OhDEb 89,— labiate. 657 



Blender and smooth in aspect than the preceding, yet technicaMy scarcely different. 

 It is green rather than hoary, about 2f high, simple. Lvs. 2 to 3' by 6 to 9". 

 Cal. smoothish, the teeth usually pui-ple, equaling the tube of the purple spotted 

 coroUa. Jl., Aug. 



5 S. Nuttallidna Shuttlew. St. stout, erect, often branched, hispid with bristly, 

 spreading hairs; lvs. eUiptical-ovate, acuminate, crenate-serrate, sparsely hispid, 

 narrowed to a cordate base, petiolate ; cal pubescent, teeth triangular, very acute, 

 shorter than the tube of the coroUa or calyx. — % Ohio to Tonn., along shaded banks. 

 Plant light green, 3 to 5f high, with large leaves. St. with grooved sides and 

 hispid angles. lvs. 4 to 9' by 18" to 40". Verticils remote. Cor. light red, 

 with purple sti'ipes and dots, the tube much exserted. Jl., Aug. (S. sylvatica 

 Nutt.) 



6 S. arv^nsis L. Annual; si. decumbent, hairy; lvs. ovate, cordate, petiolate, 

 obtuse, crenate, the highest shorter than the lanceolate, acute teeth of the hispid 

 ■calyx ; cor. tube included, lips short.— In waste grounds near Boston, &c. Plant 

 slender, 3' to If long, with long, spreading hairs. Lvs. 1' or less. Cor. pubes- 

 cent. § Eur. 



39. LEONU^RUS, L. Mothek-wort. (Gr. /Lewv, a lion, ovpd, tail; 

 from the appearance of the spikes of flowers.) Calyx 5 to 10-striate, 5- 

 toothed, teeth, subspinescent ; upper lip of the corolla entire, hairy, con- 

 cave, erect, lower lip 3-lobed, the middle lobe obcordate ; stamens 4, 

 ascending beneath the upper lip. Mostly 1i . 



1 L. Cardiaoa L. Lvs. pahnate-lobed, uppermost lanceolate, often trifid, all of 

 them toothed, cuneiform at base ; cor. longer than the calyx, the tube with a 

 hairy ring within. — Tartary, whence it was first introduced into Europe and thenco 

 to America, over following the footsteps of civilized man. Common in waste 

 places. Stem 3 — 5f high, downy,' square, large, purplish, bearing its opposite, 

 stalked, rough leaves arranged in, 4 vertical rows. Els. in many whorls. Calyx 



' rigid and bristly. Cor. purphsh, hairy without, variegated within. July. — It has 

 reputation as an ingredient in herb drinks for colds, coughs, &c. § 



2 L. marnibidstrum L. Lvs. obbng-ovaie, incisely and coarsely serrate, the floral 

 lanceolate, tapering at each end, incisely dentate ; cor. shorter than the calyx 

 teeth, tube naked within, upper lip somewhat vaulted, pubescent. — Penn., Ind., 

 rare. A plant oC vigorous growth, 2 — if high, with opposite, ascending branches, 

 leaves 2 — 3' in length, the lowest on long petioles. Terticils many-flowered, 

 remote but numerous, forming an interrupted, leafy spike. Corolla reddish white. 

 July, Aug. § Eur. 



40. fflARRU'BIUM, L. Hoaehound. Calyx tubular, 5—10 striate, 

 with 6 or 10 subequal teeth; cor. bilabiate, upper lip erect, flattish or 

 concave, entire or bifid, lower lip spreading, 3-lobed, middle lobe broad- 

 est, emarginate, tube included; sta. included in the tube. — If. 



M. vulgdre L. St. ascending, hoary pubescent; lvs. roundish, ovate, crenate- 

 dentate, downy caneseent beneath ; cal. of 10 setaceous, uncinate teeth. — Fields 

 and roadsides. St. 1 to 2f high, branching at base, or several from the same root. 

 Lvs. petiolate, 1 to 2' diam., whitish and rough veined above, very woolly be- 

 neath, rounded- and toothsd. Els. white, in sessile, axillary, dense, hairy verticils. 

 Cal. woolly, the teeth spreading and alternately shorter. Jl., Aug. § Eur. Well 

 known as an ingredient in cough candy. 



41. LEU'CAS, L. (Gr. Xevnog, white; the usual color of the densely 

 woolly flowers.) Calyx tubular, 8 to 10-toothed, subequal; corolla 

 tube included, upper lip concave, ei-ect, entire, very hairy without, the 

 lower longer, spreading, trifid, middle lobe the largest ; stamens be- 

 neath the galea ; filaments not appendaged, achenia 3-angled. — FU. in 

 axillary verticils. 



