Mentha. | LABIATH (Cooke). 305 
Souta AFrica : without locality, Drége ! 
Var. 5, doratophylla (Brig. Fragm. Monog. Lab. in Bull. Herb. Boiss. ii, 695) ; 
leaves sessile, heteromorphous, the upper and middle narrowly long-lanceolate, 
more or less sword-shaped, with marginal teeth } lin. long, the lower leaves sub- 
triangular, broad at the base, with subentire margins; nervation somewhat 
obscure ; verticils congested ; calyx-teeth 4 lin. long. 
Sours Arrica: without locality, Mund & Maire in Berlin Herb. ex Briquet. 
2. M. viridis (Linn. Sp. Pl. ed. ii. 804) ; stems erect, quadrangular, 
glabrous or nearly so ; leaves 1-2? in. long, 3-} in. broad, lanceolate 
or ovate-lanceolate, sessile or subsessile, with serrate margins, 
glabrous on both sides, strongly nerved beneath, green on both 
surfaces ; floral leaves bract-like ; inflorescence in spike-like panicu- 
lately arranged racemes 2-3 in. long; verticils many-flowered, 
scarcely pedunculate, usually closely packed upwards, more or less 
distant towards the base of the racemes; pedicels 4 lin. long, 
glabrous ; bracts reaching 14-14 lin. long, linear-lanceolate, acute, 
glabrous or nearly so; calyx 1-1} lin. long, tubular, glabrous ; 
teeth nearly 4 lin. long, subulate from a triangular base; corolla 
nearly 2 lin. long; tube cylindric, about 1 lin. long; upper lobe 
suborbicular, scarcely broader than the lower; other 3 lobes 
broadly ovate-oblong, obtuse; stamens much exserted; nutlets 
rather more than } lin. long, oblong, rounded at the apex, smooth, 
dark brown. JM. spicata, var. viridis, Linn. Sp. Pl. ed. i. 576. 
M. spicata, Huds. Fl. Angl. ed, i, 221. 
Coast Recton; Mossel Bay Div. ; dry channel of an arm of the Gauritz River, 
Burchell, 6457! Humansdorp Div. ; between Melk River and Gamtvoos River, 
Burchell, 4798 ! 
Differs from M. longifolia, Huds., by its glabrous calyx and pedicels. 
Widely distributed through cultivation. 
3. M. aquatica (Linn. Sp. Pl. ed. ii. 805); stems usually erect, 
branched, more or less villous or hairy, at least on the angles ; 
leaves very variable in shape, }-14 in. long, broadly ovate or more 
rarely ovate-lanceolate, sometimes almost orbicular, always petiolate, 
serrate, hairy on both sides (rarely subglabrous), with rounded or 
subcordate base; petioles variable in length, hairy ; inflorescence 
capitate, subglobose or oblong ; verticils crowded ; pedicels reaching 
1} lin. long, pubescent or hairy ; bracts up to 1? lin. long, linear- 
lanceolate, acute; calyx about 2 lin. long, tubular, 13-nerved, 
hairy ; tube about 1} lin. long; teeth subulate from a deltoid base ; 
corolla 24 lin. long, pink or purple ; lobes about as long as the tube, 
upper lobe oblong, emarginate, other lobes narrower, oblong, obtuse ; 
stamens much exserted. Benth. Lab. 176. 
Coast Reaton : Cape Diy. ; Muizenberg Vley, Wolley Dod, 999! Paarl Div. ; 
near the Berg River, Drege! Knysna Div. ; hills near Knysna, Burchell, 5450! 
Port Elizabeth Div. ; around Krakakamma, Burchell, 4545! Queenstown Div. ; 
upper Zwartkei River, Galpin, 2680 ! 
VOL. V.—SECT. I. a 
