LILIACEAE (LILY FAMILY) 295 



ribbed and netted-veined simple leaves. (An ancient Greek name, of obscure 

 meaning.) 



§ 1. Stems herbaceous, not prickly ; flowers carrion-scented; ovules 2 in each 

 cell; leaves membranous, mucronate-tipped ; berries bluish-black xcith a 

 bloom. 



1. S. herbacea L. (Carrion-flower.) Stem climbing, 1-5 m. hit,^h ; Z^avea 

 ovate or rounded, mostly heart-shaped or truncate at base, abruptly acute to 

 sliort-acuminate, 7-9-nei'ved, smooth; petioles 1-4 cm. long; ])eduncles 4-20 

 cm. long, often much exceeding the leaves, 20-40-flo\Yered ; seeds 2-0. — Moist 

 meadows and river-banks, common, N. B. to Man. and Tex. June. — Varialile. 

 Var. PULVERULENTA (Mlchx.) Gray. Leaves sparingly to densely pubeiulent 

 on the veins beneath. (^S. pulverulenta Michx.) — Ta. to Ont., w. to Mont, and 

 Kan. 



2. S. tamnifolia Michx. Stem upright or climbing ; leaves mostly b-nerved, 

 smooth, broadly ovate to lanceolate, truncate or cordate at base, abruptly 

 acute to acuminate, some of them hastate with broad rounded lobes; peduncles 

 longer than the petioles ; berry smaller, 2-3-seeded. — Pine-bai-rens, I'a. and 

 N. J. to S. C. 



3. S. ecirrhata (Engelm.) Wats. Erect, 1.5-9 dm. high, w'thout tendrils 

 (or only the uppermost petioles tendril-bearing) ; lower leaves reduced to narrow 

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

 ^ute, mostly cordate at base, 4-12 cm. long, pubescent beneath; peduncles and 

 petioles 3-7 cm. long ; umbels 10-20-flowered ; berry 3-seeded. — O. and Md. to 

 S. C., Wise, "Minn.," and Mo. 



§ 2. Stems woody, of ten prickly ; ovules solitary ; glabrous throughout. 



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

 and b-9-7ierved, the three middle nerves or ribs stronger and more con- 

 spicuous. 



■*- Peduncles (4-13 mm. long) shorter or scarcely longer than the petioles, flat- 

 tened; 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 heart-shaped 

 or rounded at base (5-11 cm. long); berries coral-red. — Pine-barrens, N. J. to 

 Fla. 



5. S. rotundifblia L. (Common Green Brier, Horse Brier.) Stem as well 

 as the terete branches armed with scattered prickles ; branchlets more or less 

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

 shaped, abruptly short-pointed, obscurely denticulate or entire ; berries blue- 

 black, with a bloom. — Moist thickets, N. S. to Ga., w. to Minn, and Tex. 

 — Very variable, passing into var. quadrangulXris (Muhl.) Wood., which has 

 branches, and especially branchlets, 4-angular, and is more common westw. 



1- ■*- Peduncle longer than but seldom twice the'length of the short petiole, flat- 

 tened; leaves tardily deciduous or partly persistent; berries black, xcith a 

 bloom. 



6. S. glauca Walt. (Saw Brier.) Terete branches and somewhat 4-an- 

 gular glaucous branchlets armed with scattered stout prickles, or naked ; leaves 

 ovate ^mveXj subcordate, glaucous beneath 2ir\^ sometimes also above (5-7 cm. 

 long), abruptly mucronate, the edges smooth and naked. — Dry thickets, e. 

 Mass. to Fla., w. to Tex. 



7. S. B5na-nox L. Branches and the angular (often S(iuare) liranchlets 

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

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

 berd-shaped or 3-iobed, green and shining both sides, cuspidate-jxiinted, the 

 margins often somewhat bristly-ciliate or spinulose. (S. tamnoides Man. ed. 6 ; 

 probably not L- ) — Thickets j Nantucket, Mass.; N. J. to Fla., w. to 111., Mo., 

 and Tex. 



