Avicennia] LXXXII. VERBENACE^ 515 



showed an apparent relation between the number of phloem rings and the age of the 

 shoots in months. Prain (Flora of the Sundriban 331) separates A. alba, Blunie (Dudki 

 Bden) by lanceolate acute 1. and a narrow conical capsule, In the same place see his 

 remarks regarding the slanting run of the j&bres in Avicennia wood. 



OfiDEE LXXXIII. LABIATE. Gen. PL ii. 1160. 



Herbs, rarely shrubs, usually aromatic. Essential oil is secreted in hairs 

 with glandular beads or in sessile glands. Branches usually four-sided, 1. 

 opposite or whorled, stipules 0. Fl. zygomorphic, calyx persistent, 4- or 5- 

 tootbed or cleft or 2-lipped. Corolla hypogynous, gamopetaious, 2-lipped, some- 

 times regularly 4-5-lobed, lobes imbricate in bud. Stamens inserted in the 

 corolla-tube, 4, didynamous, or the 2 upper imperfect. Ovary free, usually 4- 

 lobed, supported by the annular disk, style inserted between the lobes. Ovules 

 4, erect, anatropous. Fr. of 4 one-seeded nutlets. 



A. Calyx two-lipped, stamens 2 Meriandra (p. 516). 



B. Calyx lO-toothed, upper lip of corolla densely white- 



woolly Leucas (p. 515). 



C. Calyx 5-cleft-nearly to the base, the segments much 



elongated and feathery in fruit .... Colebrookia (p. 515). 



D. Calyx 5-toothed, enlarged in fr. 



Unarmed. 

 Fruiting calyx with 5 spathulate reticulate teeth Eoylea (p. 515). 

 Fr. cal. enlarged, but not altered in shape. 



Corolla 4- or 5-lobed, ii. in narrow cjdindrical 



spikes Elsholtzia (p. 516). 



Cor. deeply 2-lipped, lower lip boat-shaped . 1. Plectranthus, 

 Armed, calyx-limb expanding in fr. into a long 



reticulated 5-angled cup Otostegua (p. 516). 



E. Calyx 5-toothedj not enlarged in fr. 



Stamens long exserted |-1 in. long .... Leucosceptrum (p. 516). 

 Stamens not much exserted. 



Filaments hairy, corolla J in. long . . . Pogostemon (p. 516). 



Filaments glabrous, corolla |-1 in. long, nutlets 



winged at apex 2. Colquhounia. 



Meriandra strobilifera, Benth. ; Collett Simla Fl. 393, fig. 125. N. W. Himalaya , 

 Sutlej to Sarda, 4-7,000 ft. A small aromatic shrub, branchlets and underside of 1 . 

 white-woolly. L. thick, crenulate, gradually narrowed from a broad hastate base, 

 upperside prominently rugose, blade 2-4, pet. J in. long. Fl. small, whit«, in tomentose 

 dense cylindrical spikes, bracts imbricating, hard, almost woody in fr. Fertile 

 stamens 2, anther-cells separate, pendulous from a long connect iye. 



Leucas lanceaefolia, Desf. ; Wight Ic. t. 1452. Nilgiris. A large often gregarious 

 shrub, branches and underside of 1. soft-tomentose, 1. lanceolate, entire, blade 8-5, 

 narrowed into pet. | in. long. Fl. white in distant whorls, bracts linear, hairy, nearly 

 as long as calyx. Calyx J in. long, teeth 10, minute, spinulose. Corolla 2-labiate, upper 

 lip concaye, densely white-woolly outside. 



Coletoroolda oppositifolia. Smith. — Syn. C. temifoUa, Hoxb. Cor. PL t. 245. Yern. 

 Dashane, Pb. ; Binda^ Bindu^ Hind. ; Chota Bhandara^ Melghat. Subhimalayan tract 

 and valleys, ascending to 4,500 ft. Punjab Salt range. Singbhum. Central provinces. 

 Berar. Western Peninsula. Tenasserim. Shan hills. Upper Burma, Hills east of 

 Bhamo, 4,000 ft. China. A large shrub or small tree, stem deeply channelled, 

 branches, petioles, underside of leaves and inflorescence densely clothed with soft 

 whitish tomentum. L. opposite or in threes, elliptic-lanceolate, crenulate, blade 

 5-12, pet. f-l| in. long, sec. n. 12-18 pair, prominent beneath. Fl. often polygamous, 

 in sessile 4-6-fld. heads, each head supported by numerous hirsute bracts, the heads 

 arranged in long paniculate spikes. Calyx divided nearly to the base into 5 linear 

 teeth, lengthening out in fr. and then capillary and feathery. Corolla white, minute, 

 tube short, lobes 4. Nut, usually one only, hairy, 



Eoylea elegans, Wall. PI. As. Ear. t. 74. Yern. Kaur^ Pb. ; Karano% Jauns.; Tifpati, 

 Garhw. Outer North West Himalaya, Kashmir to Kumaon 2-6,000 ft. A small shrub, 

 branchlets and underside of L softly tomentose, L. ovate, deep-crenate, sometimes 



