ORDER 89. LABIATES. 541 



h Calyx lips entire, upper with an appendage on the back BCPTELLARIA. 29 



k Calyx 3-lobed. Anthers all distinct. Flowers purple streaked MACBBIDEA. 80 



k Calyx 4-lobed. Anthers, the highest pair connate SYNANDKA. 31 



m Corolla tube inflated in the midst, whitish. Lips small PIIYSOSTKGIA. 32 



m Corolla tube inflated at the throat, purple. Lower lip long LAMIUM. 33 



m Corolla inflated in the broad, concave upper lip, purple or yellow PIILOMIS. 34 



m Corolla not inflated, short. Calyx salver-form, 10-ribbed BALLOTA. 85 



Calyx broad-bell-form, netted MOLLUCELLA 36 



n Anthers opening transversely, ciliate fringed. Lvs. notched GALEOPSIS. 3T 



n Anthers opening lengthwise. Achenia rounded at the top STACHYS. 33 



Achenia truncate, 3-angled at top LEONURUS. 39 



O Corolla white, upper lip flattish. Style equally bifid ...MARRUBIUM. 40 



O Corolla white, upper lip concave. Style unequally bifld LEUCAS. 41 



O Corolla scarlet, exserted. Calyx upper tooth longest LEON OTIS. 42 



1. O'CIMUM, L. SWEET BASIL. (Gr. o^>, to smell ; the plants arc 

 strongly aromatic.) Upper lip of calyx orbicular, lower 4-fid ; corolla 

 resupinate, one lip 4-cleft, the other undivided ; stamens 4, declined, 

 the lower pair longer, the upper often with a process at their base. 

 Verticels 6-flpwered, in terminal, interrupted racemes. 



O. basilicum L. Lvs. smooth, ovate oblong, subdentate, petiolate ; cal. cili- 

 ate. (D Plant 6 to 12' high, with peculiarly smooth and soft leaves, variously 

 colored, exhaling a delightful odor. St. retrorsely pubescent above, branched. 

 Stam. exserted. Ms. white or bluish. Jl., Aug. \ E. India. Cultivated as a 

 culinary herb. 



2. HYP'TIS, L. (Gr. VTTTIOS, supine ; from the apparently resupin- 

 ate corolla.) Calyx 5-toothed, teeth acute or subulate ; corolla tube 

 cylindric, limb 5-lobed, the lower abruptly deflexed, contracted at its 

 base, the 4 others flat, erect or spreading ; stamens 4, declinate ; ach- 

 enia ovoid or oblong. In our species the flowers are capitate. 



1 H. radiata "Willd. Herbaceous ; Ivs. glabrous, lance-ovate, unequally crenate- 

 serrate, narrowed to a petiole; hds. globular, long-pedunculate; bracts lance- 

 oblong, obtuse, forming an involucre, longer than the calyx, as if radiate ; cal. teeth 

 acutely subulate, rigid. U In damp fields, Car. to Fla. and La., common. St. 

 18' to 3f high, square and hollow. Lvs. with their stalks 3 to 5' long. Hds. 

 hemispherical in flower, in fruit globular. Invol. about 12-leaved. Jl. Sept. 



2 H. spicata Poit. Branches aculeate-scabrous on the angles ; Ivs. ovate, un- 

 equally serrate, acute, petiolate, whitish puberulent beneath; hds. loosely racemed, 

 semi-oval, scarcely as long as their peduncles ; racemes panicled ; bracts ovate, 

 much shorter than the calyx. 1 In Fla. Plant 1 to 2f high. Hds. 4 to 7-flowercd. 

 Cal. inflated at base, truncate, with short, setaceous teeth. Cor. violet-blue. 



3. LAVAN'DULA, L. LAVENDER. (Lat. lavare, to wash. Used in 

 perfumery.) Calyx ovoid-cylindric, with 5 short teeth, the upper one 

 often largest ; corolla upper lip 2-lobed, lower 3-lobed, lobes all nearly 

 equal ; tube exserted ; stamens included. ^ . 



L. spica L. Lvs. linear-oblanceolate, tapering to the base, sessile, revoluto 

 at the edge, the upper ones linear-lanceolate, the highest shorter than the calyx ; 

 spike interrupted; bracts subulate. Plant 12 18' high, suffruticous, branching 

 from the base. Leaves crowded at the base of the branches, clothed with a whit- 

 ish down. Calyx villous. Cor. much exserted, lilac-colored. Jl. \ The plant 

 is delightfully fragrant, and by distillation yields the well known oil of lavender. 



4. TEITCRIUM, L. GERMANDER. (Teucer, the founder of Troy, is 

 said by Pliny to have first employed it medicinally.) Calyx subcam- 

 panulate and subregular, in 5 acute segments ; corolla with the 4 upper 

 lobes nearly equal, the lowest largest, roundish ; stamens 4 r exserted 

 from the deep cleft ia the upper side of the tube. 



