254 SOLANACE^E. 



Wet woods. Penn. to Car. W. to Miss. May, June. ^IStem a foot 

 high. Leaves 3 4 inches long, thin and smoothish. Flowers blue, in terminal 

 racemes. Jagged Phacelia. 



3. COSMANTHUS. Nolle. Cosmanthus. 



(Etymology uncertain.) 



Calyx 5-parted ; the sinuses naked. Corolla broadly cam- 

 panulate, caducous, 5-cleft; tube without scales. Filaments 

 slender, about as long as the corolla. Style bifid. Capsule 

 2-valved, septiferous in the middle. Seeds 4 10, ovoid- 

 angular. 



* Lobes of the corotta naked. 



1. C. parviflorus D.C. : stem diffuse, pubescent ; leaves subsessile, pinna- 

 tifid or trifid, hairy on both sides, the uppermost sometimes undivided ; lobes 

 of the lower ones ovate or oblong, entire ; racemes solitary. Phacelia par- 

 viflora Pursh. Polemonium dubium Wttld. 



Low grounds. Penn. Ohio, and Virg. May. (). Stem 6 8 inches high. 

 Flowers small, pale-blue ; lobes of the corolla rounded, entire, somewhat hairy 

 on the outside. Stamens hairy at the base. Small-flowered Cosmanthus. 



** Lobes of the corolla fimbriate. 



2. C. fimbriata Nolle : whole plant hairy ; stem ascending ; lower leaves 

 petiolate, pinnately divided, the segments few and entire ; upper sessile, pec- 

 tinate-pinnatifid ; the lobes oblong and entire ; racemes terminal, elongated, 

 few-flowered ; lobes of the calyx linear-lanceolate, half as long as the 

 corolla. (Z?. C.) Phacelia Jimbriata Mich. 



Low grounds. Penn. to Geor. W. to Miss. May, June. CD- Stem 8 12 

 inches high, ascending, slender, branched. Radical leaves with the lobes very 

 obtuse. Flowers pale-blue, in a simple terminal raceme, at first revolute, after- 

 wards erect. Fimbriate Cosmanthus. 



ORDER XC. SOLAKACE^E. NIGHTSHADES. 



Calyx 5- seldom 4-parted, persistent. Corolla with the limb 

 5- seldom 4- cleft, mostly regular, deciduous. Stamens inserted 

 upon the corolla, as many as the segments of the limb. Ovary 

 2 -celled ; style continuous ; stigma simple. Fruit a capsule or 

 berry. Seeds numerous, with the embryo straight or curved, 

 in fleshy albumen. Herbaceous plants or shrubs, with alternate 

 undivided or lobed leaves. Inflorescence various. 



* Fruit a berry. 



1. SOLANUM. Linn. Nightshade. 

 (Etymology uncertain.) 



Calyx 5 10-parted. Corolla rotate or subcampanulate ; 

 limb plaited, 5 10-cleft. Stnmens 5. Filaments very short; 



