ORTao6irH0x. ] I.AIUA'PJE. 237 



hairy, lowor lip with 4 subulate coeth. Corolla white Of pink, $-£ in. 

 Ions, ita tube twice as long as tho calyx. Nutlets inborDionlar, cora- 

 prossod, pimctulnte. 



Not uncommon in the Sub-Hi malayan tracts from Dehra Dun anil tho 

 Biwalik nam eastwards. Flowers April— Juno. Distbib. W. Hima- 

 laya from Kashmir to Nepal asoendingto 5.00 > ft., and from W. Bengal 

 to the Nilgiri Hills, extending to Upper Burma and China. Specimens 

 obtained by Duthie's collectors in the Bahraieh District of N. Oudli 

 are fnrnishod with large fusiform root -tubers similar to those of Rvellia 

 t uffmiicota and of other nndershrnbs which become modified by the 

 action of periodical fires. This is probably Roxburgh's Ocimum tubero- 

 sum. Beatham's Orthosiphon virgatut has taller stems much narrower 

 leaves and shorter racemes ; tho whorl* also are more remote and 

 fewer-flowered, tho calyx is coloured and tho corolla is smaller. This 

 form wis found by Wallich at Gorakhpur ; it occurs also in Dehra 

 Dun (Duthio) and up to 3,000 ft. in Kumaon (S. and W.), and was 

 collected by Collott in Upper Burma. 



3. ACROCEPHALUS, Benth. ; Fl. Brit. Ind. iv, 611. 



Annual or perennial herbs. Leaves small, opposite „or whorled, 

 petioled. Flowers very small, sessile ; whorls in terminal or axillary- 

 globose or ovoid dense heads with imbricate bracts. Calyx 2-lipped, 

 ovoid, tubular in fruit, base gibbous ; upper lip flat, usually entire, 

 lower-entire or 4-toothed, throat naked, Corolla small, somewhat 

 2-lipped upper lip subejually 4-lobeel ; lower entire scarcely longer 

 than the upper. Stamens didynamous, de.'linate ; filaments free, 

 included, toothless. Disk small, gibbous. Ovary 4-partite. style 

 shortly 2-fid. Nutlets dry, smooth, basal scar small. — Species about 

 40, in Trop. and Subtrop. Asia, also in Trop. Africa and in 

 Madagascar. 



■- 



A. capitatus. Beuth. in Wall. PL As. Rar. ii, 18 ; Ttoyle III. 301 ; 

 F. B. I.iv, Oil ; Collett Ft. Siml. 334 ; Prain Beng. PI. 844 ; Cooke 

 Fl. Bomb. ii. 443. 



An annual, 6-12 in. high. Stems simple or branching from the base, bluntly 

 4-angled, glabrous or nearly so. Leaves glabrous. £-l£ in. long, ovats 

 or lanceolate, subacute, coarsely serrate, tapering at the base and often 

 decurrent iuto an obscure petiole. Heads |-J in. in diam., globose or 

 ovoid, often with 2 spreading leaves at the base, peduncles 4-angled. 

 Whorls close ; bracts Hhorter than the fruiting calyx, broadly obovate, 

 -hortly acuminate, base enneate. Calyx (in flower) T ' D in., long, elongat- 

 ing in fruit, hairy outside ; upper lip oblong, entire, rounded at the 

 apex ; lower lip shorter, 4-toothed. Corolla ^ in. long, pale-purple. 

 Nutlets oblong-ellipsoid, compressed, dark-brown when ripe. 



