348 LABlATiE. (mint FAMILY.) 



fine closfi down. (Brachystemum vcrticillatnm, Michx.) — Dry liills, Maine to 



Ohio, Kentucky, and southward. — Flowers in very dense clusters; the outer 



bracts ovate-lanceolate and pointed, the others pointless. 



« * « * Caljix eqmdly b-toothed : flowers collected in dense and rjlobidar, oflevflis- 



cichd, small and nnnierons heads, which are crowded in terminal corymbs: bracts 



rigid, closely apprtssed, shorter than the flowers: lips of the corolla very short: 



leaves narrow, sessile, entire, r'tgid, crowded and clustered in the axils. 



B. P, lanceol^tum, Pursh. Smoothish or minutely pubescent (2° high); 



(eaves lanceolate or lance-linear, obtuse at the base ; /wads downy ; calyx-teeth short 



and triangular. — Dry thickets ; not rare. 



9. P. linifblium, Pursh. Smoother and leaves narrower and heads less 

 downy than in the last ; the narrower bracts and lanre-awl-shaped calyx-teeth pun- 

 gently pointed. — S. New England to Illinois, and southward. 



***** Calyx equally 5-tonthed : flowers collected in few and solitary large and 

 glohular heads (terminal, and in the up/ier axils of the membranaceous petioled 

 learrs) ; the brads loose, ciliate-bcurded. 



10. P. mont^num, Michx. Stem (l°-30 liigli) and ovate- or oblong- 

 lanceolatc serrate leaves glabrous; bracts very acute or awl-pointed, tlie oiitcr- 

 nio.^t ovate and Iwif-Iikc, the inner linear; teeth of the tubular calyx shoit and 

 acute. — Alleghanies, from S. Virginia southward. — Flavor warm and pleas- 

 ant. Foliage and heads resembling Monarda. 



9. ORIGANUM, L. Wild Mar.joram. 



Calyx ovatc-bell-shapcd, hairy in the throat, striate, 5-toothed. Tube of the 

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

 slightly notched ; the lower longer, of 3 nearly etpial spreading lobes. Stamens 

 4, exscrtcd, diverging. — Perennials, with nearly entire leaves, and purplish 

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

 (An ancient Greek name, said to be composed of o/joy, a mountain, and ydvos, 

 delight. ) 



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

 oled, round-ovate ; bracts ovate, obtuse, purplish. — Dry banks : scarce. June - 

 Oct. (Nat. from Eu.) 



10. THYMUS, L. TuvME. 



Calyx ovate, 2-lipped, I3-nerved, hairy in the throat; the npper lip 3-toothed, 

 spreading; the lower 2-clcft, with the awl-shnped divisions ciliate. Corolla 

 short, slightly 2-lippcd ; the upper lip straight and flatti>h, notched at the apex ; 

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

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

 flowers. (The ancient Greek mime of the Thyme, probably from 6vo, to burn 

 perfume, because it was used for incense.) 



1. T. Serpylldm, L. (Creeping Thyme.) Prostrate; leaves green, flat, 

 ovate, entire, short-petioled, flowers crowded at the end of the branches. — Old 

 fields. Eastern New England to Pennsylvania: rare. (Adv. fromEu. ) The 

 Garden Thyme is T. vulgaris, L. 



