Dracocephalum. XCIII. LABIATE. 425 



1, N. c^TARiA. Calnep. Catmint. (Fig. 51.) 



Erect, tall, hoary-tomcntosc ; Ivs. petiolatc, cordate, coarsely crenate-ser- 

 rate; p. spiked, the whorls slightly pedunculated.— '4 This coinrnon plant is 

 naturalized everywhere about old buildings and fences. Cats are very lond of 

 it and will olten devour it with the greatest avidity. Stem .square, pubescent, 

 branching, 2 — 3f high. Leaves very evenly bordered by tooth-like or crenate 

 serratures, and as well as the whole plant, covered with a soft, hoary down, 

 paler beneath, flowers many, white or puri)lis]i, the lower lip dotted with 

 crimson. July. 



2. N. Gleciioma. Benth. (Glechoma hederacea. Linn.) Glll-ovcr-thc- 

 ground. Gnmnd Ivy. {Fig. b\.)—Lv^. reniform, crenate; cor. about 3 



times as long as the caly.x'. — 7i A creeping plant, naturalized about hedges, 

 walls, &c. Stems prostrate, radicating at basv-, square, varying in length from 

 a few inches to 1 — 2i", Leaves petiolatc, opposite, roundish, cordate-reniform, 

 hairy and glaucous. Flowers axillary, about 3 together. Corolla blui.sh-pur- 

 ple, with a variegated throat. The 2 anthers of each pair of stamens meet 

 with their 2 divaricate cells, forming the appearance of a cross. The plant is 

 aromatic, and was lormerly used in ale, also in medicine. May. 



24. L0PHAJN:THUS. Benth. 

 Gr. \o<I>oi, a crest, av5os ; flowers in dense, terminal spikes. 



Calyx 15-ribbed, oblique, 5-cleft, upper segments longer ; corolla 

 bilabiate, upper lip bifidly emarginate, lower lip 3-lobed, the middle 

 lobe broader and crenate ; stamens diverging. 



1. L. NEPEToiDEs. Bcnth. (Hyssopus. Linn.) 



St. smooth, quadrangular, with the angles acute and slightly winged; Ivs. 

 ovate and ovate-lanceolate, acutely serrate ; petioles smoothish. — % Middle ! 

 and Western States ! A tall, branching, pale green herb, common about fences 

 and dry hedges. Stem 3 — 6f high, the sides somewhat concave, and the angles 

 prominent. Leaves acuminate, about 4' by 2'. Flowers in crowded, axillary 

 verticils, forming a terminal, green spike, which is nearly continuous above. 

 Corolla greenish-yellow. Stamens exserted. July, Aug. 



2. L. schrophularifolius. Benth. (Hyssopus. Linn.) 



St. pubescent, quadrangular, with the angles obtuse ; Ivs. cordate-ovate, 

 crenate-serrate ; petioles ciliate-pubescent. — % Tall, stout and branching, with 

 the general aspect of the former species, and found in similar situations. The 

 herbage is often changed to dark purple. Stem 2 — 4f high, purple. Leaves 

 about 5' by 3', coarsely serrate, acuminate. Flowers in crowded, axillary ver- 

 ticils, forming a long, dense, terminal spike. Corolla pale purple, more con- 

 spicuous than in the first. Stamens and style exserted. July, Aug. 



25. DRACOCEPHALUM. 



Gr. SpuKOi, drsigon, K£<pa\oi, head; from the resemblance of the floAvers. 



Calyx subequal, oblique, 5-cleft, upper segments larger ; cor. bila- 

 biate, upper lip vaulted, emarginate, throat inflated, lower lip spread- 

 ing, 3-cleft, middle lobe much larger, rounded or subdivided ; sta. 

 distinct, ascending, the upper pair longer than the lower. — Flowers 

 axillary aiid terminal., usually with large., conspicuous bracts. 



1. D. coRD.lTUM. Nutt. Cordate-leaved Dragonhead. 



Stoloniferous ; s/. and elongated petioles pubescent ; Us. cordate, obtusely 

 crenate, sparingly hirsute above ; $pikc unilateral ; bracts broad-ovate, entire, 

 nearly as long as the calyx; ped. bibracteolatc, mostly 1-flowered ; cat. segments 

 acute, almost pungent. — %. Islands of the Ohio, 40 miles below Pittsburg, N\dt- 

 all. Stem about If high, quadrangular. Leaves 3 or 4 pairs, obtusely cor- 

 date, almost as broad as long, petiole about as long as the lamina (!'), upper 

 pairs subsessile. Flowers secund. Corolla pale blue, about T long, orifice 

 much dilated. June. 



