MENTHA. ^LYCOPUS. 269 



iS^. E. B. 1026, 1027.— St. 12—18 in. high. I know Httle of 

 this. Is it distinct from M. aquatica ? E. 



** Throat of eal. naked. General inflorescence indeterminate. 

 Fl. in axillary distant whorls ; none amongst the uppermost 

 I., or shorter than them. 



8. M. sativa (L.) ; 1. nearly sessile ovate or ovate-lanceolate 

 sharply serrate, uppei- 1, smaller but similar and exceeding thefi., 

 whorls distant dense, cal. tubular or beUshaped, cal. -teeth 

 triangular-lanceolate.^-St. 1 — 2 feet high. Uppermost leaves 

 often above the flowers. — a. M. sativa (L.) ; 1. hairy on both 

 sides, ped. cal. and cor. hairy. M £. 448. — ;3. M. rubra 

 (Huds.) ; 1. stalked nearly glabrous, ped. lower part of cal. and 

 cor. glabrous, cal. -teeth hairy, veins of 1. purple. M. gracilis 

 (Sm.) is a slender green form with subsessile leaves. M. 

 cardiaca (Baker) differs by having the upper 1. sessile and st.-l. 

 nearly glabrous. — y. M. pratensis (Sole) ; 1. rather blunt much 

 veined hairy above, glabrous (except on the veins) beneath, ped. 

 and cal. glabrous, cal. -teeth ciliate. — 8. M. gentiUs (L.) ; 1. 

 acute with few veins slightly hairy on both sides, upper 1. 

 similar, ped. lower part of cal. and cor. glabrous. U. B, 2118. 

 — These forms seem to vary into each other. — Wet places. P. 



VII. vni. E. s. I. 



9. M. arven'sis (L.); I. stalked ovate blimtly serrate, tapper 

 I. similar and equally large, whorls distant, cal. beUshaped, teeth 

 triangular as hroad as long. — a. vulgat'is; 1. narrowed below. 

 M. arvensis Sm. E. B. 2119. — (i. M. agrestis (Sm.) ; 1. roimdish 

 subcordate below, upper ones nearly sessile. S. B. 2120. — L. 

 very variable in form, from nearly round and blunt to ovate- 

 acute.— Oom-flelds. P. VII.— IX. Corn Mint. E. S. I. 



*** Throat of the calyx closed with hairs. PxTLBGruM Opitz." 



10. M. Pulegium (L.) ; 1. stalked ovate slightly crenate all 

 similar, whorls all distant globose many-flowered, cal. tubular 

 hispid closed with hairs in the throat. — E. B. 1026. Sole 23. 

 — St. prostrate. L. often recurved, uppermost axUs without 

 flowers. The smallest of our species and remarkably different 

 in habit.— Wet places. P. VTII. IX. Penny-royal. E. S. I. 



2. Ltc'optis Linn. Gipsywort. 



1. L. europee'iis (L.) ; 1. stalked ovate-oblong sinuate-dentate 

 or pinnatiiid, sterile stam. wanting, nuts about equaUing the 

 tube of the ealyx.— -E., B. 1105. — Subglabrous or pubescent. 

 L opposite. Fl. small, in dense whorls. — Banks of streams 

 and ditches. P. VII. VIII. E.S.I. 



