308 LABIATE. (MINT FAMILY.) 



tallii, Benth. Micromeria glabella, var. angustifolia, Torr.) — Wet limestone 

 rocks, Niagara Falls to Wisconsin, Central Ohio (Sullivant), and southwestward. 

 July- Sept. — Appearing very distinct, but united by Southwestern forms, &c. 



4 3. CLINOPODIUM, L. — Calyx more or less gibbous below : clusteis sessile ana 

 many-flowered, crowded with awl-shaped bracts. 



3. C. Clinopodium, Benth. (Basil.) Hairy, erect (1°- 2° high) ; leaves 

 ovate, petioled, nearly entire; flowers (pale purple) in globular clusters; hairy 

 bracts as long as the calyx. (Clinopodium vulgare, L.) — Borders ef thickets 

 and fields. July. (Nat. from En.) 



13. MELISSA, L. Balm. 



Calyx with the upper lip flattened and 3-toothed, the lower 2-cleft. Corolla 

 with a recurved-ascending tube. Stamens 4, curved and conniving under the 

 upper lip. Otherwise nearly as Calamintha. — Clusters few-flowered, loose, 

 one-sided, with few and mostly ovate bracts resembling the leaves. (Name from 

 fieXicraa, a bee; the flowers yielding abundance of honey.) 



1. M. officinalis, L. (Common Balm.) Upright, branching; leaves 

 broadly ovate, crenatc-toothed, exhaling the odor of lemons ; the corolla white 

 or cream-color. — Sparingly escaped from gardens. (Adv. from Eu.) 



14. HEDEOIIIA, Pers. Mock Pennyroyal. 



Calyx ovoid or tubular, gibbous on the lower side near the base, 13-nerved, 

 bearded in the throat, 2-lippcd ; the upper lip 3-toothed, the lower 2-cleft. Co- 

 rolla 2-lippcd ; the upper lip erect, flat, notched at the apex; the lower spread- 

 ing, 3-clcft. Fertile stamens 2 ; the upper pair reduced to sterile filaments or 

 wanting. — Low, odorous plants, with small leaves, and loose axillary clusters 

 of flowers, often forming terminal leafy racemes. (Altered from 'H8v6ap.ov, 

 an ancient name of Mint, from its sweet scent.) 



1. II. i>«logiol«les, Pers. (American Pennyroyal.) Erect, branch- 

 ing, hairy ; leaves petioled, oblong-orate, obscurely serrate, the floral similar; whorls 

 few-flowered ; corolla (bluish, pubescent) scarcely exceeding the calyx ; sterile 

 filaments tipped with a little head. ® — Open barren woods and fields ; com- 

 mon. July - Sept. — Plant 6'- 10' high, with nearly the taste and odor of the 

 true Pennyroyal (Mentha Pulcgium) of Europe. 



2. H. Ilispida, Pursh. Erect hairy (2' -5' high); leaves sessile, lerear, 

 entire, the floral similar and exceeding the flowers ; corolla scarcely longer than 

 the dilate hispid calyx. (J — Illinois, opposite St. Louis, and southwestward. 



15. COLLINSONIA, L. Horse-Balm. 



Calyx ovate, enlarged and declined in fruit, 2-lippcd ; upper lip truncate and 

 flattened, 3-toothcd, the lower 2-clcft. Corolla elongated, expanded at the 

 throat, somewhat 2-lipped ; the 4 upper lobes nearly equal, but the lower much 

 larger and longer, pendent, toothed or laceratc-fringed. Stamens 2 (sometimes 

 4, the upper pair shorter), much exserted , diverging : anther-cells divergent.— 



