520 LiLiACE^. (lily family.) 



§ 1. Stems herbaceous, notprickli/ ; flowers carrion-scented ; ovules 2 in each cell ; 

 leaves memhranous, viucronate-tipped ; berries bluish-black with a bloom. 



1. S. herbacea, L. (Carrion-Flower.) Stem climbing, 3- 15° high ; 

 leaves ovate or rounded, mostli/ heart-shaped or truncate at base, abruptly acute 

 to short-acuminate, 7 - 9-neryec/, smooth ; petioles ^-V long; peduncles elon- 

 gated (3-4'' long, or sometimes even 6-8' and much longer than the leaves), 

 20 - 40-flo\vered ; seeds 6. — Moist meadows and river-banks; common, from 

 the Atlantic to Minn., Mo., and Tex. June. Very variable. — Var. pdlver- 

 ULEXTA, Gray, has the leaves more or less soft-downy beneath. 



2. S. tamnif olia, Michx. Stem upright or climbing ; leaves mostly .5- 

 nerved, smooth, broadly ovate to lanceolate, truncate or cordate at base, ab- 

 ruptly acute to acuminate, some of them hastate ivith broad rounded lobes; 

 peduncles longer than the petioles ; berry smaller, 2 - 3-seeded. — Pine-barrens, 

 N. J. to S. C. 



3. S. ecirrhata, Watson. Erect, i-3° high, without tendrils (or only the 

 uppermost petioles tendril-bearing), glabrous; lower leaves reduced to narrow 

 scale-like bracts, the rest thin, 5 - 7-nerved, broadly ovate-elliptical to roundish, 

 acute, mostly cordate at base, 2-5' long, sometimes verticillate, sparsely pu- 

 bescent beneath; peduncles about equalling the petioles (1 -2^' long), on the 

 lower part of the stem; umbels 10-20-fiowered; berry 3-seeded. — Md. to 

 S. C, west to Mich, and Mo. May, June. 



§ 2. Ste7ns woody, often prickly ; ovules solitary ; cjlabrous throughout. 

 * Leaves ovate or roundish, etc., most of them rounded or heart-shaped at base, and 



5 - 9-nerved, the three middle nerves or ribs stronger and more conspicuous. 



•♦- Peduncles shorter or scarcely longer than the petioles (2 - ^"), flattened ; leaves 



thickish, green both sides. 



4. S. Walter!, Pursh. Stem low, somewhat angled, prickly near the base 

 or unarmed ; leaves ovate to ovate-lanceolate or oblong, somewhat lieart-shaped or 

 rounded at base (3-4' long) ; berries coral-red. — Pine barrens, N. J. to Fla. 



5. S. rotundifolia, L. (Common Greenbrier. Horse-brier.) Stem 

 armed with scattered prickles, as Avell as the terete branches ; branchlets more 

 or less 4-angular ; leaves ovate or round-ovate, often broader than long, slightly 

 heart-shaped, abruptly short-pointed (2-3' long); berries blue-black, with a 

 bloom. — Moist thickets, N. Eng. to Ga., west to Minn, and Tex. Very vari- 

 able, passing into var. quadrangulXris, Gray, which has branches, and espe- 

 cially branchlets, 4-angular, and is more common west. 



-t- +- Peduncle longer than but seldom twice the length of the short petiole, flat- 

 tened ; leaves tardily deciduous or partly persistent ; berries black, with a bloom. 



6. S. glauca, Walt. Terete branches and somewhat 4-angular branchlets 

 armed with scattered stout prickles, or naked ; leaves ovate, rarely subcordate, 

 glaucous beneath and sometimes also above, as well as the branchlets Avhen young 

 (about 2' long), abruptly mucronate, the edges smooth and naked. — Dry 

 thickets, E. Mass. to Fla., west to S. Ind., Mo., and Tex. 



7. S. bona-nox, L. Branches and the angular (often square) branchlets 

 sparsely armed Avith short rigid prickles; leaves varying from round-heart- 

 shaped and slightly contracted above the dilated base to fiddle-shaped and hal- 

 berd-shaped or 3-lobed, green and shining both sides, cuspidate-pointed, the 



