714 SOLANACEAE (NIGHTSHADE FAMILY) 



American genus dedicated to Isidore Saracha, a Spanish Benedictine ; the prefix 



i, on the ground, i.e. dwarf.) 



1. C. s6rdida (Dunal) Gray. Much branched from root or base, somewhat 

 cinereous with short viscid pubescence ; leaves obovate-spatulate or cuneate- 

 oblong to oblanceolate, repand to incisely pinnatifid ; calyx when young villous- 

 viscid ; corolla pale yellow or violet-purple, 1-1.5 cm. broad; berry as large as 

 a pea. (C. conioides Britton.) Dry or clayey soil, Kan. to Tex. and Ariz. 



3. PHYSALIS L. GROUND CHERRY 



Calyx 5-clef t, reticulated and enlarging after flowering, at length much inflated 

 and inclosing the 2-celled globular (edible) berry. Corolla between wheel-shaped 

 and funnel-form, the very short tube marked with 5 concave spots at the base ; 

 the plaited border somewhat 5-lobed or barely 5-10-toothed. Stamens 5, erect ; 

 anthers separate, opening lengthwise. Ours herbs with extra-axillary pedun- 

 cles ; flowering through the summer. (Name <f>v<ra\ls, a bladder, from the 

 inflated calyx.) 



a. Corolla large, white with pale yellow center ; calyx neither angled nor 



ribbed 1. P. grandiflora. 



a. Corolla lurid, greenish or yellowish-white to deep yellow with dark 



center b. 

 b. Annual c. 



o. Glabrous or merely puberulent. 



Corolla 1-2.5 cm. broad 2. P. ixocarpa. 



Corolla 4-10 mm. in diameter. 



Teeth of leaves acuminate .3. P. angulata. 



Teeth of leaves obtusish (6) P. barbadensis, v. obscura, 



0. Villous or pubescent, hairs simple, viscid or glandular. 



Fruiting calyx carinately 5-angled, its teeth during anthesis 



lanceolate. 



Fruiting calyx subglobose-ovoid, rather abruptly pyramidal at 

 summit. 



Plant green 4. P. pubescens. 



Plant somewhat hoary 5. P. pruinoxa. 



Fruiting calyx flask-shaped, gradually conic-pyramidal at summit 6. P. barfnuli-nxi^. 

 Fruiting calyx not sharply angled, its teeth deltoid during anthesis 7. P. missourienxix. 

 b. Perennial d. 



d. Canescent, covered with short dense stellate tomentuin . . 8. P. viwHti. 



d. Pubescence loose ; hairs once or twice branched . . . . 9. P. pum ila. 

 d. Hairs simple or none. 



Fruiting calyx scarlet 10. P. Alkekengi. 



Fruiting calyx greenish. 



Leaves broadly ovate, rounded or cordate at base ; viscid- 

 pubescent 11. P. heterophyUa. 



Leaves narrowly ovate to oblong or lanceolate, cuneate at base. 

 Nearly glabrous ; leaves 4-5 times as long as broad . . 12. P. l<>n<jif<>n<i. 

 Strigillose to villous-pubescent ; leaves l%-3 times as long as 

 broad. 



Stem and branches strigillose 13. P. subglabrata. 



Stern and branches spreading-villous, retrorsely puberulent 



or glandular-pulverulent 14. P. vtrffiniana. 



Stem and branches hirsutulous 15. P. lanceolafa. 



1. P. grandiflbra Hook. Clammy-pubescent, erect ; leaves lance-ovate, 

 pointed, entire or nearly so corolla 2.5-5 cm. wide, white, with a pale y<>U"' 

 center, woolly in the throat ; fruiting calyx globular. (Leucophysalis Rydb. ) 

 Recent clrarings and sandy shores., e. Que. to the Saskatchewan, s. to L. 

 rhainplain, Mich., Wise., and Minn. 



J. P. IXOC.VKPA Hrotero. (TOMATILLO.) Erect branching annual, 2-'. <lin. 

 high, glabrous or merely puberulent ; leaves entire to sharply si)ni<tt<'-</<iitnfi; 

 peduncles :i-<5 nun. long, distinctly shorter than the flowers ; calyx-teeth deltoid ; 

 corolla 1-2.5 rw. wide. Inritl. i^lhurish or greenish, with dark center. (P. aeqmitu 

 Jacq. f . ) Often cultivated and frequently spontaneous. (Introd. from the 

 Southwest.) The large purple fruit often bursts the calyx. P. pcmht/ti Rydb. 

 appears to be a smaller-flowered long-peduncled extreme f ound from 111. ( Vasey} 

 south w. and west.w. 



'\. P. angulata L. Mnr.h branched; leaves ovate or ovate-oblong, sharply 

 and irregularly Inrin inte-toothed; peduncles filiform; corolla unspotted, very 



