352 LABIATE. Mentha. 



Syme, t. 1022. — Road-sides, &c., Pennsylvania, Porter. Also a seeming iiybrid between it 

 and M. viridis. (Nat. from Eu.) 



Var. ALOPECURofoES, Baker. Intermediate between the above and the next species : 

 leaves larger, more nearly sessile, broadly oval and obtuse, often subcordate, coarsely and 

 sharply serrate, more veiny, but not rugose : spikes usually thicker ; bracts broader. — 

 Baker in Seem. Jour. Bot. iii. 238 ; Hook. f. Fl. Brit. Isl. 279. M. alopecuroides, Hull, ex 

 Smith; Engl. Bot. ed. Syme, t. 1021. M. rolundifolia, Sole, Menth. Brit. t. 4, not L.— 

 Penn. and New Jersey, Porter, Parker, Lcggett. (Nat. from Eu.) 



M. KOTUNDij'OLiA, L. Tomentose-canesccnt : stem strict : leaves from broadly elliptical to 

 roundish-subcordate, sessile, rugose, rather finely serrate : spikes slender, not canescent. — 

 Reichenb. Ic. Germ. t. 1282 ; Engl. Bot. ed. Syme, t. 1020. M. syhestris, Sole, 1. c. t. 3, not 

 L. — Atlantic States, at a few stations, Maine to Texas : rare. (Nat. from Eu.) 



M. vfRiDis, L. (Spearmint.) Glabrous or nearly so: leaves oblong-lanceolate or oblong, 

 sparsely and sharply serrate : bracts linear-lanceolate and subulate, conspicuous. — Wet 

 ground, in cultivated districts. (Nat. from Eu.) 



++ +-h Less capitate glomerules in interrupted leafless spikes, or some in the axils of upper leaves : 

 flowers distinctly pedicellate: leaves distinctly petioled: stems less erect. 



M. PIPERITA, L. (Peppermint.) Glabrous, or in one variety somewhat hairy, very pun- 

 gent-tasted : leaves ovate-oblong to oblong-lanceolate, acute, sharply serrate : spikes nar- 

 row, of numerous glomerules. — Along brooks, escaped from cult. (Nat. from Eu.) 



M. aquAtica, L. Soft-pubescent or glabrate, the stem with reflexed hairs : leaves ovate, 

 roundish, or subcordate : spikes oblong and interrupted or capitate, thick : calyx and 

 usually the ^pedicels hairy. — M. citrata, Ehrh. ; Engl. Bot. ed. Syme, t. 1029 (Bergamot 

 Mint), a more glabrous and sweet-odorous variety. — Wet places, New England to Penn- 

 sylvania, &c. ; rare. (Nat. from Eu.) 



Var. CRisPA, Benth. A glabrous or glabrate form, with lacerate-dentate and crisped 

 leaves. — M. crispa, L. ; Engl. Bot. ed. Syme, t. 1028. — Wet ditches, New Jersey, &c. (Nat. 

 from Eu.) 



H— -1— Inflorescence axillarj', in dense verticillastrate glomerules, on stems leafy to the top: leaves 

 more or less petioled, ovate or oblong-ovate, pubescent or glabrate. 



M. ARA^ENSLS, L. Leaves obtusely serrate : calyx-teeth deltoid, acute or obtuse, about one- 

 third the length of the eampanul^te tube : otherwise same as forms of the next, which 

 passes into it. — Engl. Bot. ed. Syme, t. 1038. — New England, &c., at a few stations. (Nat. 

 from Eu.) 



M. sativa, L. Taller, generally more pubescent, the stem with reflexed soft hairs : leaves 

 sharply serrate: calyx-teeth triangular-subulate, lialf the length of the cylindraceous 

 tube, commonly hairy — Engl. Bot. ed. Syme, t. 1031, 1032. M. genlilis, Smith in Linn. 

 Trans, v. 208, & Engl. Bot. t. 2118, a glabrate variety with only calyx-teeth hairy, and 

 these longer. — Waste damp places, Mass. to Penn. ; uncommon. (Nat. from Eu.) 



» * Tnditfenous : inflorescence axillary, consisting of distant sessile verticillastrate glomerules 

 in the axils of leaves, as iii the preceding species, the uppermost axils flowerless. 

 M. Canadensis, L. Stem often simple : leaves varying from oblong-ovate to oblong- 

 lanceolate, sharply serrate, acute, generally tapering into the petiole : calyx hairy ; the 

 short teeth triangular-subulate. — Spec. ii. 577. — Wet places, through the Northern U. S. 

 from Atlantic to Pacific, and Canada and Saskatchewan to New Mexico and California. 

 Villous-hairy, with Pennyroyal odor : passes into 



Var. glabrata, Benth., with leaves and stem almost glabrous, the former sometimes 

 very short-petioled, and a sweater scent, as of Monarda. — M. boreuUs, Michx. Fl. ii. 2. — 

 Similar range. 



10. L'^COPUS, Tourn. Wateu Horehound, Bugle-weed, Gipsy- 

 wort. {Amog, wolf, Trout;, foot, wolf's-foot.) — Perennials, of wet or low ground 

 (northern temperate and Australian), Mint-like, but bitter and only slightly 

 aromatic ; with sharply toothed or lobed leaves, and small white or whitish flowers 

 in their axils, in sessile capitate-verticillastrate glomerules. the uppermost axils 

 flowerless. Fl. summer. — Gray, Proc. Am. Acad. viii. 285. 



