714 SOLANACEAE (NIGHTSHADE FAMILY^ 



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

 xo-t^h of^ the (/mund, i.e. dwarf.) 



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

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

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

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

 a pea. (0. coniuides Britton.) — Dry or clayey soil, Kan. to Tex. and Ariz. 



3. PHYSALIS L. Ground Cherry 



Calyx 5-cleft, 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 ; 

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

 cles ; flowering through the summer. (Name (pvaaXis, a bladder, from the 

 inflated calyx.) 



a. Corolla large, white wth pale yellow center ; caljrx neither angled nor 



ribbed 1. P. grandifloro, 



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

 center b. 

 h. Annual c. 



c. Glabrous or merely pubernlent. 



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. barbadeJisis, v. obscura, 



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



Fruiting calyx carinately 5-angled, its teeth during anthesis 

 lanceolate. 

 Fruiting calyx subglobose-ovoid, lather abruptly pyramidal at 

 summit. 



Plant green 4. P. pubescens. 



Plant somewhat hoary 5. P. pnUnosa. 



Fruiting calyx flask-shaped, gradualh' conic-pyramidal at summit 6. P. barbadensis. 

 Fruiting calyx not sharply angled, its teeth deltoid during au thesis 7. P. missourieiuia, 

 h. Perennial d. 



d. Canescent, covered with short dense stellate tomentum . . . 8. P. viscosa. 

 d. Pubescence loose ; hairs once or tmce branched . . . . 9. P. pumila. 

 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. heterophylla. 



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



Nearly glabrous ; leaves 4-5 times as loner as broad . . 12. P. longifolia. 



Strigillose to villous-pubescent ; leaves 1^-3 times as long as 

 broad. 



Stem and branches strigillose 13. P, subglabrata. 



Stem and branches sproading-villous, retrorseh' puberulent 



or glandular-pulverulent 14. P. virgininna. 



Stem and branches hirsutulous 15. P. lanceolata. 



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

 pointed, entire or nearly so ; corolla 2.5-5 cm. wide, lohite, toith a pale yellow 

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

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

 Champlain, Mich., Wise, and Minn. 



2. P. ixocArpa Brotero. (Tomatillo.) Erect branching annual, 2-0 dm. 

 high, glabrous or merely puberulent ; leaves entire to sharply sinnate-dentate ; 

 peduncles Z-iS mm. long, distinctly shorter than the flowers ; calyx-teeth deltoid ; 

 corolla 1-2.5 cm. wide., lurid, yelloioish or greenish, icith dark center. (P. aequnta 

 Jaccj. f . ) — Often cultivated and frequently spontaneous. (Tntrf)d. from the 

 Southwest.) — The large purple fruit often bursts the calyx. P. pendula Rydb. 

 appears to be a smaller-flowered long-peduncled extreme found from 111. ( Vasey) 

 southw. and westw. 



Z. P. angulata L. Much ])ranched ; leaves ovate or ovnte-oblong, sharply 

 and irregularly laciniate-toothed ; peduncles filiform; corolla unspott(d, vrry 



