- 
: ae ae 
[Ballota. — 
the south of Scotland, but usually as an escape from cultivation. Fl. 
summer and autumn. It varies considerably in the precise form of the 
teeth of the calyx, and in the length of their point. [B. alba, Linn., 
is a stout form, with spinous spreading or reflexed tips of the calyx- 
teeth. | 
358 THE LABIATE FAMILY. 
XV. LEONURUS. LEONURUS. 
Erect herbs, with leaves more or less lobed, and rather small flowers 
in close axillary whorls, forming long, terminal, leafy spikes. Calyx 
with 5 prominent ribs, and 5 equal, spreading, almost prickly teeth. 
Corolla with a rather short tube; the upper lip erect, concave, and 
entire ; the lower spreading, and 8-lobed. Stamens 4, in pairs. Nuts 
flat, angular at the top. 
A small genus, containing a few European and Asiatic species, dif- 
fering from Stachys chiefly in the shape of the nuts, which is the same 
as in Lamiwin. 
1. L. Cardiaca, Linn. (fig. 809). Motherwort.—A tall, coarse, stiff, 
slightly hairy or downy perennial, 2 to 4 feet high. Leaves stalked, 
the lower ones broad, deeply and irregularly cut into 5 or 7 coarsely 
toothed lobes; the floral leaves narrow, 5-lobed, or nearly entire, 
their stalks as long as the flowers. Flowers 6 to 15 together, in 
close axillary whorls, forming a long interrupted terminal, leafy 
spike. Calyx-teeth almost prickly. Corolla pink or nearly white, 
~ like that of a Stachys, with a rather short tube, and very hairy 
upper lip. : 
In waste places, hedges, on roadsides, &c., in Europe and central 
and Russian Asia; not extending, however, far to the northward. 
Indicated in several parts of Engiand, Scotland, and Ireland, but 
with considerable doubts as to its being indigenous. J. end of 
summer. 
XVI. LAMIUM. DEAD-NETTLE. 
Hairy herbs, either annual or perennial, decumbent at the base; the 
lower leaves always stalked, ovate or orbicular, and toothed ; the flowers 
in close axillary whorls, or the upper ones in a leafy head. Calyx as 
in Stachys. Corolla tube slender at the base, much enlarged at the 
throat ; the upper lip erect or arched, slightly concave, entire or slightly 
notched ; the lower spreading, with a broad middle lobe; the two 
lateral ones either smaller and pointed, or more often reduced to 
a small tooth. Anthers hairy in all the British species except JL. 
Galeobdolon. 
A genus of several species, chiefly south European or central Asiatic, 
generally distinguished either by the long, arched upper lip, or by the ~ 
smallness of the lateral lobes of the lower lip of the corolla, 
Annuals, with small flowers, in few, nearly terminal, leafy 
whorls. Ss . 
Floral leaves sessile, orbicular, obtusely crenate . : . 1. L. wmplexicaule. 
Floral leaves shortly stalked, ovate, often pointed . ! . 2. L. purpureum, 
Perennials, with rather large flowers in axillary whorls. 
