718 Flora of the Malayan Peninsula. 



Whorls numerous, distant, axillary ; calyx-teeth long, slender ; 



corolla small ; tube not annulate within , . . . 1. L. martinicensis. 



Whorls few, usually all or nearly all terminal ; calyx-teeth 



short ; corolla medium ; tube annulate within near the 



middle : — 



Whole plant sparingly beset with hispidulous hairs ; calyx- 

 mouth obliquely campanulate, not contracted ; teeth erect . . 2. L. zeylanica. 

 Whole plant smooth, finely puberulous ; calyx-mouth pro- 

 jecting above in a large triangular lip, with the small teeth 

 ascending along its margins, the mouth below forming a 

 rounded sinus . . .. .. .. ■ . . 3. L.lavandulifolia- 



1. Leucas martinicensis, E. Br. Prodr. 504 (1810). A tall, stout, 

 annvial herb, 2 to 4 ft. high, more or less branched. Stem and branches 

 hksute, 4-angled and 4-grooved, angles rounded. Leaves opposite, 

 membranous, hirsute above and below, ovate, oblong or wide-lanceolate, 

 obtuse ; base cuneate, rarely rounded, entire ; margin elsewhere widely 

 and rather deeply crenate ; 2-5 to 3'5 in. long, 1 to 1"75 in. wide ; 

 petiole hirsute, 4 to ■? in. long. Floioers sessile, in numerous, distant, 

 axillary, globose, many-flowered whorls which are "75 to 1-25 in. across; 

 the floral leaves decreasing upwards, especially in width of blade and 

 length of petiole ; bracteoles green, -25 to "35 in. long, narrowly Hnear- 

 lanceolate or subulate, spinescent at their tips with pale slender a^vns. 

 Calyx -4 in. (in fruit "6 in.) long, tubular, sigmoid, pubescent externally ; 

 tube within glabrous and closely reticulate ; mouth with a few short 

 villi within, oblique ; teeth 10, all lanceolate, ciliate, with fine spinescent 

 tips ; the uppermost largest, -2 in. long ; the others alternately longer 

 and shorter, -1 and '12 in. long. Corolla white, small, -35 in. long ; 

 tube -2 in. long, not annulate within ; lower lip spreading, the lateral 

 lobes oblong rounded, wider than the oblong 2-fid central ; upper lip 

 erect, white-villous. Nutlets -1 in. long, obovoid-oblong, obliquely 

 truncate at apex, angular on inner face, rounded on outer, dark-brown, 

 shining. Benth. in Wall. PI. As. Ear. I. 60, in Lab. Gen. & Sp. 617, and in 

 DC. Prodi'. XII. 533 ; Miq. M. Ind. Bat. II. 983 ; Hook. f. Fl. Br. Ind. 

 IV. 688. L. polyce]jhalay Wall. Cat. 2051. Phlomis martinicensis, Sw. 

 Prodr. Veg. Ind. Occ. 88. 



Perak: in waste places, Scortechinil — Distrib. Tropical America ; 

 Tropical and South Africa ; India and Indo-China. 



An introduced and as yet apparently a rare plant in our area. 



2. Leucas zeylanica, E. Br. Prodr. 504 (1810). An erect annual 

 herb, 6 to 20 in. in height, simple or branched. Stems and branches 

 4-angled, hispidulous with scattered spreading hairs. Leaves opposite, 

 decussate, membranous, dark-green above, uniformly but sparsely beset 



