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wide, entire, and with basal lobes entire or toothed); some pedate, having narrowly 
2 or 3-cleft lateral lobes or divisions; some more coarsely 3 to 5-parted, with Jobes 
entire or eoarsely sinuate-dentate; some early ones ovate or oblong-cordate and 
merely sinuate-dentate: peduncles 1 or 2-flowered, as long as the leaf: sepals 6 mm. 
long: corolla white or tinged with rose, 12 mm. long, the angles salient-acuminate. 
(C. lobatus Eng. & Gray Pl, Lindh.)—Dry prairies and hills, througnout Texas. 
5. BREWERIA R. Br. 
Perennial prostrate or diffusely spreading herbs, with small flowers 
more or less hairy or silky outside, 2 or rarely 3 simple and distinct 
styles (or united into one below), and depressed-capitate stigmas: other- 
wise as Convolvulus and Evolvulus. 
1. B. ovalifolia Gray. Sericeous-canescent: leaves ovate or oval, mostly subcor- 
date, 2.5cm. long: peduncles very short, 1-flowered: style 2-cleft above the middle: 
pod globose, 12 mm. in diameter, about as long as the broadly ovate sepals, by abor- 
tion l-seeded. (Hrolvulus? ovalifolius Torr. Mex. Bound.)—Southwestern borders 
of Texas. Corolla not seen. 
2. B. Pickeringii Gray. Soft-pubescent or smoothish: leaves very narrowly lin- 
ear or the lowest linear-spatulate, tapering to the base, nearly sessile: peduncles 
elongated, 1 to 3-flowered: bracts foliaceous and exceeding the flowers: sepals 
hairy: filaments and styles (united far above the middle) exserted from the open 
white corolla. (Bonamia Pickeringii Gray.)—Dry prairies, extending from Louisiana 
into Texas, but with unknown western limit. 
6. EVOLVULUS L. 
Low and small usually diffuse herbs or suffrutescent plants, with 5 
sepals naked at base, open funnelform or almost rotate corolla, 2 styles 
each 2-cleft, obtuse stigmas, and 2-celled 4-seeded pod. 
* Peduncles filiform, 1 to 3-flowered, mostly longer than the leaves. 
1. B. alsinoides L. Villous or hirsute: stems slender, diffuse or decumbent, 3 to 
6 dm. long: leaves from oval or oblong to lanceolate, somewhat petioled: pedicels at 
length nodding or retracted on the peduncle: corolla about 6 mm. broad.—Southern 
Texas. 
* * Peduncles or rather pedicels bibracteolate at base, solitary, and 1-flowered, short, 
usually very short. 
2. BE. sericeus Swartz. Sericeous excepting the glabrous upper leaf-surface: 
stems slender or filiform: leaves subsessile, lanceolate or linear-lanceolate, 12 to 20 
mm. long, erect or ascending, mucronate-acuminate or acute: silky pubescence fine 
and close-pressed, sometimes short, whitish or fulvous: sepals ovate-lanceolate: 
corolla white or pale-blue, 6 to 8 mm. in diameter. (#. holosericeus Torr. Mex, 
Bound. in part.)-—Throughout Texas, especially in the southern part. Nealley’s 
specimens from near Pena show flowers 10 to 12 mm. in diameter, 
3. E. argenteus Pursh. Many-stemmed from a somewhat woody base, dwarf, 
silky-villous all over: leaves crowded, broadly lanceolate, sessile, or the lower oblong- 
spatulate and short-petioled, about 12 mm. long: flowers almost sessile in the axils: 
corolla purple, 6 mm. broad.—Extending from the northern plains and prairies 
through Texas to Mexico, 
7. CRESSA L. 
A low canescent or silky-villous erect or diffuse perennial, with entire 
leaves, 5 nearly equal sepals, oblong-cainpanulate corolla-tube and limb 
