Ol'd. l.~] DIDYNAMIA GYMNOSPERMIA. 125 



oblong-lanceolate, rather acute, crenate-serrate, 3-nerved ; the 

 lower ones stalked. Whorls of about G flowers, spiked. Calyx 

 hairy, its segments subulate. Seeds roundish, glossy. 

 Fields, betw. Gad's hill and Rochester, Kent. 0.8. Fl. yellow. 



294. BALL6TA. Black Horehound. 



1. B. nigra, 1. 46. (Stinking Black H.) Leaves ovate, undivided, ser- 

 rated. Calyx funnel-shaped, abrupt, with short spreading teeth. 

 Waste gr. If. 7, 8. Fetid. Cor. dull purple ; hairs converging. 



295. MARRuBIUM. White Horehound. 



1. M. vulgdre, 6.410. (Common White H.) Calyx-teeth ten, bristle- 

 shaped, hooked backward. Leaves roundish-ovate, unequally 

 serrated. 

 Waste gr. If.. 7. Aromatic, bitter, hoary. Fl. small, white. 



296. LEONuRUS. Mother-wort. 



1. L. Cardiaca, 4. 286. (Common M.) Upper leaves lanceolate, 

 either three-lobed or undivided. 

 Hedges ; rare. If . 7, 8. Bitter, fetid. Fl. purp. ; white and 

 woolly outside. 



297. CLINOPoDIUM. Wild Basil. 



1. C. vulgdre, 20. 1401. (Common Wild B.) Whorls bristly. Brac- 

 teas awl-shaped. Flower-stalks branched. Leaves obscurely ser- 

 rated. 

 Chalky, or gravelly soil. If. 8. Aromatic. Fl. light purple. 



298. ORIGANUM. Marjoram. 



1. O. vulgdre, 16. 1143. (Common M.) Heads of flowers roundish, 

 panicled, crowded, erect. Involucral leaves ovate, smooth. 

 Throat of the calyx hairy. 

 Bushy, chalky pi. If . 7, 8. Hot, fragrant. Fl. purplish- 



299. THYMUS. Thyme. 



1. T. Serpyllum, 22. 1514. (Wild T.) Flowers in small heads. 



Stems recumbent. Leaves flat, ovate, obtuse, entire, fringed at 

 their base. 

 Heaths. If. 7, 8. Stems a little shrubby and downy. Fl. purple. 



2. T. Acinos, 6. 411, Acinos vulgaris, Br. Fl. (Basil T.) Flowers 



about six in a whorl, on simple stalks. Stem branched, ascend- 

 ing. Leaves acute, serrated. Calyx protuberant at the base. 

 Sandy fields. 0.7, 8. Lessfragr. Fl. bluish pur. varieg. with white. 



3. T. Calamhitha, 24. 1676, Calamintha officinalis, Br. Fl. (Cala- 



mint.) Whorls on forked, many-flowered stalks. Leaves with 

 shallow serratures. Hairs within the calyx. 

 Gravelly soil. V-. 7, 8. Of a sweet aromatic flavour. Cor. light 

 purple, dotted, downy. 



