XCIII. LABIATE. 



11 



Flower of Galiopsis Tetrahit. 4.' One of its 



FIG. 51. 1. Monardadidyma. 2. An anther enlarged. 



stamens, much enlarged. 5. The calyx opened, showing the 4 achenia. 6. Flower of Salvia Sclarea. 

 8. Flower of Ocimum basilicum. 9. Flower of Nepeta Glechoma. 10. A pair of the anthers forming a 

 cross. 11. Flower of Physostegia Virginica seen from beneath. 12/ One of Us stamens. 13. The ovaries 

 with the rudimentary filament. 14. Flower of Teucrium Canadense. 15. Flower Nepeta Cataria. 

 16. One of its anthers. 17. Cunila Mariana. 18. A calyx and style. 



Conspectus of the Genera. * Flowers diandrous. 



( Bracts whitish. 

 $ Corolla not yellow. ( Bracts green. 



$ Connectile erect, short. < Corolla yellow 



f bilabiate. I Connectile transverse, long ; anthers dimidiate. . 



( Herbs. 

 < $ Upper lip emarginate. ( Shrubs. 



$ Corolla bilabiate. ( Upper lip linear, embracing the filament. 

 Calyx Uubequal. { Corolk subregular, 4-lobed 



* * Flowers didynamous. 



Blephilia. 



Hedeama. 



Collinsonia. 



Salvia. 



Cunila. 



Rosmarinus. 



Monarda. 



Lycopus. 



( Lips of calyx $ Filaments simple. Melissa. 



< toothed . . . f Filaments forked. Prune/la. 



("Tube of corolla $ Stamens ascending. ( Lips of the calyx entire. . . Scutellaria. 21 



! exserted. ... $ Stamens very long, arching the 5 cleft limb of corolla. Trichoste/nma. 35 



Calyx ] ( Stamens scarcely exsert. Thyinus. 13 



bilabiate. (.Tube of the corolla scarcely longer than calyx. (Stamens exserted. , Origanum.. 12 



( equal. Hyssopus. 15 



,5 ( Cal. 15-nerVed, \ oblique. Lojihanthus. 24 



rt ( Flowers < Dracocephalum. 25 



( Bracts < spicate. ( Calyx 10-nerved. . . Satureja. 14 



a % < green. (. Flowers capitate, involucrate. . Pycnanthejmim.il 



( Corolla bilabiate. ( Bracts colored 



f Stamens erect < Corolla limbof 4 subequal lobes, one of them emarginate. . 



o or divergent. ( Corolla limb of 5 equal lobes 



$ Calyx 5-ribbed. 



f Leaves crenate. Calyx 15-ribbed. 

 J J Plants glnbrous. 



( included beneath j Leaves sharply serrate. ( Plants hairy. 

 Stamens as-< the upper lip. . . (Leaves entire, lance-linear and elliptic. . 

 cending and ( exserted through the fissure of the upper lip of corolla. . 



$ Upper lip of the corolla 2-lobed. 

 $ Corolla not spurred. Upper lip of the corolla 4-cleft 



L Stamens declinate. < Corolla tube spurred 



( Leaves J Lower lip of the corolla with 2 lateral teth. 



< undivided, ( Lower lip of the cor. with lateral lobes rerlexed. Stachi/s. 



the teeth upinescent. ( Leaves mostly 3-lobed Levnurus. 



lyx 4-toothed. Upper pair of anthers cohering, half empty Synandra. 



yx subentire, very large, campanulate. . . . Molucella. 



lyx I0-toothd. th akernate teeth horter. . . Marrubium. 



Origanum. 



Mentha. 



Isanthus. 



Lamium. 



Neyeta. 



Phytostegia. 



Ballota. 



Micromeria. 



Teucrium. 



Lavandula. 



Ocimum. 



Plectranthus. 



Ga/evpsis. 



