LABIATZE. XVIII. Pocostemon. 
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 I. 
MENTHOVDEZ (from mentha, mint; and idea, similar ; 
so called from the plants contained in this tribe agreeing with 
the genus Méntha 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 confluently 
1-celled, or somewhat parallelly 2-celled. 
XVIII. POGOSTEMON (from zwywv, pogon, a beard ; 
and ornpwy, stemon, a stamen ; in allusion to the filaments being 
generally bearded in the middle.) Desf. mem. mus. 2. p. 154. 
Benth. lab. p. 152. Méntha species, Roxb. 
Lin. syst. Didyndmia, Gymnospérmia. Calyx ovate-tubu- 
lar, equal, 5-toothed ; 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 Dysophjlla in the greater irregularity 
of the corolla; and from the other, Menthoidec, in the unilo- 
cular anthers, and slight declination of the stamens. 
$ 1. Paxicuzaá re. Flowers paniculately branched, ex Benth. 
1 P. rawicuLA UM (Benth. in Wall. pl. 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. 
2L. S. Native of the East Indies; as of Malabar and Tavoy, 
in humid places. Elshéltzia paniculata, Willd. spec. 3. p. 59. 
Hyssópus cristàtus, Lam. dict. 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. rLEcrRANTHOÓpEs (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. 2t. 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 Gede, Blume ; and of the Mauritius, Herb. 
D. C. Sims, bot. mag. t. 3238. Origanum Bengalénse, Burm. 
fl. ind. p. 128. t. 38. f. 1. bad. Méntha secünda, Roxb. hort. 
beng. p. 44. Wénsea pyramidàta, 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. ? 
711 
: Plectranthus-like Pogostemon. Pl. 2 to 3 
eet. 
3 P. vinrósuw (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. %. S. Native of Silhet, 
Wall. Leaves about half the size of those of the preceding. 
Panicle denser, and narrower, raceme-formed. Corolla smaller. 
Var. B, macrophyllum (Benth. lab. p. 154.) leaves twice as 
large as those of the species, less deeply and bluntly toothed. 
Villous Pogostemon. PI. 2 to 3 feet. 
4 P. parvirtorum (Benth. in Wall. pl. 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-flowered Pogostemon. Pl. 2 to 3 feet.? 
5 P. cra'sRuM (Benth. in Wall. pl. rar. asiat. 1. p. 21. 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. 
©. S. Native of Nipaul, Wall. Perílla 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. ruBERCULÓsuM (Benth. |. 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. ©.?S. Native of Nipaul, 
Wall. Differs from P. glabrum in being tubercular. Flowers 
nearly sessile. 
Tubercled Pogostemon. PI. 2 to 3 feet. ? 
7 P. Heynea‘num (Benth. l. 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. ©.? 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. parviflórum. 
Heyne's Pogostemon. PI. 2 to 3 feet. ? 
Fl. July. Clt.? 
$ 2. Racremosa. 
Benth. 
8 P. vestrrum (Benth. l. 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 
Racemes simple, somewhat spicate, ex 
