DIDYNAMIA— GYMNOSPERMIA. Leonurus. 103 



Herbaceous, branched ; downy, or somewhat woolly ; aro- 

 matic or bitter. Leaves stalked, veiny, bluntly serrated, 

 undivided. Fl. numerous, white or purplish, in dense 

 axillary whorls. 



1. M. vulgare. Common White Horehound. 



Calyx-teeth ten, bristle-shaped, hooked backwards. Leaves 



roundish-ovate, unequally serrated. 

 M. vulgare. Linn. Sp. PL 816. M^illd. w. 3. 1 1 I . Fl. Br. 636. 



Engl Bot.v. 6. t. 410. JVoodv.t.97. Hook. Scot. 184. Fl.Dan. 



f. 1036. Bull.Fr. t. 165. 

 M.n.258. Hall. Hist. v.\.\\3. 



M. album. Rail Syn. 239. Riv. Monop. Irr. t. 66. f. 1 . 

 Marrubium. Matth. Valgr. v. 2. 182. f. Corner. Epit. 573. f. Fuchs. 



Hist. 590./. Brunf. Herb. v. 1. 159./. 



In dry waste ground, by road sides, and on commons. 



Perennial. July. 



Stem bushy, branching from the bottom, bluntly quadrangular, 

 leafy, clothed with fine woolly pubescence. Leaves on longish 

 stalks, except the upper ones, which are nearly sessile ; their 

 shape and size, as well as the degree of their wooUiness, va- 

 rious '; their surfaces wrinkled and veiny. Fl. white, in dense 

 convex whorls. Calyx-teeth rigid, recurved at the point, all 

 spreading ; the 5 alternate ones smallest ; orifice of the tube 

 haiiy. 



The whole herb has a white or hoary aspect, and a very bitter, not 

 unpleasantly aromatic, flavour. Its extract is a popular remedy 

 for coughs and asthmatic complaints. 



Clusius, Gerarde and Lobel give, for this plant, a figure with a 

 vaulted corolla, which has been too incautiously copied and 

 quoted. 



296. LEONURUS. Motherwort. 



Linn. Gen. 295. Juss. 114. Fl. Br. 637. Lam. t. 509. Tourn. 

 t.87. 



Cardiaca. Tourn. t.87. 



Cat. funnel-shaped, with 5 prominent angles, and 5 sharp 

 spreading teeth, permanent. Cor. ringent; not above 

 twice the length of the calyx ; tube short, cylindrical, 

 narrow ; throat longish, but litde dilated ; limb spread- 

 ing; upper lip longest, concave, protuberant, rounded 

 and undivided at the summit, shaggy; lower reflexed, 

 in 3 deep, lanceolate, undivided, smooth, nearly equal 

 lobes. Filam. much shorter than the corolla, sheltered 

 under the upper lip. Anth. roundish-oblong, attached 

 by the back, incumbent, clothed in an early state with 



