700 



Flora of the Malayan Peninsula. 



Anthers 1 -celled ; filaments bearded : — 



Whorls glomerulate in stout, lax, usually interrupted 



spikes . . . . . . . . . . 6. Pogostemon. 



Whorls aggregated in slender, dense, continuous spikes 7. Dtsophylla. 

 Anthers 2 -celled, cells parallel ; filaments not bearded ; 

 whorls sometimes terminal, usually axillary . . . . 8. Mentha. 



Stamens ascending under upper lip of corolla ; usually 4 didy- 

 namous, the anterior pair the longer ; sometimes 2, one pair 

 being imperfect ; corolla 2-lipped : — 

 Calyx-limb distinctly 2-lipped : — 



Calyx-throat remaining open after flowering ; tube without 

 dorsal appendage, undivided in fruit and persistent : — 



Stamens two pairs ; upper calyx-lip 3-toothed . . 9. Calamintha. 



Stamens one pair, with remote anther-cells ; upper calyx- 

 lip 3-toothed or entire . . . . . . 10. Salvia, 



Calyx-throat occluded after flowering ; tube with a dorsal 

 plate or pouch, 2-partite ; the upper segment deciduous in 



fruit . . . . . . . . . . 11. SCUTELLAKIA. 



Calyx-limb uniform, or, if oblique, not 2-lipped ; the teeth 

 subequal : — 

 Anthers dimorphic ; cells of anterior longer pair dimidiate, 

 1-locular, of posterior shorter pair 2-locular ; upper corolla- 

 lip short, flattish, pubescent externally but not woolly ; 

 flowers medium, purplish ; calyx-teeth 5, subequal . . 12. Anisomeles. 



Anthers uniform ; upper corolla-lip arched or hooded over 

 stamens : — 

 Calyx-teeth 6 to 10 ; limb often oblique ; upper corolla- 

 lip densely woolly externally : — 



Lower corolla-lip shorter than upper ; flowers large, 



yellow . . . . . . . . . . 13. Leonotis. 



Lower corolla-lip longer than upper ; flowers medium 



or small, white . . . . . . . . 14. Leucas. 



Calyx-teeth 5, subequal; limb uniform ; upper corolla-lip 

 pubescent externally but not woolly : — 



Nutlets with a small basal or subbasal scar : — 

 Nutlets dry ; flowers medium: — 



Calyx-teeth spinescent ; flowers purplish ; leaves 



deeply incised . . . . . . . . 15. Leonurus. 



Calyx-teeth herbaceous ; flowers white or yellow ; 



leaves not incised . . . . . . 16. Paraphlomis. 



Nutlets fleshy ; flowers large, yellow or white . . 17. Gomphostemma. 



Nutlets with a large lateral scar ; flowers very small, 

 yellow . . . . . . . . . . 18. Cymaria. 



1. OciMUM, Linn. 



Strongly scented herbs or undershrubs. Flowers small, in 6- to 

 10-flowered whorls, spicate or racemose ; pedicels recurved under the 

 calyx ; bracts small, caducous. Calyx ovoid or campanulate, in fruit 



