Vol. III.] 



POTATO FAMILY 



2. Solanum trifldrum Nutt. Cut- 

 leaved Nightshade. (Fig. 3212.) 

 Solatium triflorum Nutt. Gen. 1: 128. 1818. 



Annual, sparingly pubescent with simple hairs, 

 or glabrous; stem branched, i-3 high. Leaves 

 pinnatifid, or some of them pinnately lobed, 

 acute at the apex, petioled, i'-\' long, the lobes 

 triangular-lanceolate, acute or obtuse, entire or 

 dentate, the sinuses rounded; peduncles lateral, 

 1 -3 -flowered, ffl-i' long; pedicels 3 // ~7 // long, 

 reflexed in fruit; calyx-segments lanceolate, 

 shorter than the corolla, persistent at the base of 

 the berry; corolla white, 4 // ~5 // broad; anthers 

 obtuse; berries green when mature, globose, 

 smooth and glabrous, about 5" in diameter. 



On prairies and in waste places, western Ontario 

 to the Northwest Territory, south to Nebraska and 

 Arizona. May-Oct. 



3. Solanum Carolinense 



Horse-Nettle. (Fig. 3213.) 



Solanum Carolinense L- Sp. PI. 184. 1753. 



Perennial, green, finely stellate-pubescent 

 with 4-8-rayed hairs; stem erect, branched, 

 i-4 high, the branches, petioles, midveins 

 and sometimes the lateral veins of the leaves 

 armed with straight subulate yellow prickles. 

 Leaves oblong or ovate, repand, lobed, or pin- 

 natifid, 2 / -6 / long, the lobes obtuse or acutish; 

 petioles 3 // -io // long; flowers cymose-race- 

 mose, appearing terminal, but really lateral, 

 as is manifest in fruit; pedicels 3 // ~7 // long, 

 recurved in fruit; calyx-lobes lanceolate, 

 acuminate, about one-half the length of the 

 corolla, persistent at the base of the berry; 

 corolla-lobes ovate-lanceolate, acute; anthers 

 elongated; berries orange-yellow, smooth and 

 glabrous, 8 // -io // in diameter. 



In dry fields and in waste places, southern On- 

 tario to Connecticut and Florida, west to Illinois, 

 Nebraska and Texas. Called also Apple of 

 Sodom. May-Sept. 



4. Solanum elaeagnifolium Cav. 

 Silver-leaved Nightshade. (Fig. 3214.) 

 5". elaeagnifolium Cav. Icon. 3: 22. pi. 24J. 1794. 



Perennial, densely and finely stellate-pubes- 

 cent, silvery-canescent all over; stem branched, 

 i-3 high, armed with very slender sharp prick- 

 les, or these wanting. Leaves lanceolate, ob- 

 long, or linear, petioled, \'-\' long, ^"-xi" 

 wide, mostly obtuse at the apex, narrowed or 

 rounded at the base, repand-dentate or entire; 

 flowers cymose, 8 // -i2 // broad, violet or blue; 

 peduncles short and stout, appearing terminal, 

 but soon evidently lateral; calyx- lobes lanceo- 

 late or linear-lanceolate, acute; anthers linear; 

 ovary white- tomentose; berries globose, yellow 

 or darker, smooth and glabrous, 4 // -6 // in diam- 

 eter. 



On dry plains and prairies, Kansas to Texas and 

 Arizona. May-Sept. 



