LABIATE. 425 



■with 10 prominent ribs, and 5 broadly ovate teeth, each terminating in a 

 fine, stiff point. Corolla purplish, with an oblong or oval, concave and 

 somevrhat arched upper hp, scarcely shorter than the 3-lobed, spreading 

 lower hp. 



On roadsides, under hedge.i, and in waste places, throughout Europe and 

 Russian Asia. In Britain it extends over England, Ireland, and the south 

 of Scotland. Fl. summer and autumn. It varies considerably in the precise 

 form of the teeth of the calyx, and in the length of their point. 



XV. IiEONURUS. LEONURFS. 



Erect herbs, with leaves more or less lobed, and rather small flowers in 

 close axillary whorls, forming long, termmal, leafy spikes. Calyx with 5 

 prominent ribs, and 5 equal, spreading, ahnost prickly teeth. Corolla with 

 a rather short tube ; the upper lip erect, concave, and entire ; the lower 

 spreading, and 3-lobed. Stamens 4, in pairs. Nuts flat, and angular at 

 the top. 



A small genus, containing a few European and Asiatic species, differing 

 from Stachys chiefly in the shape of the nuts, which is the same as in 

 Lamium. 



1. Mother^vort Lieonurus. Iieonurus Cardiaca, Linn. 

 (Eng. Bot. t. 286. Moilierwort.) 



A tall, coarse, stiff, sliglitly hairy or downy perennial, 2 to 4 feet high. 

 Leaves stalked, the lower ones broad, deeply and irregularly cut into 5 or 

 7 coarselv 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 axil- 

 lary whorls, forming a long, interrupted, terminal, leafy spike. Calj^x-teeth 

 almost prickly. Corolla pink or nearly white, hke that of a Stacliys, 

 with a rather short tube, and very hairy upper lip. 



In waste places, hedges, on roadsides, etc., in Europe and central and 

 Russian Asia ; not extending, however, far to the northward. Indicated in 

 several parts of England and southern Scotland, but with considerable 

 doubts as to its being really indigenous. Fl. end of summer. 



XYI. IiAMIUM. LAMIUM. 



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 

 Stachi/s. Corolla-tube slender at the base, much enlarged at the throat ; the 

 upper lip erect or arched, shghtly concave, entire or shghtly notched ; the 

 lower spreachng, 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 the yellow L. 



A genus of several species, chiefly south European or central Asiatic, 

 generally distinguished either by the long, arched upper lip, or by the 

 smaUness of the lateral lobes of the lower hp of the corolla. 



Annuals, with small flowers, in few, nearly terminal, leafy whorls. 



Floral leaves sessile, orbicular, obtusely crenate 1. Senhii L, 



Floral leaves Bbortly stalked, ovate, often pointed 3. Red L, 



2 02 



