238 SOLANACE.E. 



■Lycium. 



# # Indigenous, southern and western : berries red or reddish (one species excepted), globular, 

 -t— Large-flowered : f unnelform corolla nearly an inch long. 

 L. pallidum, Miers. Glabrous : stems and branches widely spreading, 2 to 4 feet high, 

 spiny : leaves pale, spatulate and oblanceolate, an inch or two long : pedicels about 

 equalling the deeply 5-cleft calyx : corolla greenish, tinged with purple ; the lobes broad 

 and rounded: filaments exserted: anthers tipped with a deciduous point. — 111. 1. c. 108, 

 t. 67; Torr. Bot. Mex. Bound. 154; Gray, Proc. Am. Acad. vi. 45.— New Mexico and Ari- 

 zona : also S. Utah, Fremont, Fendler, &c. 



+- -I— Large calyx, with lobes commonly longer than or equalling the tube, foliaceous and obtuse : 

 corolla half inch long or less : stamens included : herbage puberulent. 



■h* Flowers 4-merous. 



L. Palmeri, Gray. Apparently unarmed, with slender branches : leaves narrowly spat- 

 ulate : flowers short-pedicelled, 4 or 5 lines long: calyx-lobes lanceolate, equalling the 

 oblong-campanulate tube of the corolla, which is little longer than its oval lobes. — Proc. 

 Am. Acad. viii. 292. — Yaqui River, W. Sonora, Mexico, added because it may reach 

 Arizona. 



++ ++ Flowers 5-merous : corolla-lobes ovate, short, recurved-spreading. 



L. Cooperi, Gray. Branches stout, and with some very short spines ; leaves spatulate, 

 minutely viscid-pubescent or puberulent, half inch or more in length : pedicels at least 

 equalling the cylindraceous at length campanulate calyx, both hirsute or pubescent ; the 

 oblong-lobes of the latter more or less shorter than the tube : corolla narrowly funnelform, 

 apparently white, half inch long, its lobes obtuse : filaments hairy at base : anthers oval, 

 mucronulate. — Proe. Am. Acad. vii. 388, & Bot. Calif. 542. South-eastern border of Cali- 

 fornia and adjacent part of Arizona, Cooper, Palmer. 



Var. pu.bifl.6ra. Corolla strongly pubescent outside : calyx shorter. — On the Mohave 

 River, with the ordinary form, Palmer. 



L. puberulum, Gray. Stem 2 to 4 feet high, with slender divergent and spinescent 

 branches : leaves obovate and oblong-spatulate, a quarter to half inch long, minutely and 

 densely puberulent : flowers solitary and sessile in the fascicles of leaves : calyx-lobes 

 oblong, much shorter than the tube of the corolla, twice the length of their own tube : 

 corolla 4 or 5 lines long, tubular-funnelform, white, with the triangular-ovate acute lobes 

 not longer than the abruptly dilated throat and tinged with greenish-yellow : filaments 

 glabrous, inserted in the throat : anthers roundish-cordate. — Proc. 1. c. vi. 46. — Borders of 

 Texas and New Mexico, on the Rio del Norte, near El Paso, Wright. 



L. macrodon, Gray, 1. c. Spiny: leaves spatulate-oblanceolate, glabrate, 2 to 4 lines 

 long : pedicels at most a line and a half long : lobes of the minutely viscid calyx narrowly 

 linear, twice the length of the short campanulate tube (3 lines long), half the length of 

 the narrow corolla : filaments a little hairy at base : anthers oval-oblong. — California or 

 Nevada 1 Fremont, 1849 : not since seen. 



4— 4— +- Short-flowered ; the tube and throat of corolla only a line or two long, and the limb 

 comparatively large : calyx with short lobes or teeth or irregularly cleft : herbage glabrous or 

 nearly so. 



++ Corolla comparatively large, nearly half inch in diameter : leaves fleshy. 



L.-Carolinianum, "Walt. Glabrous, 2 or 3 feet high, widely spreading, spiny: leaves 

 linear-spatulate or so thickened as to be clavate, an inch or less long : pedicels slender : 

 flower 4-5-merous : calyx short, irregularly cleft in age : corolla purple, its almost rotate 

 limb deeply parted into oval lobes : slender filaments (woolly at base) and style elongated. 

 — Car. 84 ; Michx. PI. i. 95 ; Miers, 1. c. t. 71. L. salsum, Bartr. Trav. 9. — Salt marshes, 

 S. Carolina to Texas. 



++ ++ Corolla small ; the expanded limb under 3 lines wide, about equalled by the stamens : 

 pedicels a line or two long or none : branches more or less spinescent : leaves linear-spatulate. 



L. Calif ornicum, Nutt. Slender stems very much branched, 2 feet high : leaves thick- 

 ish and apparently fleshy-coriaceous, very small (1 to 3 lines long), from obovate or spat- 

 ulate to nearly linear : pedicels sometimes hardly any : tube of the white corolla included 

 in the campanulate 4-toothed calyx ; its rotate 4-parted limb barely 2 lines in diameter. — 

 Gray, Bot. Calif, i. 542. — Clayey hill-sides, California, near San Diego, Nultall (without 

 flowers), Clevela-id, Palmer. (Islands of Lower California.) 



