326 LABIAT.E. (mint FAMILY.) 



1. M. vulgare, L. "Woolly; stems branching; at tlic base, ascending; 

 leaves jictiolcd, ovate or roundisli, crenate, the floral ones smaller, but longer 

 than the c'a])itato many-flowered whorls; calyx-teeth 10, re(uivcd-s])reading ; 

 corolla small, white. — Waste ground and road-sides. Introdueed. — Stems 

 \°-2° high. 



25. LEONOTIS, R. Brown. 



Calyx tubular, 10-nerved, incurved, unequally 8- 10-tootlicd ; the teeth 

 straight, spiny, the upper one largest. Corolla slender, 2-;ip])ed ; the upper 

 lip long, arching, entire, the lower very short, 3-ckft, sjjreading. Stamens 4, 

 ascending under the upi)cr lip : antiier-cells diverging. Nutlets 3-angled, trun- 

 cate. — Tall herbs, with very large globose whorls in the uxils of the upper 

 leaves. Flowers yellow or scarlet. 



1. L. nepetsefolia, K. Br, Annual ; stem fomcntosc, simple or branched ; 

 leaves remote, long-petiolcd, broadly ovate, crenate, the floial ones lanceolate; 

 whorls 1- several; calyx 8-toothed ; corolla villous, scarlet. — Waste grounds, 

 Georgia and Florida. June -Aug. Introduced. — Stem 1°-C° high. Whorls 

 I' -2' iu diameter. Corolla 1' long. 



26. LEONURUS, L. Motherwort. 



Calyx top-shaped, ."i-ncrvcd, 5-toothcd, the teeth spiny and at length spread- 

 ing. Coiolla 2-lippLd; the u]iper lip entire, the lower spreading, 3-lol)ed, with 

 the middle lobe obcordate. Stamens 4, ascending : antlier-cclls parallel, naked. 

 Nutlets 3-anglcd, truncate. — Herbs, with incisely lobed leaves; the floral ones 

 longer than the dense whorls. Bracts subulate. 



1. L. Cardiaca, L. Stem (2°-4° high) square, pubescent; leaves long- 

 petiolcd, the lower ones round-cordate, palmatcly lobed and toothed ; the floral 

 ones wedge-shaped, 3-cleft toward the apex; whorls distant, 6 - I5-flowercd ; 

 corolla villous, purplish, spotted with brown in the throat. — Waste places. 

 Introduced. June - July. 



27. STACHYS, L. Hkdge-Nettle. 



Calyx tubular-bell-shaped, 5- or 10-nerved, 5-tootlied ; the teeth equal, or the 

 upper one larger, more or less spiny (in our species), spreading in fruit. Co- 

 rolla hairy within, 2-lippcd ; the npper lip erect, the lower spreading, 3-lobcd, 

 with the middle lobe much larger. Stamens 4, ascending : anthers 2-celled. 

 Nutlets not truncate. — Chiefly hairy or hispid lierbs, with few-flowered whorls 

 iQ terminal racemes. 



* Perennial. 



1. S. aspera, Michx. Stem erect, with the angles rotigh with recurved 

 bristly hairs, rarely smoothish ; leaves short-petioled, ovate-oblong or ovate- 

 lanceolate, acute, serrate, rounded at the base, smooth, or s])riiiklc(i with Iniirs 

 above ; the floral ones longer than the calyx ; whorls 6 - 10 flowered, the lower 

 ones distant; calyx-teeth Kijine-pointed. (S. hispida, Pumh. S. tenuifolia, VVUld) 



