454 CI, LABIATA (BAKER), [ Thymus. 
25, THYMUS, Linn.; Benth. et Hook. f. Gen. Plant. ii. 1186. 
Calyx-tube 10-13-nerved ; limb bilabiate. Corolla-tube included or 
exserted ; limb short, obscurely bilabiate; upper lip nearly flat; lower 
patent, 3-lobed. Stamens 4, equal or obscurely didynamous ; filaments 
filiform; anthers 2-celled. Disk equal. Style shortly bifid. Nucules 
ovoid or oblong, smooth.—Perennial herbs or undershrubs. Leaves 
small, usually entire. Whorls in the axils of the leaves or crowded into 
terminal spicate panicles. Flowers small. 
Species 40, concentrated in the Mediterranean region. 
Leaves serrate . . . . . . . . 1, %. serrulatus. 
Leaves entire . . . . . . . . 2, T. Serpyllum. 
1. T. serrulatus, Hochst.; Benth. in DC. Prod. xii. 203. A 
much-branched perennial, shrubby at the base, with short decumbent 
pubescent stems. Leaves lanceolate, sessile, firm, acutely serrate, 
4_3 in. long, cuneate at the base, ciliate, dotted with conspicuous black 
glands. Whorls aggregated into dense globose terminal heads with 
leaves crowded at the base. Calyx fin. long; tube oblong ; teeth acute, 
longer than the tube. Corolla twice as long as the calyx. Stamens 
exserted.—A. Rich. Tent. Fl. Abyss. ii. 188; Engl. Hochgebirgstl. 
Trop. Afr. 364. 
Nile Land, Abyssinia, at 10,000-11,700 ft.: Aber Mountain, near Adesela, 
Schimper, 868! Debra Eski, Schimper, 153 ; Urahut district, on Erareta Mountain, 
Schimper, 713; Lotho, Schimper, 463. 
2. T. Serpyllum, Linn.; Benth. in DC. Prod. xii. 200. A 
perennial, much-branched at the crown of the root, with slender trailing 
more or less pubescent stems. Leaves sessile, oblong or lanceolate, 
cuneate at the base, entire, conspicuously dotted with black glands. 
Whorls crowded into globose terminal heads. Calyx ;}; in. long ; tube 
campanulate ; teeth of the upper lip short, of the lower long and narrow. 
Corolla-tube as long as the calyx.—A. Rich. Tent. Fl. Abyss. i. 188 ; 
Hook. f. Fl. Brit. Ind. iv. 649; Engl. Hochgebirgsfl. Trop. Afr. 364. 
Wile Land. Eritrea: Mount Bizen, 6500 ft., Schweinfurth 4 Riva, 1854! 
Abyssinia: Samen; Ataba, Steudner, 1406! near Enjedcap, Schimper, 1178! and 
without precise locality, Schimper, 712! 
Also in Europe, Western Asia, Himalayas, and Greenland. 
26. CALAMINTHA, Moench ; Benth. et Hook. f. Gen. 
Plant. ui, 1190. 
Calyx tube cylindric, 13-nerved ; limb bilabiate ; upper lip trifid, 
lower bifid. Corolla-tube straight ; limb bilabiate ; upper lip flat or 
slightly concave ; lower patent, bifid. Stamens 4, ascending; upper 
sometimes imperfect ; anther-cells parallel or divergent. Disk equal. 
Style bitid. Nucules ovoid, smooth.—Herbs or undershrubs. Leaves 
entire or dentate. Whorls usually axillary, many-flowered. Flowers 
small or medium-sized. 
