. — Leaves oval or ovate^ 

 obtuse; petals oblong, obtuse, white, equalling the peduncle. 



TriK-li-um un-du-laMum Willd. [T. erythrocarpum Mx.) Paintetf 

 Trillium. — Leaves ovate, taper-pointed; petals ovate or oval-lanceolate, 

 pointed, white, painted at the base with purple stripes, shorter than 

 the peduncle. 



V. Order SMI-LA'-CE-ZE. GREEN BRIER FAMILY.— Mostly shrubby 

 plants; leaves ribbed and netted-veined, simple; a pair of tendrils ou 

 the petiole; flowers small, dioecious, greenish; ovary inferior. 



1. Genus SMI'-LAX. — Flowers small, greenish, regular, the peri- 

 anth segments distinct; stigmas thick and spreading, almost sessile, 



A. Stems herbaceous, not prickly. Jto^uers carrion-scented. 



SmI'-lax her-ba'-ce-a L. Carrion-flower.— Stem somewhat climbing. 

 3-15 ft. high, ivith tendrils; peduncles elongated, 3-4 in. or more in 

 length, umbel 20 to 40-flowered. 



Smi'-lax e-cir-rha'-ta (Englm.) Wats. Carrion-flower. — Erect ^-3 ft, 

 high, ?t';V//(7/// feiidrils or only the uppermost leaves tendril-bearing;, 

 peduncles about equalling the petioles, 1-2 j^ in. long. 



A. Stents 7Voody, often prickly. 



h. PedjDicles longer than hut seldom ticice the length of the petiole., 



Smi'-lax ro-tun-di-fo'-li-a L. Green Brier. — Leaves green both sides,, 

 ovate or round-ovate, peduncles shorter or scarcely longer than the 

 petioles; branchlets more or less 4-angular. 



Smi'-lax glau'-ca Walt. Green Brier. — Leaves glaucous beneath., 

 ovate, abruptly mucronate, peduncles longer than the short petiole. 



Smi'-lax bo'na-nox L. Green Brier. — Leaves varying from round- 

 cordate or slightl}^ contracted above the dilated base to fiddle-shaped 

 and halt)red-shaped or 3-lobed, green and shining on both sides. 



1). Peduncles 2 to 4 times as lo>ig as the petioles. 



Smi'-lax his'-pi-da ]Mulil. Green Brier. Stem below beset with long 

 and weak blackish bristly prickles; leaves membranous and decidu- 

 ous; peduncles \l4-'2 inches long. 



VI. Order AM-A-RYL-LI-DA'-CE-yE. AMARYLLIS FAMILY. - Flowers. 



regular, stamens (!; leaves linear, flat, radical; ovary 3-celled. 



