706 LABIATAE (MINT FAMILY) 



* * Calyx cylindric or tubular, hairy in the throat. 



•*- Pubescent ; bracts minute. 



++ Common peduncle short but distinct. 



2. S. Nepeta (L.) Scheele. (Basil Thyme.) Soft-hairy; stem ascending, 

 1 m. or less high; leaves petioled, broadly ovate, obtuse, crenate ; corolla 7-8 

 mm. long, twice the length of the calyx. ( Calamintha Savi ; Clinopodium 

 Ktze.) — Dry waste grounds, Md. to Ind., Ark., and south w. (Nat. from Eu.) 



++ ++ Common peduncle none. 



3. S. AciNOS (L.) Scheele. Mostly branching and decumbent at base, 

 1.5-2.5 dm. high ; leaves elliptic-ovate to -oblong., acute, about 1 cm. long, 

 petioled; calyx constricted at the throat. {Clinopodium Ktze.) — Roadsides 

 and waste places, Mass. to Ont. and N. J. (Nat. from. Eu.) 



•I- •«- Glabrous or nearly so; common peduncles hardly any; pedicels 1-5, 

 slender, the conspicuous bracts subidate-acuminate. 



4. S. glabella (Michx.) Briquet. Smooth ; sterns diffuse or spreading, 2-5 

 dm. long ; leaves slightly petioled, oblong or oblong -linear, narrowed at base, 

 2-5 cm. long, sparingly toothed or nearly entire ; clusters 3-5-fiowered ; corolla 

 purplish, about 1 cm. long, fully twice the length of the calyx. {Calamintha 

 Benth. ; Clinopodium Ktze.) — Damp (generally calcareous) soil, s. Ind., Ky., 

 Tenn., and Ark. 



5. S. glabra (Nutt.) Fernald. Smaller; the flowering stems more upright, 

 1.5-4 dm. high, with narrower mostly entire leaves and fewer-flowered clusters, 

 while sterile runners from the base bear ovate thickish leaves 0.5-1 cm. long. 

 {Clinopodium Ktze.; Calamintha Nuttallii Benth.) — Rocky banks, N. Y. and 

 e. Ont. to Minn, and Tex. 



§ 2. Flowers in sessile dense many-flowered clusters, and involucrate with con- 

 spicuous setaceous-subulate bracts ; calyx nearly naked in the throat. 



6. S. vulgaris (L.) Fritsch. (Basil.) Hairy, erect, 2-6 dm. high; leaves 

 ovate, petioled, nearly entire ; flowers lavender to pink, in globular clusters ; 

 hairy bracts as long as the calyx. {Clinopodium 1j.; Calamintha Clinopodium 

 Benth.) — Woods, thickets, and alluvial banks, Nfd. to Va., O., Ind., and Man. 

 (Eurasia.) 



26. HYSS6pUS [Tourn.] L. Hyssop 



Calyx tubular, 15-nerved, equally 5-toothed, naked in the throat. Corolla 

 Bhort, 2-lipped ; upper lip erect, flat, obscurely notched, the lower 3-cleft, with 

 the middle lobe larger and 2-cleft. — Perennial herb, with wand-like simple 

 branches, lanceolate or linear entire leaves, and blue-purple flowers in small 

 clusters, crowded in a spike. (The ancient name.) 



1. H. officinXlis L. — Roadsides, etc., sparingly escaped from gardens. 

 (Introd. from Eu.) 



27. ORIGANUM [Tourn.] L. Wild Marjoram 



Calyx hairy in the throat, striate, 5-toothed. Tube of the corolla about the 

 length of the calyx ; the upper lip rather erect and slightly notched, the lower 

 longer, of 3 nearly equal spreading lobes. Stamens exserted, diverging. — 

 Perennials, with nearly entire leaves, and purplish flowers crowded in cylindrical 

 or ellipsoid spikes, imbricated with colored bracts. (An ancient Greek name, 

 composed of 6pos, a mountain, and '^dvos, ornament.) 



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

 oled, round-ovate ; bracts ovate, obtuse, purplish. — Roadsides and fields. Mass 

 to Ont. and Pa. June-Oct. (Nat. from Eu.) 



