244 58. LABIATA. 
lower 3-lobed, middle lobe cordate. Cal. funnel-shaped with 
5 equal teeth. Nuts convex and rounded at the end. 
** Stamens included in the tube of the corolla. 
17. Marrusium. Anther-cells diverging, bursting longitu- 
dinally. Upper lip of cor. straight, erect, flattish, cloven ; 
lower 3-lobed, middle lobe the largest. Cal. tubular; 
teeth nearly equal or 2 longer. Nuts flatly truncate. 
Tr. VIII. AJUGOIDEZ. Cor. with the upper lip very short 
or split deeply bifid and appearing as if wanting. 
18. TEvcRIUM. Stam. parallel, protruding between the deeply 
divided lobes of the upper lip of the cor., inferior longest ; 
cells bursting longitudinally. Cor. with the upper lip deeply 
bifid, lobes elongate; lower lip 3-lobed. Cal. tubular, 5- 
toothed, teeth equal or the upper one larger. 
19. Asuca. Stam. parallel, protruding far beyond the upper 
lip of the cor., inferior longest ; cells bursting longitudinally. 
Cor. with the upper lip very short, 2-lobed; lower 3-lobed, 
much longer than the upper. Cal. ovate-bellshaped, nearly 
equally 5-cleft. 
Tribe I. Menthoidee. 
1. Menrua Linn. Mint. 
* Throat of the calyx naked. Inflorescence determinate. Fl. in 
spiked whorls or terminal heads. 
1. M. rotundifolia (L.) ; 1. sessile elliptic-obtuse crenate-serrate 
wrinkled shaggy beneath, spikes linear-cylindrical dense, bracts 
lanceolate, “ fr.-cal. not contracted at the mouth.”—LH. B. 446. 
Sole Menth. 3.—Viscid. Whorls of spike nearly all close together. 
Scent acrid Waste places, rare. P. VIII. 1X. Round-leaved 
Mint. E. I. 
2. M. sylvestris (L.): 1. subsessile ovate or lanceolate serrate 
hoary beneath, spikes linear-cylindrical dense, bracts subulate, 
“ fr.-cal. contracted at the mouth.”— FE. B. 686. Sole 1. and 2.— 
Whorls of spike nearly all close together. Scent sweet.—a. L. 
lanceolate, acute, rather narrowed below.—6. M. velutina (Lej.) ; 
1, elliptical-cordate. 3. rotundifolia Sole 4.—y.? crispa; 1. deeply 
cut and crisped. FE. B..S,2785. This may belong to M. aqua- 
fica but is scarcely determinable.—Waste ground in damp places. 
P. VIII. IX. Horse Mint. E. 
3. M. viridis (L.); 7. glabrous sessile lanceolate acute serrate, 
spikes lax cylindrical, bracts subulate.—£. B. 2424. Sole 5.— 
Cor. glabrous. Whorls of the spike rather distant. L. glandu- 
