DICOTYLEDONOUS PLANTS 199 



I. LYCIUM, L. 



Shrubs or woody Tines, often spiny. Leaves entire, alter- 

 nate, often fascicled. Flowers solitary or clustered, terminal 

 or axillary. Calyx persistent, 4-5-lobed or toothed, not en- 

 larged in fruit. Corolla funnel-form or bell-shaped, the limb 

 4-5-lobed, the lobes obtuse. Stamens 4-6, projecting. Ovary 

 2-celled; style single; stigma obtuse. Fruit a many-seeded 

 berry.* 



1. L. vulgare, Dunal. Matrimony Vine. Stem slender, branch- 

 ing, twining or trailing, 6-15 ft. long; branches angled, spiny. 

 Leaves elliptical, smooth, entire, sessile, or short-petioled. Flowers 

 solitary or few in the axils ; peduncles long and slender. Corolla 

 spreading, greenish-purple, |-J in. wide. Berry oval, orange-red. 

 Introduced from Africa, and often planted for covering trellises.* 



n. SOLANUM, Toum. 



Herbs or shrubs ; stems often prickly, sometimes climbing. 

 Leaves alternate, often nearly or quite opposite. Flowers 

 clustered, the peduncles often opposite or above the axils. 

 Calyx spreading, 5-toothed or 5-cleft,'" persistent. Corolla 

 wheel-shaped, 5-lobed. Stamens 5, projecting, the filaments 

 very short, the anthers long and meeting about the style. 

 Ovary 2-celled; style slender. Fruit a many-seeded, juicy- 

 berry.* 



1. S. Dulcamara, L. Bittersweet. Perennial. Stems rather 

 shrubby, long, and chmbing. Leaves heart-shaped, or some of theih 

 with irregular lobes, or ear-lite leaflets at the base. Flowers "blue 

 or purple, somewhat cymose. Berries showy, of many shades of 

 orange and red in the same cluster, according to their maturity. 



2. S. nigrum, L. Nightshade. Annual; stem smooth, br 

 downy with simple hairs, erect, diffusely branched ; branches wiilg- 

 angled, 1-3 ft. high. Leaves ovate, irregularly toothed or entire, 

 somewhat inequilateral, petioled. Flowers in lateral, peduncled um- 

 bels, small, white, drooping. Calyx-lobes obtuse ; corolla |-^ in. 

 wide ; filaments downy ;• berries globose, smooth, black when ripe. 

 Common in cultivated fields and waste places.* 



3. S. carolinense, L. Horse Nettle. Perennial; stem erect, 

 branched, downy with star-shaped hairs, armed with straight, yellow 

 prickles, 1-3 ft. high. Leaves ovate-oblong, deeply toothed or lobed, 



