LABIATE. 
229 
5. M. piperita (L.) ; I. stalked ovate- lanceolate or oblong ser- 
rated, upper 1. smaller, bracts lanceolate, spikes lax short obtuse 
interrupted below, cal. tubular glabrous below with lanceolate 
subulate teeth. — E. B. 687. — St. and 1. nearly glabrous or hairy 
on the nerves beneath. Cal. glandular. — /3. sylvestris (Sole) ; 
1. ovate rounded and almost heartshaped below, spikes elongated. 
Sole 24. — Wet places, rare. P. VII. VIII. Pepper Mint. 
6. M. aquatica (L.) ; 1. stalked ovate serrate rounded or 
slightly cordate below, uppermost I. like bracts and shorter than 
the whorls, whorls few subglobose capitate the uppermost terminal, 
cal. tubular with triangular subulate teeth hairy as well as the 
pedicel. — E. B. 447. — Cal. glandular. Inflorescence capitate, de- 
terminate. Occasionally the whorls are more numerous, but the 
uppermost is always terminal. — M. citrita Ehrh. M. odorata 
Sole 9- E. B. 1025. appears to me to be a glabrous variety of 
this species. — In wet places. P. VII. VIII. Capitate Mint. 
7. M. sativa (L.) ; 1. stalked ovate or elliptical serrate, upper 
ones similar but smaller all longer than the whorls, whorls all 
distant dense, cal. tubular or bellshaped : teeth triangular-lan- 
ceolate acuminate. — Inflorescence whorled indeterminate. Upper- 
most leaves often barren. — a., vulgaris ; cal. and pedicels hairy. 
M. sativa Sm. E. B. 448. — /3. rubra ; pedicels and lower part of 
the calyx glabrous, st. slightly branched reddish, whole plant 
nearly glabrous. M. rubra Sm. E. 2}.'-1413. — y. gentilis; pedi- 
cels and lower part of the cal. glabrous : teeth shorter triangular, 
whole plant nearly glabrous, st. much branched green, 1. all of 
nearly the same size. M. gentilis Sm. E. B. 2118. The charac- 
ters of this variety closely approach M. arvensis. — S. ? acutifolia ; 
pedicels and cal. hairy all over, 1. ovate-lanceolate tapering at 
each end. M. acutifolia Sm. E.B. 2415. It is probable that 
this plant is correctly referred here. A specimen from near Set- 
tle, Yorkshire, given to me by my friend Mr. S. H. Haslam, only 
differs from Smith's plant by having glabrous pedicels. — Var, 
«, /3, and y are closely connected by intermediate forms. — In wet 
places, o. Banks of the Medway, but not found for many years. 
P. VII. VIII. Whorled hairy Mint. 
8. M. arvensis (L.) ; 1. stalked ovate or elliptical serrate, 
upper I. similar and equally large, whorls distant, cal. bellshaped : 
teeth triangidar as broad as long. — Inflorescence indeterminate. 
— at. vulgaris; 1. narrowed below. M. arvensis Sm. E. B. 2119. 
- — /}. agrestis ; 1. somewhat cordate below, upper ones nearly 
sessile. M. agrestis Sm. E. B. 2120. — In corn-fields. P. VII. 
— IX. Corn Mint. 
** Throat of the calyx closed with hairs. 
9. M. Pulegium (L.) ; 1. stalked elliptical obtuse slightly cre- 
nate all similar, whorls all distant globose many-flowered, cal. 
