682 



LABIATE. VIII. PLECTRANTHUS. IX. COLEUS. 



45 P. NANKINE'NSIS (Spreng. syst. 2. p. 691.) stem erect, 

 glabrous, branched ; leaves reniform, concave, glabrous, but 

 fringed, on long petioles ; spikes prismatic, axillary, tetragonal ; 

 calyx 5-cleft, shining, pilose, 6-nerved : the 3 upper segments 

 obtuse, denticulated : the 2 lower ones subulate and longer ; 

 corolla pilose : upper lip 4-cleft : lower lip larger, entire, in- 

 curved, inflexed ; anthers shorter than the corolla. 0. H. 

 Native of China, about Nankin. Dentidia Nankinensis, Lour, 

 coch. p. 369. Plant brownish purple. Anthers 2-lobed. Stig- 

 ma acute, bifid. Aspect of plant elegant, with the scent and 

 colour of Melissa cretica ; but the leaves, spikes, calyx, and 

 corolla are different. Perhaps a species of Anisochilus, or 

 /Eoll&nlhus. 



Nankin Plectranthus. PI. 1 foot. 



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



IX. COM.EUS (from Ko\eoe, koleos, a sheath ; in allusion 

 to the filaments being connected into a tube at the base, which 

 sheaths the style.) Lour. coch. p. 372. Benth. lab. p. 47. 

 O'cymum species, Lin. and other authors. Plectranthus species, 

 R. Br. and other authors. Solenostemon, Schum. pi. guin. 



LIN. SYST. Didynamia, Gymnospermia. Calyx ovate-cam- 

 panulate, erect, or often declinate or reflexed in the fructiferous 

 state : throat naked, or hispid, 5-toothed : upper tooth ovate, 

 membranous, with the margins rarely decurrent : lower teeth 

 narrower, all acute, or the lateral ones are ovate-truncate ; the 

 two lowermost ones often combined. Corolla with an exscrted, 

 defracted tube, an inflated or equal throat, and a bilabiate 

 limb : upper lip short, bluntly 3-4-cleft : lower one entire, 

 elongated, concave, usually boat-shaped, involving the genitals. 

 Stamens 4, declinate : lower ones the longest ; filaments tooth- 

 less, connected at the base into a tube, which sheaths the style ; 

 anthers ovate, reniform, with confluent cells. Style subulate at 

 apex, equally bifid ; stigmas subterminal. Achenia roundish, 

 compressed, smooth. Herbs annual or perennial at the base, 

 rarely suffruticose. Whorls usually 6-flowered, but often many- 

 flowered, sometimes very dense, and sometimes loose, cyme- 

 formed. Floral leaves bractea-formed, more or less comose 

 at the tops of the racemes before florescence, but afterwards 

 deciduous, rarely subpersistent, reflexed. The monadelphous 

 stamens distinguish this genus from all other of the order. 



SECT. I. CALCE'OLUS (from calceolus, a slipper.) Benth. lab. 

 p. 49. Whorls 6-10-flowered. Fructiferous calyx reflexed ; 

 throat villous inside. 



1 C. SPICA'TUS (Benth. in Wall. pi. rar. asiat. 2. p. 15. 

 lab. p. 49.) stem procumbent at the base ; branches ascending, 

 beset with spreading pili ; leaves petiolate, obovate, narrowed 

 at the base, fleshy : floral leaves membranous, concave, exceed- 

 ing the flowers, at length deciduous ; spikes simple, elongated, 

 dense ; whorls 6-1 0-flowered, approximate ; calyx hispid ; 

 upper tooth of calyx roundish, a little decurrent : lower teeth 

 lanceolate, acute, nearly equal ; lower lip of corolla stipitate, 

 boat-shaped. 0.? H. Native of the Peninsula of India, on 

 the mountains of Dindygul. Plectranthus canlnus, Roth, nov. 

 spec. 279. Stem bluntly tetragonal. Leaves entire, or sparingly 

 crenated, 1-2 inches long, pubescent on both surfaces : floral 

 leaves very broad, ciliated, the rest glabrous. Corolla like 

 that of C. barbatus, but smaller. 



(Spcate-flowered Coleus, PI. 1 to \\ foot. 



2 C. BARBA'TUS (Benth. in Wall. pi. rar. asiat. 2. p. 15. lab. 

 p. 49.) stem shrubby at the base, ascending, tomentosely his- 

 pid ; leaves petiolate, ovate, crenated, narrowed at the base, 

 clothed with soft tomentum when young, hispid from strigee ; 



floral leaves membranous, broad-ovate, acuminated, comose at 

 the tops of the racemes, deciduous ; racemes simple ; whorls 6- 

 flovvered, distant ; calyx hispid : upper tooth ovate, sub-decur- 

 rent : lower teeth lanceolate, acute, nearly equal ; lower lip 

 of corolla large, stipitate, boat-shaped. 17 . S. Native of the 

 East Indies, in the southern mountains of the Peninsula, My- 

 sore, Bangalore, Nipaul, and Kamaon. Plectranthus Forskce'lii, 

 Willd. spec. 3. p. 169. Sims, bot. mag. 2036. Germanea 

 Forskce'lii, Poir. diet. 2. p. 764. Plectranthus barbatus, Andr. 

 bot. rep. t. 594. Plectranthus comosus, Sims, bot. mag. 2318. 

 O'cymum asperum, Roth. nov. spec. 268. Plectranthus asper, 

 Spreng. syst. 2. p. 690. Plectranthus monadelphus, Roxb. 

 hort. beng. p. 45. Corolla beset with white hairs. 



Bearded Coleus. Fl. Aug. Nov. Clt. 1806. PI. 2 to 3 

 feet. 



3 C. HE'YNEI (Benth. lab. p. 50.) stem herbaceous, ascend- 

 ing, simple ; leaves ovate, coarsely serrated, pubescent ; ra- 

 ceme terminal, simple ; bracteas ovate-lanceolate, reflexed ; 

 filaments connate at the base. . ? S. Native of the East 

 Indies. Plectranthus monadelphus, Heyne, mss. O'cymum 

 monadelphum, Roth, nov. spec. p. 267. R. Br. append, to 

 Salt, abyss. ? Stem tetragonal, pubescent. Leaves petiolate, 

 obtuse. Whorls distinct, 6-flowered. Upper lip of calyx 

 roundish-ovate, mucronate, finely crenulated, ciliated ; segments 

 of the lower lip setaceous, 2 middle ones longer than the lateral 

 ones. Lower lip of corolla ovate, concave, crenulated. 



Heyne' s Coleus. PI. \ to 1 foot. 



4 C. ZATARHE'NDI (Benth. lab. p. 50.) leaves fleshy, stiff', 

 broad-ovate, acute, crenated, villous, truncate at the base. I/ . 

 S. Native of Arabia Felix. O'cymum a Zatarhendi, Forsk. 

 fl. aegypt. p. 109. Plectranthus crassifolius, Vahl. symb. 1. p. 

 44. Germanea crassifolia, Poir. diet. 2. p. 764. Stem slightly 

 tetragonal, beset with short bristles. Leaves \\ inch long. 

 Whorls 12-flowered. Corolla with a violet-coloured lower lip, 

 and a white upper lip. ? 



Zaterhendi's Coleus. PI. 



SECT. II. AROMA'RIA (so named from the aromatic scent of 

 the species.) Benth. lab. p. 51. Whorls dense, nearly glo- 

 bose, many-flowered. Fructiferous calyx hardly declinate ; 

 throat naked inside. 



5 C. AROMA'TICUS (Benth. in Wall. pi. rar. asiat. 2. p. 15. 

 bot. reg. 1520.) stem shrubby at the base; branches tomen- 

 tosely pubescent, or hispid ; leaves petiolate, broad-ovate, cre- 

 nated, rounded at the base, or cuneated, very thick, hispid on 

 both surfaces, or clothed with white viili ; floral leaves hardly 

 equal in length to the calyx ; racemes simple ; whorls remote ; 

 calyx tomentose : lower teeth short, setaceous, nearly equal. 

 T? . G. Native of the East Indies. Plectranthus aromaticus, 

 Roxb. hort. beng. p. 45. C. Amboinicus, Lour. coch. p. 372. 

 Plectranthus Amboinensis, Spreng. syst. 2. p. 690. ? Plec- 

 tranthus crassifolius, Hort. C. crassifolius, Benth. lab. p. 51. 

 Marrubium album Amboinicum, Rumph. amb. 5. p. 295. t. 102. 

 f. 3. Leaves very fragrant, 1-2 inches long. Whorls 20-30- 

 flowered and more. Tube of corolla about twice as long as 

 the calyx, defracted at the middle ; throat inflated : lower lip a 

 little dilated, boat-shaped. 



Aromatic Coleus. Fl. Clt. Shrub 2 to 3 feet. 



SECT. III. SOLENOSTE'MON (from era>\nv, solcn, a tube ; and 

 orrimov, stemon, a stamen ; in reference to the stamens being 

 combined into a tube at the base.) Benth. lab. p. 52. Whorls 

 loose, many-flowered. Fructiferous calyx declinate ; throat 

 naked inside. 



