LABIATJE. VI. ORTHOSIPHOK. VII. HOSLUXDIA. VIII. PLECTRANTHUS. 



677 



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. TJ. . G. Native of Xipaul. 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. STAMI'NEUS (Benth. 1. 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. I/ . 

 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. PI. 2 to 3 feet. 



9 O. CAPITA'TUS (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. I/ . 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. PI. 1 to li 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. 



Lix. STST. Didynamia, Gymnospermia. 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. OPPOSI'TA (Beauv. fl. d'ow. 1. p. 53. t. 52.) leaves oppo- 

 site, oblong-ovate. ^ . 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. VEBTICILLA'TA (Vahl, enum. 1. p. 213.) leaves lanceo- 

 late, 3 in a whorl, fj . S. Native of Senegal, Dupuis. Branches 

 pubescent, canescent at top. Leaves 1 j 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. Flowers 

 small, clothed with canescent villi outside. 



H'Aor/erf-leaved Hoslundia. Shrub 4 to 6 feet. 



Cult. For culture and propagation see O'cymum, p. 674. 



VIII. PLECTRA'NTHUS (from s-Xijin-pov, plectron, a cock's 

 spur ; and avQoc, 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. Germanea, Lam. diet. 2. p. 

 682. Dentidia. Lour. coch. p. 369. I'sodon, Schrad. 



Lix. SYST. Didynamia, Gymnospermia. Calyx campanulate 

 in the floriferous state, 5-toothed : teeth equal, or the upper one 



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, renifonn : 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. 



SECT. I. GERMA'XEA (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. FRDTICOSCS (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. I? . G. Native of the Cape of Good Hope. Germanea 

 urticifolia, Lam. diet. 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. 



SECT. II. COLEOI'DES (from Coleus, and idea, like ; plants 

 with the habit of species of ColevtJ) Fructiferous calvx 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. VESTI'TUS (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. 

 Ij . S. Native of Madagascar, Bojer. Branches hardly tetra- 

 gonal. 



Clothed Plectranthus. Shrub. 



3 P. CAXE'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. If. . S. Native of Madagascar. Leaves coriaceous, 

 2-3 inches long. 



Canescent Plectranthus. PL ? 



4 P. LOXGIFLORCS (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, y. . S. Native of 

 Madagascar, Bojer. Crenatures of leaves often serrated : floral 

 leaves sessile. Corolla nearly an inch long. 



Long-floicered Plectranthus. PI. 



5 P. PUXCTA'TUS (Lher. stirp. 1. p. 87. t. 42.) stem herba- 



