534 LABIATAE 
17. LEONURUS, L. 
Upright herbs, with deeply incised opposite leaves and whorls of small 
white or pink flowers in the leaf-axils. Calyx tube bell-shaped, 5-toothed, 
5-nerved, hairy, the teeth rigid. Corolla 2-lipped, the tube slightly ex- 
ceeding the calyx. Stamens 4, the anterior pair longer, ascending under 
the upper lip of the corolla. Nutlets 3-angled. 
1. L. cardiaca, L. (Fig. 3, pl. 134.) Moruerwort. Stem 2 to 5 ft. 
high, commonly branched; plant hairy, leaves on long leaf-stalks, spread- 
ing into 3 principal, more or less triangular lobes, these plane or toothed 
at the margins. Flowers in whorls at the axils. Corolla purple, bearded 
within. Roadsides and waste places. June-Sept. 
2. L. Marrubiastrum, L. (Fig. 4, pl. 134.) Hoarnounp MOoTHER- 
wort. Stem 2 to 5 ft. tall, branched; plant hairy; leaves on rather long 
leaf-stalks, egg-shaped, rounded or tapering at base, blunt at apex, the 
borders deeply divided by rounded teeth. Corolla shorter than the calyx, 
whitish, the tube not bearded within. Waste places. June-Sept. 
3. L. sibiricus, L. (Fig. 2, pl. 134.) Srper1AN MoTHERworT. Re- 
sembles No. 1, but leaves are more deeply 3-parted, the lobes, especially 
of lower leaves, incised. Waste grounds, Penna., and southward. May- 
Sept. 
18. LAMIUM, L. 
Upright herbs, with rounded cut-lobed leaves and whorls of small flowers 
in axillary whorls. Calyx tubular, bell-shaped, 5-nerved and with 5 nearly 
equal awl-pointed teeth. Corolla tube longer than the calyx, 2-lipped, 
the upper arched, the lateral lobes of the lower lip quite small, the middle 
lobe notched or divided. Stamens 4, under the upper lip of the corolla. 
1. L. amplexicaule, L. (Fig. 7, pl. 134.) Hensit. Plant 6 to 20 
in. high; stems weak, slender, partly decumbent or erect. Leaves rounded 
and deeply incised or toothed, the lower small, on very short leaf-stalks, 
the upper 4 to 1 in. broad, clasping or partly clasping the stem. Flowers 
few, in axillary clusters, purple or red, corolla about 3 in. long. Culti- 
vated grounds and waste places. April-Oct. 
2. L. maculatum, L. Sporrep DEAp Nettie. Stems weak, partly de- 
cumbent or erect, branching. Leaves rounded, somewhat pointed at apex, 
heart-shaped at base; on leaf-stalks, marked usually with a white spot on 
the upper face. Flowers few, in the axil, purple. Escaped from gardens. 
May-Oct. 
3. L. album, L. Wuire Deap Nerrie. Stem rather stout and more 
or less decumbent, branched, 1 to 14 ft. long. Leaves egg-shaped on short 
leaf-stalks, deeply cut into large teeth at the margins. Flowers few, 
axillary, white. Waste places. Naturalized. April-Oct. 
4. L. purpureum, L. (Fig. 8, pl. 134.) Rep Deap Nettie. Similar 
to No. 1, but all the leaves have leaf-stalks and the plant is more or less 
downy. “Waste grounds and cultivated soil, From Europe. April-May. 
19. GALEOPSIS, L. 
Herbs, with opposite leaves and small flowers in the upper axils or 
forming dense terminal heads or spikes. Calyx bell-shaped, 5-toothed, 
