SOLANACEAE (POTATO FAMILY) 435 



11. Physalis Fendleri Gray, Proc. Am. Acad. 10: 66. 1874. Perennial 

 from a fleshy roptstock, 2-5 dm. high; pruinose-puberulent, the pubescence 

 minute, partly simple, partly branched or stellate, sometimes a little glan- 

 dular: leaves small, deltoid-ovate or slightly cordate to ovate-lanceolate, with 

 abrupt base, the margins repand-undulate to coarsely sinuate-toothed : corolla 

 about 12 mm. broad: fruiting calyx rounded-ovate: berry yellow. Dry rocky 

 plains; Colorado to Mexico. 



2. QUINCULA Raf. 



A low perennial herb, with subfleshy sinuate or pinnatifid leaves and mostly 

 paired, pedunculate, axillary flowers. The angulate, reticulate calyx inflated 

 and with connivent lobes, inclosing the fruit. Floral characters much as in 

 Physalis, but the veiny corolla rotate, violet or purplish. The kidney-shaped 

 seeds rugose-reticulate. 



1. Quincula lobata (Torr.) Raf. Atl. Journ. 145. 1832. Low, small and 

 diffusely branched, young parts (or on stalks and calyx densely) scurfy- 

 granuliferous, otherwise quite glabrous: leaves oblong-spatulate or oboyate, 

 repand to sinuate-pinnatifid, the base cuneately tapering into a margined 

 petiole: corolla violet, the center with a 5 or 6-rayed white woolly star: 

 globular-inflated fruiting calyx strongly 5-angled. Physalis lobata Torr. 

 From Kansas through Colorado to California. 



3. CHAMAESARACHA Gray 



Perennials, with mostly narrow entire or pinnatifid leaves tapering into 

 margined petioles and filiform naked pedicels solitary in the axils and re- 

 fracted or recurved in fruit. Calyx herbaceous, open at the mouth but closely 

 investing the berry and not ribbed or angled. Corolla rotate, 5-angulate. 

 Filaments filiform, with separate oblong anthers. 



1. Chamaesaracha coronopus (Dunal) Gray, Bot. Cal. 1: 540. 1876. 

 Green, almost glabrous, or beset with some short and rough ish hairs, diffusely 

 very much branched: leaves lanceolate or linear with cuneate-attenuate base, 

 varying from nearly entire to laciniate-pinnatifid : peduncles elongated: calyx 

 more or less hirsute (hairs often 2-fprked at tip), the lobes triangular, acute: 

 corolla yellowish: berry 5-8 mm. in diameter, nearly white. From Utah 

 through Colorado to Texas. 



2. Chamaesaracha conioides (Moricand) Brit. Mem. Torr. Bot. Club 5: 

 287. 1895. Cinereous with short-viscid pubescence: leaves obovate-spatulate 

 or cuneately oblong to oblanceolate, repand to incisely pinnatifid: calyx 

 when young villous- viscid: corolla pale yellow or sometimes violet-purple. 

 C. sordida Gray. Rare in our range; Colorado and southward. 



4. SOLANUM L. NIGHTSHADE AND POTATO 



Ours are herbs with simple or rarely pinnate alternate leaves. Peduncles 

 usually solitary, axillary or extra-axillary, few-flowered. Calyx 5-parted or 

 cleft, unchanged but often enlarged in fruit. Corolla rotate, with plicate 

 5-lobed limb and very short tube. Stamens inserted on the throat by short 

 filaments; the anthers connate, forming a cone, usually dehiscent by a ter- 

 minal pore. Fruit a 2-celled berry. 



Pinnate-leaved perennial 1. S. Jamesii. 



Simple-leaved; annuals except No. 6. 

 Plant not prickly. 



Peduncles 1-3-flowered; ripe berry green . . . . 2. S. triflorum. 



Peduncles bearing small umbel-like cymes; ripe berry black . 3. S. nigrum. 

 Plant prickly. 



Fruit inclosed in the prickly calyx. 



Plant stellate-pubescent; flowers yellow . . . . 4. S. rostratum. 

 Plant glandular-pubescent; flowers violet . . . . 5. S. heterodpxum. 

 Fruit naked; flowers violet, blue, or white . . . . 6. S. elaeagnifoliuru. 



