MINT FAMILY 211 
of flowers dense. Calyx teeth hooked at the tip. Corolla ! in. long, 
white. Cultivated from Europe as an herb (used in preparation of 
horehound candy) and somewhat naturalized. 
. OI. NEPETA L. 
Erect or prostrate herbs. Whorls of flowers axillary or ter- 
minal; flowers blue or white. Calyx tubular, 15-ribbed, 5- 
toothed. Corolla tube slender below, dilated at the throat, 
naked; upper lip notched or 2-cleft; lower lip 3-cleft. middle 
lobe large. Stamens 4, ascending under the upper lp, the 
upper pair longer. Lobes of the stigma awlshaped. 
B. Fl. species 2 (Glecomc). 
1. N. Cataria L. Caryrp. Stem grayish, downy. 2-5 ft. high, 
branched, very leafy. Leaves large, ovate-heart-shaped, deeply scal- 
loped, serrate, white and downy beneath. Corolla about } in. long, 
whitish with purple dots. Naturalized from Europe: a common weed 
about doorvards. 
2. N. hederacea Trevisan. Grotnp Ivy. GILL-OVER-THE-GROUND, 
CREEPING CHARLEY, Crow Victuars, Robin Runaway. Creep- 
ing. Leaves roundish, kidney-shaped. and crenate. Corolla bluish- 
purple, three times as long as the calyx. Common in damp places 
about houses and gardens. Naturalized from Europe. 
IV. PRUNELLA L. 
Perennials, with stems simple or nearly so, and sessile, 3- 
flowered flower clusters in the axils of kidney-shaped bracts, 
the whole forming a spike or head. Calyx tubular-bell-shaped, 
somewhat 10-ribbed; upper lip broad, 3-toothed. the teeth short: 
lower lip with 2 longer teeth. Upper hp of the corolla upright, 
arched, and entire: the lower spreading. reflexed. fringed, and 
3-cleft. Stamens +. reaching up under the upper lip, with the 
tips of the filaments 2-toothed; only one tooth anther-bearing. 
1. P. vulgaris L. Seir-Heat. Heararrt, Carpenter WEED. 
Leaves with petioles, ovate-oblong, either entire or toothed, often 
somewhat hairy. Corolla usually blue or bluish. somewhat longer 
than the brown-purple calyx. Open woods and fields everywhere. 
Vv. LAMIUM L. 
Annual or perennial hairy herbs. Calyx tubular-bell-shaped, 
5-veined, with 5 awl-pointed teeth of nearly equal length. 
