XCIII. LABIATE. 



FIG. 51.— 1. Monardadidyma. 2. An anther enlarged. 3. Flower of Galiopsis Tetrahit. 4. One of lU 

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

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

 cross. U. Flower of Physostegia Virginica seen from beneath. 12 One of its 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. 13. A caly.x and style. 



" Flowers diandrous. 



Coiispectus of the Genera. 



Bracts whitish. 

 Bracts green. . 



Blephilia. 



Hedeoma. 



CoUinsonia. 



Salvia. 



Cunila. 



Rosmarinus. 



-t- -r . = Monarda. 



Calyx (.subequal. (Corolla subregular,4-lobed Lycopua. 



* * 



\ Corolla not yellow. 



< Connectile erect, short. ( Corolla yellow. . 

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

 I >; Herbs. 



i _ <l Upper lip emarginate. I Shrubs 



^ Corolla bilabiate. \ Upper lip linear, embracing the filament. 



Flowers didynamous. 



Melissa. 

 Prunella. 

 Scutellaria. 

 Trichostemma. 



(I Lips of calyx ^ Filaments simple 

 < toothed . . . ( Filaments forked. 

 Tube of corolla < Stamens ascending, r Lips of the calyx entire, 

 exserted. . . . (Stamens very long, arching the 5 cleft limb of corolla. 

 k Stamens scarcely exsert. Thymus. 

 Tube of the corolla scarcely longer than calyx. I Stamens exserted. , Oris'anum. 12 



t equal. Hyssopus. 15 



( Cal. 15-nerVed, I oblique. Lophanthvs. 24 



( Flowers I D^acocephalum. 25 



Bracts < spicate. ' Calyx lO-nerved. . . Saturejn. 14 



green. ( Flowers capitate, involucrate. . Pycnanthetnum.Xl 



^ 



3 f Corolla bilabiate. ( Bracts colored Oris 



S rstaniens erect < Corolla limb of 4 subequal lobes, one of them emarginate. . Mentha. 

 "- or divergent. ( Corolla limb of 5 equal lobes Isanthus. 



J— - \ Calyx 5-ribbed. . . Lamiitm. 



fS f Leaves crenate. (Calyx 15-ribbed. . . 'Sepeta. 



lo 5 J . . , J \ Plants glabrous. Phy^ostegta. 



t^ § 1 ( mcluded beneath 1 Leaves sharply serrate. ( Plants hairy. . Ballota. 



"3 La Stamens a3-< the upper lip. . . L Leaves entire, lance-linear and elliptic. . Micromeria. 



g. ! S cending and ( e.\serted through the fissure of the upper lip of corolla. . . Teucrium. 



« •] S \ Upper lip of the corolla 2-Iobed. Lavandula. 



s aj' , ,. ^ Corolla not spurred. (Upper lip of the corolla 4-cleft. Ocimum. 



o> 5 L Stamens decimate. (Corolla tube spurred Plectranthus. 



>. ( Leaves ^ Lower lip of the corolla with 2 lateral teeth. Galeopsis. 



"3 , , . 'i undivided. (Lower lip of the cor. with lateral lobes reflexed.S^oc/iys. 



O vthe teeth spinescent. r Leaves mostly 3-lobed Leonurtus. 



Ca yx 4-tpothed. Upper pair of anthera cohering, half empty Synandra. 



Calyx subentire, very large, campanulate Molucella. 



Calyx lotoothed, the alternate teeth shorter . . Marrubium. 



