LABIATE. (MINT FAMILY.) 411 



12. ORIGANUM, Tourn. WILD MARJORAM. 



Calyx ovate-bell-shaped, hairy in the throat, striate, 5-toothed. Tuhe of the 

 corolla about the length of the calyx, 2-lipped ; the upper lip rather erect and 

 slightlv notched, the lower longer, of 3 nearly equal spreading lobes. Stamens 

 4, exserted, diverging. Perennials, with nearly entire leaves, and purplish 

 flowers crowded in cylindrical or oblong spikes, imbricated with colored bracts. 

 (An ancient Greek name, composed of opos, a mountain, and ydvos, delight.) 



0. VULGARE, L. Upright, hairy, corymbose at the summit ; leaves peti- 

 oled, round-ovate ; bracts ovate, obtuse, purplish. Roadsides, Atlantic States. 

 June -Oct. (Nat. from Eu.) 



13. THYMUS, Tourn. THYME. 



Calyx ovate, 2-lipped, 13-nerved, hairy in the throat ; the upper lip 3-toothed, 

 spreading; the lower 2-cleft, with the awl-shaped divisions ciliate. Corolla 

 short, slightly 2-lipped ; the upper lip straight and nattish, notched at the apex, 

 the lower 3-cleft. Stamens 4, straight and distant, usually exserted. Low per- 

 ennials, with small and entire strongly-veined leaves, and purplish or whitish 

 flowers. (The ancient Greek name of the Thyme, probably from Qvw, to burn 

 perfume, because it was used for incense.) 



T. SERPVLLUM, L. (CREEPING THYME.) Prostrate; leaves green, flat, 

 ovate, entire, short-petioled ; flowers crowded at the ends of the branches. 

 Old fields, E. Mass, to Penn. (Adv. from Eu.) 



14. SATUREIA, Tourn. SAVORY. 



Calyx bell-shaped, 10-nerved, equally 5-toothed, naked in the throat. Corolla 

 2-lipped ; the upper lip erect, flat, nearly entire, the lower 3-cleft. Stamens 4, 

 somewhat ascending. Aromatic plants, with narrow entire leaves, often clus- 

 tered, and somewhat spiked purplish flowers. (The ancient Latin name.) 



S. HORTENSIS, L. (SUMMER SAVORY.) Pubescent annual ; clusters few- 

 flowered ; bracts small or none. Escaping from gardens and sparingly wild 

 in Ohio to 111., etc. (Adv. from Eu.) 



15. C A I. A MI NT HA, Tourn. CALAMINT. 



Calyx tubular, 13-nerved, mostly hairy in the throat, 2-lipped ; the upper lip 

 3-cleft, the lower 2-cleft. Corolla with a straight tube and an inflated throat, 

 distinctly 2-lipped ; the upper lip erect, flattish, entire or notched ; the lower 

 spreading, 3-parted, the middle lobe usually largest. Stamens 4, mostly as- 

 cending; the anthers usually approximate in pairs. Perennials, with mostly 

 purplish or whitish flowers, produced all summer; inflorescence various. 

 (Name composed of na\ds, beautiful, and pivda, Mint.) 



1. Flowers loose, without long-subulate bracts ; calyx villous in the throat. 

 * Pubescent; peduncles short but mostly distinct ; bracts minute. 



C. NEPETA, Link. (BASIL-THYME.) Soft-hairy; stem ascending (1-3 

 high) ; leaves petioled, broadly ovate, obtuse, crenate ; corolla (3" long) twice 

 the length of the calyx. Dry waste grounds, Md. to Ark. (Nat. from Eu.) 



* * Glabrous or nearly so; common peduncles hardly any ; pedicels 1-5, slen- 

 der, the conspicuous bracts subulate-acuminate ; on wet limestone river-banks^ 



1. C. glabella, Benth. Smooth; stems diffuse or spreading (1 -2 long) ; 

 leaves slightly petioled, oblong or oblong-linear, narrowed at base (8" -2' long), 

 sparingly toothed or nearly entire; clusters 3-5-flowered; corolla (purplish, 

 5-6" long) fully twice the length of the calyx. S. Ind., Ky., and Tenn. 



