88 SOLANACEiE. (POTATO FAMILY.) 



Yar. longiloba, Engel. Flowers IJ to 2^ lines long; calyx-lobes often with reciirved 

 tips; capsule mostly only 1 -seeded, enveloped by the withered corolla. 



* * Capnule pointed, capped or enveloped by the withered corolla. 



2. C. salina, Engel. Flowers 1^ to 2^ lines long delicate white; corolla lobes often 

 overlapping, denticulate; capsule surrounded but not capped by the corolla, usually 

 1-seeded. — Growing in saline marshes, usually on Salicornia. 



3. C. subinclusa, Dur. & Hilg. Flowers sessile or nearly so (at length in large 

 clusters), 2^- to 4 lines long; lobes of the corolla short, the tube somewhat urn-shaped, 

 only partly covered by the fleshy, usually reddish calyx.— The most common species 

 growing on coarse herbs and shrubs. 



Order 42. SOLANACEiE. 



Herbs or shrubs, with alternate leaves and no stipules, regular 5-merous flowers on 

 bractless pedioels, a single style and a 2-celled ovary; tlie fruit a many-seeded berry or 

 capsule. 



Corolla rotate; fruit a berry Solanum. 1 



Corolla funnel-form; cajjsule large, spiny Datura. 2 



Corolla funnel-form; capsule smooth Nicotiaiia. 3 



1. SOLANUM, Tourn. 



Lobes of the corolla valvate in the bud. Filaments short; anthers usually conniving. 

 Style elongated. 



* Corolla small, ivldte ; deephj 5-cleft. 



1. S. nigrum, L. (Black NionTsnADE.) Widely branching; leaves usually ovate 

 and sinuate toothed; flowers in umbellate clusters; berries black. Variable. 



Var. Douglasii, Gr. Leaves apt to be coarsely toothed; flowers sometimes half an 

 inch broad. 



* * Corolla lar(je, blue, 5-anyled. 



2. S. umbelliferum, Esch. Somewhat shrubby; flowers in iimbel-like clusters, 

 violet-blue to rarely white, about 9 lines broad. — A variable species similar to *S'. Xanti 

 (which is less shrubby and has larger flowers), a common species farther south. 



2. DATURA, L. Stramonium. 



Calyx prismatic, partly deciduous. Corolla with ample 5-pointed limb. Style long; 

 stigma 2-lipped. Capsule spiny. 



1. D. Stramonium, L. Smooth, green; corolla white, about 3 inches long; cap- 

 sule beset with short stout prickles, the lower shorter. 



