HYDROPHYLLACEiE 121 



corolla gajnopetalous, generally 5-lobed, mostly rotate; stamens as 

 many as the loljes of the corolla, alternate with them and inserted 

 on the tube, all equal and perfect; style slender and simple; ovary 

 superior, 2-celled, many-seeded. 



1. SOLANUM. Nightshade. 



Calyx 5-parted; corolla wheel-shaped, 5-parted; stamens 5, 

 exserted from the short corolla tube, the anthers converging around 

 the style forming a sort of beak; fruit a berry, usually 2-eelled. A 

 very large genus, but mostly warm climate plants, represented with 

 us by a few spreading annual herbs. 



1. S. trifldrum, Nutt. 



Low, spreading; leaves pinnatifid; peduncles 1-3-flowered; corolla white ; 

 fruit green, turning whitish, about the size of a cherry, but resembling the 

 tomato. A common weed. Man.-Alta. 



2. S. nigrum, L. Common Nightshade. 



More glabrous, stem rough on the angles; leaves wavy-toothed; flowers 

 white, in umbel-like clusters; fruit black. Rich shady ground, local, Man.- 

 Alta. 



LXXVI. HYDROPHYLLACEiE. Waterleap Family. 



Hairy herbs with alternate leaves, and regular flowers in racemes, , 

 spikes, or heads. Calyx and corolla each , 5-parted ; stamens 5, 

 inserted on the base of the corolla tube alternate with the lobes; 

 ovary superior, 2-oelled or 1-celled with 2 placentse; styles 2, some- 

 times partly united ; stigma small. 



1. PHACEEIA. 



Calyx somewhat inflated in fruit; corolla bell-shaped, wheel- 

 shaped, or funnel-shaped, often with appendages opposite the lobes ; 

 ovary 1-celled with 2 placentae. Annual or biennial hairy herbs 

 with alternate, entire, toothed, pinnatifid, or dissected leaves, and 

 blue, purple, or white showy flowers. 



1. P. lineiiiis, (Pursh.) Holz. (P. Menziesii, Torr.) 



Stem 4-12 in. high, branched; leaves linear or lanceolate and entire, 

 or some deeply cleft; flowers violet or white, in spikes or racemes which are 

 curved at first but afterwards erect. S. Alta. and Rocky Mts. iii Crow's 

 Nest Pass. 



