CL. XIV.] DIDYNAMIA GYMNOSPERMIA. 251 



gaping; tube cylindrical; throat elongated, tubular; upper lip 

 erect, linear, divided into two acute lobes; lower lip broader, re- 

 flected, divided into three deep lobes, the lateral ones acute, the 

 middle lobe larger and cleft. Filaments much shorter than the 

 corolla, covered by the upper lip; anthers small, oblong. Germen 

 rounded, four-lobed. Style thread-shaped, as long as the stamens; 

 stigma cleft, acute. Seeds four, oblong, in the bottom of the 

 hardened calyx, which is contracted at the neck. Name supposed 

 to be derived from Maria urbs, an ancient town of Italy. 292. 



1. AT vulgdre. Common White Horehound. Calyx-teeth ten, bristle- 

 shaped, hooked backwards; leaves broadly egg-shaped, unequally ser- 

 rate. Stem bluntly four-cornered, branched, woolly: lower leaves 



stalked, upper sessile, woolly : flowers white. Perennial : flowers in July : 

 grows in dry waste ground, and by road-sides : frequent. Eng. Bot. 

 vol. vi. pi. 410. Eng. Fl. vol. iii. p. 103. 882. 



14. LEONU'RUS. MOTHERWORT. 



Calyx of one leaf, funnel-shaped, with five prominent angles, 

 and five acute, spreading teeth. Corolla gaping; tube narrow, 

 short ; upper lip longest, concave, protuberant, rounded and un- 

 divided at the end, shaggy ; lower lip reflected, deeply divided 

 into three lance-shaped, nearly equal lobes. Filaments much 

 shorter than the corolla, covered by the upper lip ; anthers oblong, 

 compressed, cleft, covered with minute, globular, shining, hard 

 dots. Germen four-lobed, abrupt. Style thread-shaped, incurved ; 

 stigma cleft, acute. Seeds four, oblong, abrupt, hairy, in the tube 

 of the hardened calyx. Name, from Icon, a lion, and oura, tail. 



293. 



1. L. Cardiaca. Common Motherwort. Stem leaves lance-shaped, 



three-lobed. Stem two or three feet high, minutely downy, acutely 



four-cornered: calyx stiff and sharp-bristled : corolla purplish, the upper 

 lip white with erect hairs, the lower variegated. Perennial : flowers in 

 August : grows in hedges and waste places : not common. 883. 



15. CLINOPO'DIUM. WILD-BASIL. 



Involucre of numerous bristle-shaped leaves, under the flowers 

 nearly as long as the calyx. Calyx of one leaf, tubular, many- 

 ribbed, slightly curved, two-lipped ; upper lip broader, ascending, 

 divided into three acute segments; lower lip longer, incurved, 

 divided into two deep slender segments ; throat closed with hairs. 

 Corolla gaping ; tube cylindrical, rather short ; throat longer and 

 wider; upper lip erect, concave, obtuse, slightly cleft; lower lip 

 divided into three segments, the middle one very broad and 

 notched. Filaments cylindrical, directed towards the upper lip, 

 shorter than the corolla ; anthers two-lobed, meeting in pairs so 

 as to form a cross. Germen four-lobed. Style thread-shaped, as 

 long as the stamens; stigma two-cleft, pointed. Seeds four, egg- 

 shaped, in the bottom of the closed, tumid calyx. Named from 

 dine, a bed, and pous, a foot. 294. 



