470 ORDKR XCI. LABIATE. 



pubescent. Calyx pubescent, with short segments. Corolla larcre. — 

 Bright purple. U. June — July. Mountain meadows. 2 — Sleet. 



2. D. vauiega'tum, (Pursh.) Stem glabrous, square, Avith cartilagin- 

 ous angles. Leaves sessile, oblong-lanceolate, toothed toward the sum- 

 mit, glabrous, lower ones alternate at tlie base, Floioers in short spikes. 

 Bracts ovate, pubescent. Calyx pubescent. Corolla pubescent, infla- 

 ted, the upper lip large, the middle segments of the lower lip streaked. 

 — Bright purple. %. May — June. Wet soils. 2 — 3 feet. 



3. D. denticula'tum, (L.) Stem glabrous, or minutely [lubescent at 

 the summit. Leaves sessile, ovate-lanceolate, glabrous, slightly toothed. 

 Flowers in long spikes. Bracts subulate, finely pubescent. Calyx with 

 the teeth nearly equal, pubescent. Lower lip of the corolla variegated. 

 — Purple. If. June — Jul}*. Mountains. 10 — ^12 inches. 



4. D. obova'tum, (Ell.) Stem erect, pubescent at tlie summit, gla-"" 

 brous below. Leaves obovate, sessile, cuneate, toothed at the summit. 

 Floiccrs in short spikes. Bracts very sm;ill, pubescent. Calyx and co- 

 rolla pubescent. — Purple. If. May — July. Southern Georgia. 12 

 — 15 inches. 



Genus XVIL— CEDROXEL'LA. Moench. 13—1. 

 (From kedros, cedar, from the odor of its leaves.) 



Cali/x tubular or campanulate, oblique, 5-toothed. Corolla 

 expanding, bilabiate ; upper lip 2-lobed, lower lip 3-cleft, spread- 

 ing. Stamens 4. 



1. C. corda'ta, (Benth.) Stem low, creeping, pubescent. Leaves 

 broad-cordate, petiolate, crenate. Whorls few flowered. Corolla 

 hairy within. — Pale purple, June. Shady places. 



IJracocephalum cordatum, Nutt. 



Genus XVIII. —PRUXEL'LA. L. 13—1. 



(From a German word, tbat means a disorder of the throat.) 



Cali/x with unequal lips, the upper one truncate, S-toothed. 

 Upper lip of the corolla dilated. Filament forked at the ex- 

 tremity, one point bearing an anther. Stigma bifid. Stajnens 4. 



1. P. vulga'ris, (L.) Stem square, pubescent along the angles, hairy 

 at the summit, branching at the base. Leaves oblong-ovate, denticulate 

 at the base, on long hairy petioles. Floicers in compact spikes, axillary 

 and terminal. Bracts cihate. Calyx somewhat hairy, upper one 3- 

 awned. Corolla with the upper lip emarginate. — Violet. 11. May 

 — July. Common. 6 — 8 inches. Self-heal or Heal-all. 



Genus XIX.— SCUTELLA'RIA, L. 13—1. 

 (From scutellum, a little shield; from the shape of the lid of the calyx.) 



Cali/x bilabiate; upper lip with a lid closing the calyx after 

 flowering. Corolla bilabiate, upper lip concave, lower 3-lobed, 

 tube long. Stamens 4. 



1. S. integkifo'lia, (L.) Stem 4-angled, usually branching, pubescent. 

 Lower leaves ovate, attenuate at the base, crenate, on short petioles ; 



