MINT FAMILY. 847 



C. Verschaffeltii, Lera. Leaves ovate and scarcely narrowed below, 

 acute but not acuminate, the teeth large and rounded and obtuse. 



6. HYPTIS. (Greek: reversed, from the lower lobe of the corolla.) 

 Flowers late summer. 



H. radiata, Willd. Stems 2°-4° high ; leaves lance-ovate, toothed ; 

 flowers white or purple-dotted, small, crowded in peduncled whitish-in- 

 volucrate heads. H Low ground, N. Car., S. 



7. LAVANDULA, LAVENDER. (Latin lavo, lave, for which Lav- 

 ender-water is used.) 



L. vera, DC. Cult, from S. Eu. ; a low undershrub, barely hardy N., 

 hoary, with lance-linear leaves, and slender spikes of bluish small flowers 

 on long terminal peduncles, in summer. 



8. COLLINSONIA, HORSE BALM. {Peter Collinson of London, 

 who corresponded with Bartram and Linnaeus.) Rather tall and large- 

 leaved, strong-scented plants ; flowers summer. 2L 



C. Canadensis, Linn. Rich Weed, Stone Root. Smooth, 2°-3° 

 high, with ovate serrate leaves S'-O' long and on long petioles, and pale 

 yellow, lemon-scented flowers on slender pedicels in panicled racemes. 

 Rich woods, N. and S. 



9. PERILLA. (Aboriginal name.) Native of China and Japan. (J) 



P. Nankinensis, Decne. (P. ocymoides, var. CRfsPA.) Balsamic- 

 scented, much- branched herb, cult, for its foliage, the ovate-petioled 

 leaves generally dark purple or violet-tinged beneath, bronze-purple 

 above, the margins wavy and deeply cut-toothed, the insignificant rose- 

 colored or whitish flowers in panicled spike-like racemes, in late summer, 



10. MENTHA, MINT. (Ancient Greek and Latin name.) Mostly 

 spreading rapidly by running rootstocks ; leaves toothed ; the small 

 flowers purplish-bluish, or almost white, in summer. Beside the fol- 

 lowing, other introduced species are occasionally found. 11 



* Flowers in terminal spikes. 



M. vlridis, Linn. Spearmint. Green, nearly smooth, with oblong or 

 Zance-ovate, wrinkled-veiny, sessile Leaves, and spikes narrow, dense, and 

 leafless. Roadsides. Eu. 



M. piperita, Linn. Peppermint. Purplish, smooth, with ovate acute 

 petioled leaves, and whorled clusters of flowers forming loose interrupted 

 spikes. Wet places, and cult, for the oil. Eu. (Lessons, Figs. 97, 98.) 



* * Floioers in distinct axillary globular clusters. 



M. Canadensis, Linn. Wild Mint. Pleasant-scented, hairy or a 

 smooth variety, with ovate or lance-oblong, acute or pointed leaves on 

 short petioles, and the whorls in the axils of some of the middle pairs. 

 Low grounds. 



11. LYCOPUS, WATER HOREHOUND. (Greek: wolf s foot, of 

 no application.) Resembling the Wild Mint, but bitter, and not aro- 

 matic, often producing slender, sometimes tuber-bearing runners from 

 the base, smooth, the very small white flowers close-clustered in the 

 axils of the leaves, in summer. Wild in shadj,^ moist soil. 2i 



