Flora of the Malayan Peninsula. 101 



secondary nerves, ovate-acute, with entire rounded rarely cuneate base, 

 and short, entire, blunt apex ; margins elsewhere rather widely crenate ; 

 2 to 4 in. long, 1-25 to 1-75 in. wide ; petiole 1 to 2 in. long. Floioers 

 in irregularly branched cymes disposed in stoutish thyrses 3 to 6 in. 

 long, 1-5 in. across ; bracts ovate-acute, pubescent, -15 in. long, 

 deciduous. Calyx in fruit -2 in. long, sparingly gland-dotted ; pedicels 

 •2 in. long, pubescent; the two lower teeth subulate, the two lateral 

 oblong-obtuse, shorter than the upper ovate- subacute. Corolla blue 

 and white, '35 in. long ; the tube abruptly decurved, shorter than the 

 lower lip ; upper lip very short. Filaments connate far beyond point of 

 attachment to corolla-tube. Nutlets orbicular, brown, almost shining. 

 Benth. Lab. Gen. & Spec. 54 and in DC. Prodr. XII. 74 ; Wall. Cat. 

 2733; NunesFl. Filip. t. 208; Miq. Fl. Ind. Bat. II.. 951 ; Hook. f. 

 Fl. Br. Ind. IV. 626. 



In most of the Provinces. — Disteib. Malay Archipelago ; 

 Philippines ; Polynesia. 



6. PoGOSTEMON, Desf. 



Herbs or undershrubs, often strongly scented. Leaves usually 

 opposite. Floioers small, in simple or paniculate spikes or contracted 

 racemes formed of many dense-flowered subcapitate whorls. Calyx 

 almost equally 5-toothed. Corolla 2-lipped ; upper lip 3-lobed, the 

 lobes subequal or the central- one rather longer and narrower than the 

 lateral ones ; the lower lip flat, patent, entire. Stamens 4, exserted, 

 straight or declinate, the lower pair rather shorter than the upper ; 

 filaments bearded ; anther-cells confluent. Disk subentire, uniform. 

 Style shortly 2-fid, the arms subulate, subequal. Nutlets smooth, 

 ovoid or ellipsoid. — Distrib. Species about 30, throughout South- 

 eastern Asia. 



Leaves membranous, sparingly puberulous or almost glabrous ; 

 whorls separated by distinct interspaces throughout the spikes ; 

 corolla glabrous externally, except for a few hairs on margin of 

 lower lip . . . . . . . . . . 1. P. Heyneanus. 



Leaves herbaceous, densely pubescent, especially beneath ; 

 whorls contiguous throughout the spikes or only the lowest 

 separated by an interspace ; corolla uniformly pubescent 

 externally . . . . . . . . . . 2. P. Cahlin. 



1. PoGOSTEMON Heyneanus, Benth. in Wall. PI. As. Ear. I. 31 (1830). 

 An erect branching herb, 2 to 4 ft. high. Stems and branches slender, 

 sparsely pubescent. Leaves opposite, thinly membranous, very 

 sparingly puberulous or sometimes almost glabrous on both surfaces, 



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