OiiDER 89.— LABIATE PLANTS. 255 



Analysis of the Genera. 



% Flowers -with only 2 perfect stamens 7 



§ Flowers with the 4 perfect stamens all declining to tlie lower lip a 



§ Flowers with the 4 perfect stamens erect or ascending to tlie upper lip. . . .2 



2 Stamens of equal length. Corolla almost regular, 4 or 5-Iubed c 



2 Sta., the upper pair longer than the lower (outer). Calyx 13-L)-veined k 



2 Stamens, the lower pair longer than the upper (interior) pair 3 



3 Stamens diverging apart, mostly straiglit and exscrted 6 



3 Stamens parallel, ascending and long-exserted from the upper side b 



8 Stamens parallel, ascending in pairs beneath the upper lip 4 



4 Calyx 13-veined, 5-toothed, and somewhat 2-lipped g 



4 Calyx 5-10-veined or irregularly netted 5 



5 Calyx strongly 2-Iipped, upper lip truncate, closed in fruit. . . .m 



5 Calyx not labiate, 3 or 4-lobed, open in fruit n 



5 Calyx subeqmilly o-toothcd, teeth not spinesccnt o 



5 Calyx subequally 5-toothed, teeth ending in sharp spines q 



5 Calyx unequally 8-10-toothed s 



6 Calyx hairy in the throat, mostly labiate f 



6 Calyx naked in the throat, mostly equal, 5-toothed e 



7 Stamens ascending beneath the galea (upper lip). Anthers 1-celled b 



7 Stamens exserted, distant. Anthers 2-celled. ,.d 

 a Corolla upper lip 4-lobed, lower entire, flattish. t Siveet Basil. O'cymum. 



a Corolla upper lip 4-lobed, lower saccate, deflexed. S. Hyptis. Hvptis. 



a Corolla upper lip 2-lobed, lower 3-lobed, long, lilac, f La->'ender. Lavan'dula. 

 b Stamens exserted through a fissure in the tube. Blue Curls. Tkicmos'tj;ma. 

 b Stamens very long, involute, arching the corolla. Germander. Tku'ckicm. 

 c Corolla limb equally 5-lobed. Stamens short. Blue-falsf-Gentian. Isan'thus. 

 c Corolla limb 4-lobed, the broadest lobe notched. Peppermint, &c. Mentha. 1 



d Cor. nearly reg., 4-cleft. Calyx naked in throat. Water J/oarhound. Lxc'opvs. 2 

 d Corolla labiate, cyanic, throat naked. Stain, straight. Dittany. Cuni'la. S 

 d Cor. labiate, cyanic, throat naked. Stam. ascend. PennijroijaL IlEuja'oiiA. 

 d Corolla labiate, yellow, throat hairy. Stamens V 



long-exserted. ' v ITorse-halm. Collixso^via. 



e Fls. yel. Coarse herbs not fragrant, with large Ivs. ) 



e Fls. bright blue. Handsome herbs. Calyx 15-veincd. + ITijssop. llxs'sovva. 



e Fls. pale blue, in dense hds. Calyx 10 or 13-striate. Wild Basil. Pvcnan'theml-m. 



e Fls. pink-colored, axillary. Lvs. linear, small, t Summer Savor?/. Satuke'ja. 



f Corolla exserted, pink-color, racemed. Leaves linear, smooth. Stem If. S. 



Diceuax'dka. 

 f Corolla short as calyx, pale-purple. Bracts roundish, colored. 



Mm-joram, Okig'amm. 

 i Corolla short as calyx, blue-purp. Bracts minuto, grcon. Thyme. TnxuvA. 



