LABIATZ£ 99 
3. ORIGANUM, Tourn. 
Flowers small, crowded, in corymbose cymes; calyx 
regular ; corolla obscurely 2-lipped; stamens 4, perfect ; 
plant very fragrant. Not alpine. 
O. vulgare, L., Marjoram; open hill-sides, especially 
calcareous. 
4. THYMUS, L. 
Flowers small, in few-flowered axillary cymes, often 
unisexual; calyx 2-lipped; corolla obscurely 2-lipped ; 
stamens 4, perfect, very unequal; leaves small, entire; 
stem procumbent ; plant very fragrant. 
T. Serpyllum, L. (including pannonicum, All.), Wild 
Thyme; frequent. 7. Chamedrys, Fr.; more czespitose, 
branches square, cymes forming a spike; the more 
common species in the Alps. TZ. vulgaris, L., Garden 
Thyme; flowers larger, stem more erect, edges of leaves 
revolute ; Pyrenees, doubtfully wild in Southern Switzer- 
land. 
5. CALAMINTHA, Meench. 
Axillary cymes usually few-flowered, generally stalked ; 
calyx tubular, 2-lipped ; corolla with a long straight tube, 
2-lipped, upper lip erect, lower lip spreading, 3-lobed; 
stamens 4. 
A. Flowers red-purple:—C. Cthnopodium, Benth. 
(Clinopodium vulgare, L.), Wild Basil; flowers numerous, 
in dense nearly sessile cymes, surrounded by numerous 
ciliate bracts, leaves pubescent; copses, common. C. 
officenalis, Mcench., Calamint; flowers 5-15 in stalked 
cymes, calyx-teeth very unequal; thickets. C. menthe- 
Jolta, Host. (ascendens, Jord.); very similar, but with 
