ORDER 91.-LABIAT.E. '243 



hairy in throat. Corolla tube scarcely exsertecT, upper lip erect, flat, emar 

 ginate, lower with 3 nearly equal segments. Stamens 4, ascending, distant. 

 11 Leaves subentire. Fls. in dense oblong spikes, with imbricated bracts. 



1 O. vulgare L. mid M. Leaves ovate, petiolate, hairy ; spikes corymbed ; bis^ts 



ovate, purplish ; calyx teeth equal. Fields* : rare. If. June, July. 



2 O. MAKJORANA. Sweet M. Leaves oval or obovate, obtuse, petiolate, hoary-pubes- 



cent ; bracts roundish ; calyx tube split below. If. A kitchen vegetable. 



20. THYMUS, L. THYME. Cal. 2-lipped, ovoid, 13- veined, upper lip 

 of 3, the lower of 2 subulate teeth, throat hairy. Cor. moderately 2-lipped. 

 Sta. straight, exserted, distant. > Leaves small, entire, strongly veined. 

 Bracts minute. Flowers purple. European culinary herbs. 



1 T. Serpyllum L. Wild T. Stems creeping and ascending, leafy, each terminated 



with a small, dense, oblong head of flowers grateful to bees, t . June. 



2 T VULGARIS. Stems erect from the decumbent base ; Ivs. oblong-ovate to lanceolate, 



the sides revolute; fls. in term., leafy spikes. Much branched. 6 1(X high. Jn.,Jl. 



21. CALAMINTHA, Moench. -CALAMINTH. Cal. tubular, 13-nerved, 

 throat mostly hairy, upper lip 3-cleft, lower 2-cleft. Corolla tube straight, 

 exserted, throat inflated, limb bilabiate, upper lip erect, entire or ernargi- 

 nate, lower spreading, its middle lobe largest. Stamens 4, the lower pair 

 longer, usually ascending, it 



Herbs hairy. Cymes dense, capitate, bracted. Calyx tube curved, 2-lipped.. No. 1 



Herbs hairy. Cymes loose, pedunculate. Calyx tube straight, 2-lipped No. 2 



Herbs smooth. Cy. loose, sessile, bracted. Cal. straight, teeth subregular. . . No. 3 

 $ Shrubs low, slender, nearly smooth. Cymes few-flowered. Fls. large Nos. 47 



1 C. Clinopodium Benth. Wild Basil. Plant clothed with whitish hairs ; leaves 



ovate, subserrate ; fls. purplish, in dense verticils or heads, with many subulate 

 bracts. Low woods, N. and W. 1 2f. Heads near 1' wide. June August. 



2 C. Nepeta Link. Branched below, soft-villous ; leaves small, broad-ovate, obtuse ; 



cymes few-flowered, becoming some raccmcd ; corolla white, 34" ; calyx 1". Va., 

 Tenn., to Ga. Roadsides, &c. 2f. Strongly aromatic. July, August. Europe. 



3 C. glabella B. Smooth, decumbent at base, diffusely branched ; leaves narrowly 



oblong, tapering to base; verticils 6-10-flowered. Rocks, O. to Ark. IS'. Cor. 4 5", 

 pale violet. Fragrant like Pennyroyal. Often produces runners, and runs into 

 p. tHvet'slfblia, Flowering stems nearly erect, the barren prostrate like runners, 



bearing small ovate leaves (34"). Rocks, Niagara, and N-W. 10'. 

 <1 f . Carolinian* Sw. Smooth, simple ; Ivs. ovate, obtuse, crenate-serrate ; bracts 

 similar ; cy. few-flwd., on short stalks ; cor. rose-purp., 7 9". Dry woods, S. 15'. Jl. 

 o C. cocci nea B. Shrub with virgate branches ; Ivs. narrowly ovate-oblong ; verti- 

 cils of -2 (5 ample scar. fls. ; cor. 15 18", gland. -pubescent. Sandy shores, Fla. 2f. 



6 C. canescens T. & G. Low shrub, minutely canescent-downy ; leaves linear, with 



rolled edges, obtuse, crowded ; fls. sol., opp., 8", rose-red. Sandy shores, Fla. 812'. 



7 . den tat a Chapm. Tomentous ; Ivs. wedge-obovate, 2-1-toothed at apex. Fla. 2f. 



22. MELISSA, Touru. BALM. Calyx 13-ribbed, the upper lip 3- 

 toothed, flattened and dilated, lower bifid. Cor. tube recurved-ascending, 

 upper lip erect, flattish, lower spreading, 3-lobed, the middle lobe mostly 

 broadest. Stamens ascending. 



WI. officinal i* L. Pubescent ; St. erect, branching; fls. in loose, axillary cymea; 



