SOLAN ACE AE '(POTATO family) 43^ 



103. SOLANACEAE Pers. Potato Family 



Ours all herbs of various habit, with alternate or more rarely opposit« 

 leaves without stipules. Flowers regular and perfect. Calyx S-lobed. Corolla 

 sympetalous, more or less 5-lobed, variously arranged in bud but mostly 

 plicate. Stamens 5, inserted on the tube and alternate with the corolla- 

 lobes. Style arid stigma single; the ovary mostly 2-celled and many-ovuled 

 on a central placent^. Fruit a berry or capsule. 



Frilit a berry. - > 



FruitinK calyx bladdery-mflated; anthers distinct. ^ 



Corolla yellow or lighter, often with darker center . . .1. Physahs. 



Corolla purple 2. Quincula. 



Fruiting calyx closely investing the fruit . '- . . .3. Chamaesaracha, 



Fruiting calyx not enlarged; anthers connivent . . . .4. Solanum. 

 Fruit a capsule. . 



Capsule priokljf 5. Datura. 



Capsule not prickly . . . 6. Nicotiaha. 



1. FHYSALIS L. Ground Chbbey 



Herbaceous annuals or perennials, with entire or sinuate-toothed leaves and 

 solitary, axillary, pedimculate flowers. Calyx becoming much enlarged, and 

 membranaceous-inflated,- completely and loosely infclosing the fruit, reticulate- 

 veiny and 5-angled or 10-costate. Corolla white or yellow, of ten with a dark 

 center, rotate or rotate-campanulate, 5-anguIate or obscurely 5-lobed. Stamens 

 inserted near the base of i the corolla; the anthers longitudinally: dehiscent. 

 Style slender, somewhat bent. .Berries juicy, greenish, red, or yellow, with 

 numerous flattened seeds. ,, 



Annuals. 



Densely pubescent; corolla and berry yellow . . ^ . 1. P. neo-mexicana. 

 Glabrous or nearly so; corolla yellow with purple center; terry 



purple ,. . ,2. P. ixocarpa. 



Perennials.. 

 ,Pubescehce simple or wanting (branched in no. 7). 



Leaves ' glabrous. 

 , ,, : Corolla yellow with purplish throat; berry red or purple . 3. P. philadelphica. 

 Corolla, yellow with Drownish cenW; berry yellow , , 4. P. longif olia. 

 Leaves sparsely pubescent with flat hairsl' 



Corolla yellow with brownish center , ,. '.' ; , 6.. P. la;iceolata. 

 Corolla greenish-yellow with dark green spots . , . . 6. P. polyphylla. 

 Leaves pubescent, the hairs branched on the lower surface' . 7. P. pumila. 

 Pubescence branched. ' ' ' 



Pubescence dense and "viscid-glandular. 

 Leaves lar^e (5 cm. or more long), cordate-ovate; pubescence 



long-villous 8. P. heterophylla. 



Leaves smaller, reniform-cordate, flneljr viscid-pubescent . 9. P. hederaefolia. 

 Leaves siibrotund, densely glandularrviscid ' . . . 10. P. rotundata. 

 Pubescence stellate 11. P. Fendleri. 



1. Physalis neo-mezicaiia Rydb. Mem. Torr. Bot. Club 4: 325. 1896. 

 Stem stout and strict, obtusely angled; pubescence fine, dense, short, scarcely 

 viscid: leaves 3-5 cm. long, rather thick, broadly ovate or orbicular, very 

 obtuse, often subcordate, sinuately crenate: pedUmcles less than 2 cm. long; 

 calyx-lobes finely pubescent, lanceolate; calyxi in fruit rather firm, sharply 

 angled, sunken at the basfe. P. pubescens in part.^ — Southern Colorado and 

 southward. 



2. Physalis ixocarpa Brot. Homeman, Hort. Hafn. Suppl. 26. 1819. 

 In age much branched and widely spreading; stem angled, glabrous, sparingly 

 hairy on the branchlets: leaves cordate to ovate, base cuneate and obUque, 

 entire or sinuate, 3^ cni. long: calyx slightly hairy; the lobes broadly trian- 

 gular, shorter than the tube: corolla bright yellow with purple throat: fruit- 

 ing calyx rounded-ovatie, ' obscurely 10-angled, often purple-veined, at last 

 nearly filled by the purple berry. — Probably reaching our range from the 

 southwest. ' ; i 



3. Physalis philadelphica Lam. Enc. Meth. 2: 101. 1786. The dichot- 

 omously branched stem angled, erect, 5-10 dm. high:. leaves ovate, or nar> 



