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ovate or spatulate-oblong, entire, subsessile, 12 mm, long, the upper floral shorter 
than the flowers: corolla pubescent, 12 mm. long, usually violet.—Throughout Texas. 
8. S. parvula Michx. Herbaceous: stolon-like rootstocks moniliform-tuberiferous : 
minutely downy, dwarf, 7.5 to 15 em. high, branched and spreading: all but the 
lower leaves sessile and entire; lowest round-ovate; others ovate or lance-ovate, 
slightly cordate, 12 to 16 mm. long: corolla 4 to 8mm. long.—Sandy banks, extending 
from New England to Texas. 
19. SALIZARIA Torr. 
Shrubby, with purplish flowers in short terminal racemes, globular 
(or at first oblong) barely repand-2-lipped calyx not appendaged or gib- 
bous on the back and much inflated after blooming becoming vesicular- 
inflated and reticulated; otherwise as in Scutellaria. 
1. S. Mexicana Torr. With diffuse or sarmentose slender soft-canescent branches, 
6 to 9 dm. high: leaves remote, glabrate, small, oblong or broadly lanceolate, short- 
petioled, mostly entire: flowers less than 2.5 cm. long: fructiferous vesicular calyx 
12 mm. or more in diameter.—Hills of the upper Rio Grande ( Havard), near the Great 
Cafion, and westward. 
20. BRAZORIA Eng. & Gray. 
Annuals, with oblong mostly sessile denticulate leaves (lowest taper- 
ing into a petiole), rose-purple flowers in virgate racemes or spikes, 
reticulate-veiny more or less inflated deeply 2-lipped calyx mostly de- 
clined in fruit (lips broad, upper 3-lobed and somewhat recurved, lower 
2-lobed and turned upward in fruit), corolla with inflated throat and 
broad barely concave upper lip, 4 fertile parallel and ascending stamens 
with outer pair longer, and anther-cells somewhat divergent. 
1. B. truncata Eng. & Gray. Somewhat pubescent, at least the raceme and calyx 
viscid-hairy: spike dense and strict: calyx much reticulated, truncate, its broad lips 
of equal length, obscurely lobed, mucronately denticulate: corolla 18 mm. long, all 
the lobes denticulate, tube pilose-annulate near the base: nutlets puberulent.—Sandy 
soil, plains and prairies of eastern and southern Texas. 
2. B. scutellarioides Eng. & Gray. Almost glabrous: spike or racemes loose, 
mostly panicled: lips of calyx unequal; upper with 3 ovate-rounded, lower with 2 
lanceolate lobes, all but uppermost cuspidate: corolla 8mm, long, not pilose-annu- 
late, its lobes entire or retuse: nutlets glabrous.—Rich prairie soil, southern and 
western Texas. 
21. PHYSOSTEGIA Benth. (FALSE DRAGON-HEAD.) 
Smooth perennials, with upright wand-like stems, sessile lanceolate 
or oblong mostly serrate leaves, large and showy (rose or flesh-color 
variegated with purple) flowers crowded in simple or panicled terminal 
leafless spikes, nearly equally 5-toothed short-tubular or bell-shaped 
calyx more or less enlarged and slightly inflated in fruit, funnelform 
2-lipped corolla with much inflated throat, and 4 stamens ascending 
under the upper lip with approximate anthers and parallel cells. 
1. P. Virginiana Benth. Stem 3 to 12 dm. high, terminated by a simple virgate 
or several panicled spikes: leaves thickish: calyx tubular-campanulate, its teeth 
half the length of the tube: corolla 2.5 cm. long.--Wet grounds, extending from the 
