352 LABIATE. Mentha. 



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

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



Var. ALorECURofoES, 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. ]\f. alopecuroidcs, Hull, ex 

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

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



M. KOTUNDiFOLiA, L. Tomentose-cauescent : stem strict: leaves from broadly elliptical to 

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

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

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



M. VIRIDIS, 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.) 



++ -w- Less capitate glomendes 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. citrutn, Ehrh. ; Engl. Bot. ed. Syme, t. 1029 (Bekgamot 

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

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



Var. crispa, Benth. A glabrous or glabrate form, with lacerate-dentatc and crisped 

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

 from Eu.) 



-I— -i— Inflorescence axillary, in dense verticillastrate glomerules, oi^ stems leafy to the top: leaves 

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



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

 third the length of the campanulate 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. SATfvA, L. Taller, generally more pubescent, the stem with reflexed soft hairs : leaves 

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

 tube, commonly hairy. — Engl. Bot. ed. Syme, t. 1031, 1032. Af. (jenliUs, Smith in Linn. 

 Trans, v. 208, & Engl. Bot. t. 2118, a gl.abrate variety with only calyx-teetli hairy, and 

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



* * Indigenous : inflorescence axillary, consisting of distant sessile verticillastrate glomerules 

 in the a.xils of leaves, as iu the precednig 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 ; tiie 

 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 sweeter scent, as of Hfonarda. — M. borealis, Michx. Fl. ii. 2. — 

 Similar range. 



10. L"^COPUS, Tourn. Wateu Horehouxd, Bugle-weed, Gipsy- 

 wort. (Jvxng, wolf, novi,', 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-vertieillastrate glomerules. the uppermost axils 

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



