714 SOLrANACBAE (^NIGHTSHADE FAMILY^ 



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

 xa/ioi, on the ground, i.e. dwarf.) 



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

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

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

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

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



3. Pff^SALIS L. Ground Cherkt 



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 S-lO-toothed. Stamens 5, erect ; 

 anthers separate, opening lengthwise. — Ours herbs vrith extra^axillary pedun- 

 cles ; flowering through the summer. (Name ■^uiroXis, a bladder, from the 

 inflated calyx.) 



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



ribhed 1. P. gnmd^flora, 



a. Corolla lurid, greenish or yellowlsh-whtte to deep yellow with dark 

 center 6. 

 6. Annual c. 



0. Glabrous or merely puberalent. 



Corolla 1-2.5 cm. broad . , Z. P. iaoearpa. 



Corolla 4-10 mm. In diameter. 



Teeth of leaves acuminate 8. P. angulata. 



Teeth of leaves obtusish (6) i*. harhadensis, v. ohscurct 



V. Villous or pubescent, hairs simple, viscid or glandnlar. 



Fruiting calyx carinately 5-angled, its teeth during anthesis 

 lanceolate. 

 Fruiting calyx subglobose-ovoid, lather abrapfJy pyramidal at 

 summit. 



Plant green , . • . 4. P. pubescent. 



Plant somewhat hoary 5. P. pruinosa. 



Fruiting calyx flask-shaped, gradually conlc-pyramldal at summit 6. P, barbadeasis 

 Fruiting calyx not sharply angled, its t«eth deltoid during anthesis 7. P. mUsowriemda 

 6. Perennial d, 

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

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

 d. Hairs simple or none. 



Fruiting calyx scarlet . 10. P. AVceh&tvgi. 



Fruiting calyx greenish. 

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

 pubescent 11. P. heteroph/yUa 



(eaves narrowly ovate to oblong or lanceolate, cuneate at base. 

 Nearly glabrous ; leaves 4-5 times as long as broad . . 12. P. longifoUa. 

 Strlgillose to villous-pubescent ; leaves ]^^-3 times as long as 

 broad. 



Stem and branches striglllose 18. P. subfflabrata. 



Stem and branches spreading-viUous, retrorsely puberulent 



or glandular-pulverulent 14. P. virginiana. 



Stem and branches hirsutulous . . ... 15. P. lanceolata. 



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

 pointed, entire or nearly so; corolla 2.6-5 cm. wide, white, loith a pale yellow 

 enter, woolly in the throat ; fruiting calyx globular. (^Leucophysalis Rydb. ) — 

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

 Chamnlain, Mich., Wise, and Minn. 



2. P. ixooArpa Brotero. (Tomatillo.) Erect branching annual, 2-9 dm. 

 high, elaorous or merely puberulent ; leaves entire to sharply sinuate-dentate ; 

 peduncles 3-8 mm. long, distinctly shorter than tlie flowers ; calyx-teeth deltoid ; 

 corolla 1-2.5 cm. wide, lurid, yellowish or greenish, with dark center. (P. aequata 

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

 Southwest.) — The large purple fruit often bui-sts the calyx. P. pendula Rydb. 

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

 southw. and westw. 



3. P. angulJlta L. Much branched ; leaves ovate or ovate-oblong, sharply 

 and irregularly laciniate-toothed ; peduncles filiform ; Qorolla unspofted, vertj 



