LABIATE. XVIII. POGOSTEMON. 



711 



a soil they grow stronger : nor are the plants so strong scented, 

 or fit for medicinal uses, as those which grow in barren, rocky 

 places. 



Tribe II. 



MENTHOI'DEJE (from mentha, mint ; and idea, similar ; 

 so called from the plants contained in this tribe agreeing with 

 the genus Mentha in the characters given below.) Benth. lab. 

 p. 152. Corolla somewhat campanulate, or funnel-shaped; 

 tube shorter than the calyx, or scarcely longer ; limb 4-5-cleft ; 

 lobes nearly equal. Stamens distant, straight, or diverging, not 

 approximate by pairs, nearly equal, or the lower ones are long- 

 est ; the superior ones sometimes abortive ; anthers confluemly 

 1 -celled, or somewhat parallelly 2-celled. 



XVIII. FOGOSTE'MON (from ywv, pogon, a beard; 

 and origin)-, stemon, a stamen ; in allusion to the filaments being 

 generally bearded in the middle.) Desf. mem. mus. 2. p. 154. 

 Benth. lab. p. 152. Mentha species, Roxb. 



LIN. SYST. Didynamia, Gyrnnospermia. Calyx ovate-tubu- 

 Jar, equal, 5-tootlied ; throat naked inside. Corolla with an 

 inclosed tube, and a quadrifid, somewhat bilabiate limb : upper 

 lip trifid : lower one entire : lobes all entire, nearly equal, 

 spreading. Stamens 4, exserted, straight, or a little declinate ; 

 filaments bearded in the middle, or naked ; anthers terminal, 1- 

 celled, dehiscing by a transverse chink. Style almost equally 

 bifid : lobes subulate ; stigmas minute, terminal. Herbs. 

 Leaves opposite, petiolate, entire, toothed, or cut. Whorls 

 many-flowered, equal, or secund, sometimes propped by bracteas, 

 glomerately spiked, the spikelets racemosely panicled : some- 

 times loosely approximate into simple, spike-formed racemes. 

 This genus differs from Dysophylla in the greater irregularity 

 of the corolla ; and from the other, Mentho'ideae, in the unilo- 

 cular anthers, and slight declination of the stamens. 



1. PAMCCLA'TJE. Flowers paniculately branched, ex Benth. 



1 P. PANICULA'TOM (Benth. in Wall. pi. rar. asiat, 1. p. 30. 

 lab. p. 153.) stem erect, downy, with erect pili ; leaves une- 

 qually ovate, deeply serrated, narrowed at the base ; whorls 

 globose, secund, remote, racemose ; racemes terminal ; bracteas 

 broad-ovate, membranous, exceeding the calyxes ; calyx mem- 

 branous, pubescent, with lanceolate teeth ; filaments bearded. 

 %. S. Native of the East Indies; as of Malabar and Tavoy, 

 in humid places. Elsholtzia paniculata, Willd. spec. 3. p. 59. 

 Hyssopus cristatus, Lam. diet. 3. p. 187. Manam podam, 

 Rheed. mal. 10. p. 129. t. 65. Leaves 3 inches long. Whorls 

 distinct. Corollas slender. 



Panicled Pogostemon. PI. 2 to 3 feet. 



2 P. PLECTRANTHOIDES (Desf. ann. mus. 2. p. 154. t. 6. 

 Benth. lab. p. 153.) clothed with hoary pubescence ; stem 

 erect ; leaves ovate, cuneated, or rounded at the base, doubly 

 serrated ; flowers sub-secund, glomerately spicate ; spikes ovate- 

 cylindrical, pedunculate, panicled ; bracteas broad-ovate, stri- 

 ated, glandularly dotted, exceeding the calyxes ; calyx mem- 

 branous, hairy, glandularly dotted, with broad-lanceolate, acute 

 teeth; filaments bearded. 1. S. Native of the East Indies, 

 in humid places ; as of Hindostan, Nipaul, and Kamaon, Wall. ; 

 towards Deyra Dhoon, Roxb. ; Kheeree pass, Royle ; Java, at 

 the foot of Mount Cede, Blume ; and of the Mauritius, Herb. 

 D. C. Sims, bot. mag. t. 3238. Origanum Bengalense, Burm. 

 fl. ind. p. 128. t. 38. f. 1. bad. Mentha secunda, Roxb. hort. 

 beng. p. 44. Wensea pyramidata, Wendl. coll. 2. p. 26. t. 84. 

 Branches bluntly tetragonal. Leaves 2-3 inches long. Whorls 

 densely glomerate. Bracteas and calyxes coloured at top, vil- 

 lous. Genitals twice as long as the corolla. Corolla white. ? 



Pkctranthus-like Pogostemon. Fl. July. Clt. ? PI. 2 to 3 

 feet. 



3 P. VILLOSUM (Benth. lab. p. 153.) villous ; stem erectish ; 

 leaves ovate, rounded at the base, narrowed into the petioles, 

 crenated ; flowers sub-secund, glomerately spicate ; spikelets 

 cylindrical, nearly sessile, panicled ; bracteas ovate, striated, 

 pubescent, equalling the calyxes ; calyx villous, with lanceolate, 

 acute teeth ; filaments bearded, y. . S. Native of Silhet, 

 Wall. Leaves about half the size of those of the preceding. 

 Panicle denser, and narrower, raceme-formed. Corolla smaller. 



Var. ft, macrophyllum (Benth. lab. p. 154.) leaves twice as 

 large as those of the species, less deeply and bluntly toothed. 

 7/.S. 



Ftllous Pogostemon. PI. 2 to 3 feet. 



4 P. PARVIFLORCM (Benth. in Wall. pi. rar. asiat. 1. p. 31. 

 lab. p. 154.) stem ascending, finely pubescent ; leaves smooth- 

 ish, ovate-oblong, narrowed at the base, doubly crenated ; flow- 

 ers sub-secund, glomerately spicate ; spikelets nearly sessile, 

 racemose ; racemes axillary, and terminal ; bracteas ovate, stri- 

 ated, pubescent, exceeding the flowers ; calyx villous, mem- 

 branous, with narrow-lanceolate teeth ; filaments bearded. 2/ . 

 S. Native of Silhet, Wall. Stem procumbent at the base, at 

 length glabrous. Leaves 3-4 inches long, on short petioles. 

 Panicle raceme-formed, more slender than in P. plectranthoides. 

 Whorls, calyxes, and flowers one-half smaller. A variety of 

 this was gathered by Jacquemont, at Saharumpur, with glabrous 

 leaves, and villous panicles. 



Small-jlonered Pogostemon. PI. 2 to 3 feet. ? 



5 P. GLA'BRUK (Benth. in Wall. pi. rar. asiat. 1. p. 31. lab. p. 

 154.) quite glabrous; stem erect; leaves ovate, narrowed at 

 the base, crenated ; whorls nearly equal, globose, spicate ; 

 spikes panicled ; bracteas ovate, 3 times shorter than the calyx ; 

 calyx glabrous, with ovate-lanceolate teeth ; filaments bearded. 

 O- S. Native of Nipaul, Wall. Perffla polystachya, D. Don, 

 prod. fl. nep. p. 115. Habit of P. plectranthoides, but differs 

 in being glabrous in all its parts, &c. Stem tetragonal. 



Glabrous Pogostemon. PI. 2 to 3 feet. 



6 P. TUBERCCLOSUM (Benth. 1. c.) pubescent from short, stel- 

 late pili, which rise from tubercles ; stem erect ; leaves ovate, 

 narrowed at the base, doubly serrated, tuberculately wrinkled 

 on both surfaces ; whorls equal, globose, remote, racemose ; 

 racemes panicled ; bracteas minute ; calyx tubercular, with 

 subulate teeth ; filaments bearded. 0. ? S. Native of Nipaul, 

 Wall. Differs from P. glabrum in being tubercular. Flowers 

 nearly sessile. 



Tubercled Pogostemon. PL 2 to 3 feet. ? 



7 P. HEYNEA'NUM (Benth. 1. c.) stem ascending, pubescent; 

 leaves nearly glabrous, ovate, narrowed at the base, irregularly 

 crenated ; whorls sub-secund, interruptedly spiked ; spikes 

 panicled ; bracteas ovate, almost nerveless, about equal in length 

 to the calyxes ; calyx pubescent, with ovate teeth ; filaments 

 bearded. 0. ? S. Native of the Peninsula of India, Java, 

 Ceylon, in boggy places. Origanum I'ndicum, Roth. nov. spec. 

 p. 265. Cottam, Rheed. mal. 10. p. 153. t. 77. Differs from 

 the preceding in the whorls being nearly all distinct. Corollas 

 like those of P. parviflorum. 



Heyne's Pogostemon. PL 2 to 3 feet. ? 



2. RACEMOS.E. Racemes simple, somewhat spicate, ex 

 Benth. 



8 P. VESTI'TUM (Benth. 1. c.) clothed with tomentose wool ; 

 stem ascending ; leaves ovate, crenated, subcordate at the base, 

 wrinkled, clothed with soft tomentum : upper floral leaves shorter 

 than the calyxes ; racemes simple ; whorls secund, approx- 

 imate ; bracteas linear-subulate ; calyx villous, with lanceolate 

 teeth; filaments bearded, h.? S. Native of the Peninsula 



