LABIATJE. VI. ORTHOSIPHON. 
formed, rising from a thick, creeping, radicant base; leaves ap- 
proximate at the base of the stem, petiolate, ovate-oblong, 
coarsely toothed, narrowed at the base, smoothish ; racemes 
elongated ; corolla about 3 times as long as the calyx: tube 
straight: throat very wide; stamens hardly longer than the 
corolla. 32. G. Native of Nipaul. Stems smoothish. Leaves 
nearly all radical, 3-5 inches long. Corolla blue; upper lip 
4-toothed. 
Scape-bearing Orthosiphon. PI. 1 to 2 feet. : 
8 O. sraur'uEus (Benth. l. c.) stem herbaceous, erect, a little 
branched ; leaves petiolate, ovate, acuminated, coarsely toothed, 
cuneate and rounded at the base, or the upper ones are subcor- 
date ; racemes loose; corolla 3 times as long as the calyx: 
tube erectish : upper lip dilated; genitals much exserted. %. 
S. Native of the East Indies. O’cymum grandiflorum, Blum. 
bijdr. p. 835. but not of Lher. Herb smoothish, or clothed with 
tomentose pubescence. Flowers beautiful white ; upper lip 
4-toothed. Flowers sometimes lilac. 
Long-stamened Orthosiphon. Pl. 2 to 3 feet. 
9 O. carrrA'rus (Benth. lab. p. 29.) stem herbaceous, erect, 
a little branched ; leaves petiolate, ovate, acuminated, coarsely 
toothed, narrowed at the base ; racemes spike-formed, short, 
dense, few-flowered ; corolla more or less longer than the 
calyx ; genitals much exserted. 2/.S. Native of the tropical 
parts of America. Stems with 2 rows of short brown hairs. 
Leaves 2-3 inches long, with a few short hairs above the rest 
glabrous: floral leaves half stem-clasping. Corollas almost like 
those of O. stamineus, but the segments of the superior lip are 
narrower. 
Capitate-flowered Orthosiphon. 
Pl. 1 to 14 foot. 
Cult. 
For culture and propagation see O'cymum, p. 674. 
VII. HOSLU'NDIA (named by Thonning, in memory of 
Olaus Hoslund Smith, a young naturalist, who died of fever on 
his way to Aquapim, in Western Africa.) Vahl, enum. 1. p. 
212. Benth. lab. p. 706. 
Lin. syst. Didynamia, Gymnospérmia. Calyx tubular, 5- 
toothed. Corolla ringent ; upper lip concave. Stamens 4, 2 of 
which are fertile. Achenia baccate, within the calyx.—Shrubs 
with tetragonal branches, opposite or verticillate leaves, and 
terminal panicles of flowers. 
1 H. orrosr'rA (Beauv. fl. d'ow. 1. p. 53. t. 52.) leaves oppo- 
site, oblong-ovate. h. S. Native of Guinea. Shrub much 
branched. Branches with a villous line between the leaves. 
Leaves sweet-scented, 2 inches long, remotely serrated, quite 
entire at the base. Corolla white, twice as long as the calyx. 
Opposite-leaved Hoslundia. Shrub 5 to 6 feet. 
2 H. venTICcILLA TA (Vahl, enum. 1. p. 213.) leaves lanceo- 
late, 8 in a whorl. 5. S. Native of Senegal, Dupuis. Branches 
pubescent, canescent at top. Leaves 1} inch long, tapering to 
both ends, serrated, but entire at base and apex, glabrous above, 
canescent beneath, and beset with scattered, shining, resinous 
dots. Panicle less branched than the preceding. 
small, clothed with canescent villi outside. 
Whorled-leaved Hoslundia. Shrub 4 to 6 feet. 
Cult. For culture and propagation see O'cymum, p. 674. 
Flowers 
VIII. PLECTRA’NTHUS (from wAnxzpor, plectron, a cock's 
spur; and a»6oc, anthos, a flower; in reference to the corolla 
being spurred or gibbous above the base.) Lher. stirp. 1. p. 85. 
Benth. lab. p. 29. Plectranthus species of authors. O’cymum 
species of Lin. and other authors.— Germüànea, Lam. dict. 2. p. 
682.— Dentídia, Lour. coch. p. 369.—I’sodon, Schrad. 
_ bin. syst. Didyndmia, Gymnospérmia. Calyx campanulate 
in the floriferous state, 5-toothed : teeth equal, or the upper one 
VII. Hostunpra. 
VIII. PrEcrRANTHUS. 677 
is largest; increasing in the fructiferous state, sometimes decli- 
nate, straight, incurved, or inflated, with equal or variously bila- 
biate teeth : sometimes erect, tubular, or campanulate, equally 
5-toothed. Corolla with an exserted tube, gibbous or spurred 
above the base, at length declinate, defracted, or straightish ; 
throat equal, rarely inflated, bilabiate: upper lip 3-4-cleft, 
lower one entire, usually longer, concave. Stamens 4, decli- 
nate, didynamous : lower ones the longest; filaments free, 
toothless; anthers ovate, reniform: cells confluent, rarely a 
little distinct and divaricate. Style shortly bifid at apex : lobes 
nearly equal, subulate ; stigmas minute, terminal.— Herbs, sub- 
shrubs, and shrubs. Whorls of flowers loose, usually cymose, 
many-flowered, loosely racemose, or panicled. 
Secr. I. Germa‘nea (named after M. de Saint Germain, an 
amateur, and very distinguished cultivator of plants.) Benth. 
lab. p. 32.  Fructiferous calyx declinate; upper tooth ovate: 
the 4 lower ones lanceolate. Corolla spurred above the base.— 
A shrub, with panicled flowers. 
1 P. rruricosus (Lher. stirp. 1. p. 85. t. 41.) stem shrubby ; 
branches pubescent; leaves petiolate, broad-ovate, subcordate, 
doubly toothed, smoothish : floral ones bractea-formed ; racemes 
loose, panicled; whorls loosely 6-flowered ; calyx campanu- 
late. 5. G. Native of the Cape of Good Hope. Germanea 
urticifolia, Lam. dict. 2. p. 682. Corollas blue, elegant. Plant 
furnished with a few scattered hairs. Leaves 4 inches long. 
Shrubby Plectranthus. Fl. June, Sept. Clt. 1744. Shrub 
2 to 4 feet. 
Secr. II. Corrzorpzs (from Coleus, and idea, like; plants 
with the habit of species of Coleus.) Fructiferous calyx decli- 
nate; upper tooth ovate: lower ones narrower, and nearly 
equal: or the lower ones are longer, and subconnate at the 
base. Corolla gibbous above the base, not spurred, declinate or 
defracted.—Herbs or shrubs. Flowers racemose or subpani- 
cled. 
2 P. vEsrr rus (Benth. lab. p. 32.) stem shrubby ; branches 
densely clothed with rufous villi; leaves petiolate, oblong- 
elliptic, bluntish, crenulated, cuneated, and quite entire at the 
base, wrinkled, clothed with fuscous pubescence above, and 
rufous villi beneath; racemes simple; whorls loose, 6-flower- 
ed; lower teeth of calyx subulate; tube of corolla straight. 
5.8. Native of Madagascar, Bojer. Branches hardly tetra- 
gonal. 
Clothed Plectranthus. Shrub. 
3 P. canr’scens (Benth. lab. p. 33.) branches clothed with 
short tomentum; leaves petiolate, cordate-ovate, acute, cre- 
nated, clothed with rufous tomentum above, a little wrinkled, 
canescent beneath, and finely pubescent; upper leaves lanceo- 
late : floral ones bractea-formed ; racemes simple, terminal, ex- 
ceeding the leaves; whorls loose, 6-flowered ; calyx campanu- 
late: lower teeth subulate; tube of corolla inflated above, hardly 
gibbous. 2/. S. Native of Madagascar. Leaves coriaceous, 
2-3 inches long. 
Canescent Plectranthus. PI. ? 
4 P. tonciriorus (Benth. lab. p. 33.) stem nearly simple, 
densely tomentose; leaves on long petioles, amply cordate- 
ovate, acute, coarsely crenated, rather wrinkled, pubescent on 
both surfaces: floral ones bractea-formed; raceme simple, 
shorter than the leaves; whorls loose, 6-flowered, approxi- 
mate; calyxes campanulate: upper tooth roundish: lower 
ones subulate; tube of corolla straight. ^t. S. Native of 
Madagascar, Bojer. Crenatures of leaves often serrated : floral 
leaves sessile. Corolla nearly an inch long. ; 
Long-flowered Plectranthus. Pl. 
5 P. ruxcrA'rUs (Lher. stirp. 1. p. 87. t. 42.) stem herba- 
