676 
longer and more loose, the lower teeth of the calyx narrowed, 
and the style more deeply bifid. 
Southern Moschosma. PI. 1 to 2 feet. 
3 M. pimmp1a‘tum (Benth. lab. 24.) stem acutely tetragonal, 
with smooth angles; racemes elongated; whorls about 10- 
flowered, glomerate, remotish. ©. S. Native of the west 
coast of Africa, within the tropics. ^ O'cymum dimidiàtum, 
Schum. pl. guin. l. c. p. 41. Very nearly allied to the pre- 
ceding; but differs in the larger leaves, longer racemes, smaller 
flowers, and usually 10-flowered, distant whorls. 
Dimidiate Moschosma. PI. 1 to 2 feet. 
4 M. ocymorpes (Benth. in Wall. pl. rar. 2. p. 13.) stem 
tetragonal, with rough angles; whorls loose, 6-flowered. ©. 
S. Native of the East Indies, in Silhet. Lumnitzera ocy- 
moldes, Jacq. 1. c. O'cymum polycladum, Link. enum. 2. p. 
119. Habit of M. polystachya ; but the leaves are more 
acutely serrated, hispid above, and canescent beneath. Upper 
lip of calyx tridentate : teeth ovate : middle tooth the broadest ; 
lower lip bidentate : teeth lanceolate, acute. 
Basil-like Moschosma. Fl. July, Sept. 
to 2 feet. 
Cit. 1823, Pl. 1 
+ A species doubtful whether belonging to the genus. 
5 M. cz'sra (Benth. lab. p. 25.) branches smoothish, terete ; 
leaves ovate, dentately crenated ; peduncles subverticillate, 
bracteate at the base. (2. S. Native country unknown. Lum- 
nitzera cae'sia, Spreng. cur. post. 223. 
Grey Moschosma. PI. 1 to 2 feet.? 
Cult. For culture and propagation see Ocy' mum, p. 674. 
VI. ORTHOSTPHON (from op0oc, orthos, straight ; and 
aipwy, siphon, a tube; in reference to the straight tube of the 
corolla.) Benth. in Bot. reg. vol. 15. lab. p. 25. 
Lin. syst. Didynàmia, Gymnospérmia. Calyx ovate-tubular, 
5-toothed; margins of superior tooth, which is ovate, mem- 
branous, decurrent, winged, deflexed after florescence. Corolla 
with a straight or incurved exserted tube, neither gibbous nor 
refracted; throat equal or rarely inflated, bilabiate ; upper lip 
3-4-cleft: lower one quite entire, concave. Stamens 4, decli- 
nate; filaments free, toothless; anthers ovate-reniform, with 
confluent cells. Style clavately capitate at apex, nearly entire 
or shortly emarginate ; stigmas confluent in the fork, sometimes 
minute, sometimes capitately thickened. Achenia rugged from 
minute dots.—Perennial herbs or undershrubs. Racemes sim- 
ple, usually elongated, rarely ovate-spike-formed ; whorls 6- 
flowered, distant, loose. Floral leaves bractea-formed, ovate, 
acuminated, reflexed, usually shorter than the pedicels. Fructi- 
ferous pedicels recurved. The chief characters which distin- 
guish this genus are the length of the tube of the corolla, and 
the capitate apex of the style. 
1 O. rusicu’Npus (Benth. in Wall. pl. rar. asiat. 2. p. 14.) 
stems tufted, leafy at the base, branched ; leaves oblong-ovate, 
coarsely toothed, narrowed at the base: lower ones petiolate : 
superior ones sessile; tube of corolla straight; throat nearly 
equal, twice as long as the calyx; stamens equal in length to 
the corolla. 24. S. Native of the East Indies. Plectranthus 
rubicünda, D. Don, prod. fl. nep. p. 116. Lumnitzera rubi- 
etinda, Spreng. cur. post. p. 223. Root often tuberous. Stems 
tetragonal, more or less villous from articulated clammy hairs. 
Leaves 2-3 inches long, full of glandular dots. Corolla white 
or pale purple. 
Var. a, mollissimus (Benth. lab. p- 26.) leaves clothed with 
soft villi on both surfaces. 2. S. Native of Nipaul and 
Kamaon, Wall. Plectránthus mollíssimus, Wall. mss. 
Var. B, canéscens (Benth. l. c.) leaves clothed with short 
LABIATZE. V. MoscHosma. 
VI. OnrHosiPHON. 
tomentose pubescence. X. S. Native of the mountains of 
Orixa, Roxb.; and at Segain, in the Birman Empire. Plec- 
tránthus tuberósus, Roxb. mss. O'cymum tuberósum, Roxb. in 
herb. Banks. 
Var. y, rigidus (Benth. 1. c.) leaves smoothish, or clothed 
with very short tomentum, %. S. Native at Nathpur and 
Monghyr, Hamilt. 
Reddish Orthosiphon. | Pl. 1 to 13 foot. 
2 O. virea‘tus (Benth. in Wall. pl. rar. 2. p. 14. lab. p. 26.) 
stems tufted at the base; branches erect, strict; leaves oblong- 
lanceolate, a little toothed, narrowed at the base, sessile, or the 
lower ones stand on short petioles ; corolla twice as long as the 
calyx : tube straightish: throat nearly equal; stamens about 
equal in length to the corolla. 2/. S. Native of the East 
Indies, at Gorakpur, and in the mountains of Morang, Hamilt. ; 
mountains about Mohun, Jacquemont. Plectranthus virgata, 
D. Don, prod. fl. nep. p. 116.  Lumnítzera virgata, Spreng. 
Syst. cur. post. 223. This species differs from O. rubicándus in 
the stems being taller; in the leaves being narrower; in the 
racemes being shorter and fewer flowered; in the whorls being 
more remote; in the corollas being smaller; in the stems being 
less leafy, and in the whole plant being smoothish. 
Twiggy Orthosiphon. Pl. 1 foot. 
3 O. rowENTOsus (Benth. l. c.) stem suffruticose ; branches 
ascending, clothed with tomentose pubescence ; leaves petiolate, 
ovate, cuneated at the base, rounded or subcordate, thickish, 
clothed with very short tomentose pubescence on both surfaces ; 
petioles and axils naked; racemes elongated ; corolla 3 times 
as long as the calyx: tube incurved a little : throat widened a 
little; stamens shorter than the corolla. h.S. Native of the 
East Indies, near Madras, Wight. O’cymum triste, Roth. nov. 
spec. 270.? Plectranthus tristis, Spreng. syst. 2. p. 690. In- 
termediate between O. viscdsus and O. glabratus. 
Tomentose Orthosiphon. Shrub. 
4 O. pa’tupus (Royle, mss. Benth. in Hook. bot. misc. 3. 
p. 370. lab. p. 708.) glabrous or finely pubescent; stem 
ascending ; leaves ovate, petiolate, bluntly and coarsely toothed, 
quite entire at the base, cuneated, and running into the petioles ; 
corolla small: tube about equal in length to the calyx: throat 
nearly equal; stamens shorter than the corolla. 4%.S. Native 
of the East Indies, on the banks of the Jumna, Royle; Cash- 
mere; and the Peninsula. Allied to O. tomentosus. 
Pale Orthosiphon. Pl. 
5 O. erasnA'rus (Benth, in Wall. pl. rar. asiat. 2. p. 14. lab. 
p. 28.) stems ascending, branched, glabrous; leaves on long 
petioles, ovate, acute, toothed, rounded or subcordate at the 
base, smoothish ; corolla incurved a little: tube twice as long 
as the calyx: throat nearly equal; stamens shorter than the 
corolla. h. S. Native of the East Indies, Arabia, Guinea, 
Madagascar. O'cymum thymiflórum, Roth. nov. spec. 269. 
Plectranthus thymiflórus, Spreng. syst. 2. p. 690. O’cymum 
suffruticosum, Schum. pl. guin. in act. hafn. suppl. O’cymum 
Thonningii, Schum. pl. guin. in act. acad. hafn. 4, p. 43. Co- 
rollas small, dark purple. Branches and often the leaves are 
purplish, glabrous, or scabrous from minute pili. 
Glabrous Orthosiphon. | Pl. 1 to 14 foot. 
6 O. ivcu’rvus (Benth. l. c.) stem procumbent at the base, 
ascending ; leaves petiolate, oblong, crenated, narrowed at both 
ends, and clothed with fine pubescence; whorls subsecund ; 
corolla villous, incurved, 3 times longer than the calyx: throat 
nearly equal; stamens about equal in length to the corolla. 
X. S. Native of the East Indies, in Silhet. Leaves 2-3 
inches long. Tube of corolla exserted, usually very much in- 
curved: lips spreading, as in Stàchys and Betónica. 
Incurved-flowered Orthosiphon. PI. 1 foot. 
7 O. sca’piczr (Benth, l. c.) stems erect, simple, scape- 
