308 LABIATE. (MINT FAMILY.) 



tallii, Benth. Micromeria glabella, var. angustifolia, Torr.) Wet lirae*ton 

 rocks, Niagara Falls to Wisconsin, Central Ohio (Sn/licant), and southwestward. 

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



t 3. CLINOrODIUM, L. Calyx more or less gibbous below: clusters sessile and 



uianij-Jlowcrnl, <-r<uwll in'f/i awi-sftaped bracts. 



3. C. CLINOP6DIUM, 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. (CUnopodhttn vulgare, L.) Borders of thickets 

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



13. MELISSA, L. BALM. 



Calyx with the upper lip flattened and 3-too.thcd, 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 

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



1. M. OFFICINAHS, L. (COMMON BALM.) Upright, branching; leaves 

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

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



14. HEBE CM A, Pera. MOCK PENNYROYAL. 



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

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

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

 ing, 3-cleft. 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 'Hdvofrpov, 

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



1. H. pulegioides, Pers. (AMERICAN PENNYROYAL.) Erect, branch- 

 ing, hairy ; leaves petioled, oblong-ovate, 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. hispida, Pursh. Erect hairy (2' -5' high); leaves sessile, knear, 

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

 the ciliate hispid calyx. (5) Illinois, opposite St. Louis, and southwestward. 



15. COLLINSONIA, L. HORSE-BALM. 



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

 flattened, 3-toothed, the lower 2-cleft. 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 lacerate-fringed. Stamens 2 (sometimes 

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



