662 Okdeb 89.— labiate. 



coarsely orenate-aerrate ; fls. spiked, the whoiJa slightly pedunculated. — y About 

 old buildings and fences. St. •square, pubescent, branching 2 to 3f high. Lvs. 

 very evenly bordered by tooth-like or crenate serratures, and as well as the. whole 

 plant covered with a soft, hoary down, paler beneath. Fls. many, white or pur- 

 plish, the lower lip dotted with crimson. Jl. § S. B. Europe. — Eaten greedily 

 by cats. 

 2 N. G-leohdma Benth. Gill-ovbh-the-sbound. Lvs. reniform, crenate; cor. 

 , about 3 times as long as the calyx. — y A creeping plant, about walls, hedges, 

 etc. Sts. radicating at base, square, varying in length from a few inches to 1 to 

 2f. Lvs. petiolate, downy, glaucous, 1' or less broad. Fls. axillary, about 3 to- 

 gether. Cor. bluish purple, with a variegated throat. Usually the anthers are 

 so collated as to form 2 little crosses. May. § Bur. and Asia. 



26. DRACOCEPH'ALUM, L. Deagon-hbad. {Gr.^6pdKuv, dragon, 

 KE(l>aXri, head). Calyx subequal, oblique, 5-cleft, upper feegments larger ; 

 cor. bilabiate, upper lip vaulted, emarginate, tbroat inflated, lower lip 

 spreading, 3-clett, middle lobe much larger, rounded or subdivided; 

 sta. distinct, ascending, the upper pair longer than the lower. 



D. parwifldrum Nutt. Subpubeacent ; IvS. lanceolate, deeply serrate, petiolate; 

 bracts leafy, ovate, ciliate, mucronate-serrate ; cal. upper segment much tlie 

 largest ; fla. small, verticillate, subcapitate, cor. scarcely exceeding the calyx. — 

 @; Borders of the great lakes, Northern N. T. to L. of the 'Woods, very rare. Fls. 

 bluish, small, the verticils almost apicate. Cal. dry and membranous. Upper 

 lip of the coroUa arched, emarginate, central lobe of lower lip crenate. JL 



27. CEDRONEL'LA, Mcenoh. (Gr. icedpov, oil of cedar; from the 

 fragrance.) Calyx subcampanulate, 5-toothed; corolla tube exserted, 

 throat dilated, upper lip straight, flattish, emarginate or cleft, lower 3- 

 fid, middle lobe largest; stamens 4, ascending, the upper longer, anthcr- 

 cgjls parallel. — Fls. spicate, bracted. 



C. cordatum Nutt. Stoloniferous; st. and elongated petioles pubescent; lvs. 

 cordate, obtusely crenate, sparingly hirsute above ; spike unilateral ; bracta broad- 

 ovate, entire, nearly as long as the calyx; ped. bibracteolate, mostly 1 -flowered; 

 cal. segments acute, almost pungent. — 2f Eocky streams and Mts. Ohio and Tal 

 Stem about If high, quadrangular. Leaves 3 or 4 pairs, almost as broad as long, 

 petiole about as long as the lamina (1'), upper pairs subsessile. Cor. pale blue, 

 about 1' long, orifice much dilated. Jn. 



28. BRUNEL'LA, Toum. Self-heal. Blue-curls. . (German Brune, 

 a disease of the throat for which it was a reputed remedy.) Calyx 

 about 10-ribbed, upper lip dilated, truncate, with 3 short teeth, lower 

 lip with 2 lanceolate teeth ; filaments forked, one point of the fork bear- 

 ing the anther. — i( (Prunella, L.) 



B. vTilgMs L. St. ascending, simple ; lvs. oblong-ovate, toothed, petiolate ; ver- 

 ticils close, spicate ; upper lip of cor. truncate, with 3 awns. — A very common 

 plant, in meadows and low grounds. N. Am, lat. 33° to the Arc. Sea. St. vary- 

 ing from 8' to 2f high, obtusely 4-angled, hairy, simple or slightly branched. 

 Leaves few, opposite, slightly toothed, the stalks gradually becoming shorter from 

 the lower to the upper pair which are sessile. Flowers blue, in a large., oblong- 

 ovate spike of dense verticils. Bracts Imbricated, reniform, 2 beneath each ver- 

 ticil. Flowering all summer. 



29. SCUTELLA^RIA, L. Skull-cap. (Lat. scutella, a small vessel ; 

 from the resemblance of the calyx.) Calyx campanulate, bilabiate, lips 

 entire, upper one appendaged on the back and closed after flowering ; 

 cor. bilabiate, upper lip vaulted, lower dilated, convex, tube much ex- 

 serted, ascending, throat dilated; sta. ascending beneath the upper lip; 

 anth. appro.\;imate in pairs ; ach. tubercular. 



