LABIATJE. VIII. PtECTRANTHUS. 



679 



floral leaves ovate-roundish, deciduous ; racemes elongated, 

 simple ; whorls rather loose, usually 10-flowered ; calyxes 

 declinate, incurved, striated, and smoothish in the fructiferous 

 state : upper tooth ovate, acuminated, scarcely decurrent : lower 

 teeth lanceolate, setaceously acuminated ; corolla about 3 lines 

 longer than the calyx : tube rather gibbous at the base, decli- 

 nate : upper lip spreading : lower one stretched out, concave. 

 0. G. Native of New Holland, about Port Jackson. Lindl. 

 bot. reg. 1098. Leaves 1 to 1$ inch long, truncate at the base, 

 or subcordate. Corollas pale purple. 



Southern Plectranthus. Fl. Aug. Sept. Clt. 1826. PI. 2 

 to 3 feet. 



16 P. PARVJFLORIS (Willd. hort. berol. 1. p. 65. but not of 

 R. Br.) stem suffruticose, erect, branched, tomentosely villous, 

 bluntly tetragonal ; leaves petiolate, broad-ovate, obtuse, cre- 

 nated, rounded at the base or cordate, wrinkled, villous on both 

 surfaces, white beneath ; floral leaves ovate-roundish, decidu- 

 ous ; racemes elongated, simple ; whorls rather loose, usually 

 10-flowered ; calyxes declinate, incurved in the fructiferous 

 state, striated : upper tooth acuminated, scarcely decurrent : 

 lower teeth lanceolate, setaceously acuminated ; corolla about 

 3 times as long as the calyx : tube subgibbous at base, decli- 

 nate. 1} . G. Native of New Holland, within the tropic, and 

 on the mountains about Port Jackson ; and Sandwich Islands. 

 Germanea parviflora, Poir. diet. 2. p. 764. ? P. graveolens, R. 

 Br. prod. p. 506. P. paniculatus, Jacq. fragm. p. 62. t. 91. 

 Flowers blue or purple. Very nearly allied to P. Auslralit ; 

 but differs in the more humble stature, in the shrubby stem, in 

 the more villous leaves, and smaller leaves and flowers. 



Small-flowered Plectranthus. Fl. June, Aug. Clt. 1805. 

 Shrub 2 to 3 feet. 



17 P. THUXBE'RGII (Benth. lab. p. 37.) stem procumbent, 

 glabrous ; leaves petiolate, roundish, bluntly crenated, fleshy, 

 quite glabrous : racemes elongated, simple ; whorls loosely 

 4-6-flowered ; floral leaves acute, shorter than the pedicels ; 

 fructiferous calyx declinate, striated, hardly incurved : upper 

 tooth ovate, acute, scarcely decurrent : lateral teeth lanceolate, 

 setaceously acuminated ; corolla 5 times as long as the calyx : 

 with a decurved tube, and an elongated incurved lower lip. 

 2. ? G. Native of the Cape of Good Hope. O'cymum verti- 

 cillatum, Lin. suppl. 276. O'cymum racemosum, Thunb. prod, 

 fl. cap. p. 96. Allied to P. Madagascariensis, but differs from 

 it in the leaves being glabrous and fleshy. Corolla like that of 

 P. Australis, but longer and more slender. 



Thunberg's Plectranthus. PI. procumbent. 



18 P. MADAGASCARIE'NSIS (Benth. lab. p. 37.) stem herba- 

 ceous, procumbent, villous ; branches ascending ; leaves petio- 

 late, roundish, obtuse, deeply crenated, very villous ; racemes 

 elongated, simple ; whorls rather loose, usually 10-flowered, 

 sessile, membranous, roundish-cuneated, deciduous, villous be- 

 neath and glabrous above ; calyxes declinate, incurved in the 

 fructiferous state, striated : upper tooth ovate, hardly acumi- 

 nated, shortly decurrent : lower teeth lanceolate, setaceously 

 acuminated ; corolla about 3 times as long as the calyx, decli- 

 nate : tube rather gibbous at the base, and defracted at the 

 middle. 1(.?S. Native of Madagascar and Mauritius, and 

 Arabia Felix. O'cymum auricula, Forsk. mss. in herb. Banks. 

 O'cymum Madagascariensis, Pers. ench. 2. p. 135. P. villosus, 

 Sieb. fl. maur. exsic. no. 153. O'cymum Hadiense, Forsk. fl. 

 aegypt. p. 109. P. Forskoe'lii, Vahl, symb. p. 44. but not of 



way. 



Madagascar Plectranthus. PI. procumbent. 



19 P. HI'RTUS (Benth. lab. p. 38.) stem procumbent, hispid ; 

 leaves petiolate, ovate, obtuse, crenated, cuneated at the base, 

 very much wrinkled, hispid ; floral leaves minute ; racemes 

 elongated, nearly simple; whorls loosely 6-10-flowered ; ca- 



lyxes declinate, incurved and striated in the fructiferous state : 

 upper tooth ovate, acute : lower teeth lanceolate, setaceously 

 acuminated ; corolla 4 times longer than the calyx : tube rather 

 gibbous at the base, defracted in the middle, ijf . ? G. Native 

 of the Cape of Good Hope, Masson. O'cymum hirtum, Banks, 

 herb. Nearly allied to P. Madagascariensis ; but differs in the 

 smaller, more wrinkled, and more hispid leaves, and in the 

 larger corolla, &c. 



Hairy Plectranthus. PI. procumbent. 



20 P. SIEBE'RI (Benth. lab. p. 710.) stem herbaceous, pro- 

 cumbent, pubescent ; leaves on short petioles, ovate, bluntish, 

 cuneated at the base, coarsely crenated, cut a little, thickish, 

 pubescent : floral ones almost wanting ; racemes loose, simple ; 

 whorls 6-flowered ; calyxes pubescent, declinate in the fructi- 

 ferous state, rather shorter than the pedicels, incurved, striated : 

 upper tooth roundish, acutish, hardly decurrent : lower lateral 

 ones lanceolate : middle ones setaceous ; corolla twice as long as 

 the calyx. If. . ? S. Native of New Holland, within the tropic, 

 Sieber. Root thickened at apex. Lower segment of corolla 

 elongated, concave. Allied to the three preceding species. 



Sieber's Plectranthus. PI. procumbent. 



21 FORSTE'RI (Benth. lab. p. 38.) stem herbaceous, erect,? 

 smoothish ; leaves petiolate, ovate, bluntish, cuneated at the 

 base, remotely crenated, smoothish : floral leaves very minute, 

 or almost wanting ; racemes loose, simple ; whorls loosely 6-10- 

 flowered ; calyx glabrous, declinate in the fructiferous state, 

 shorter than its pedicel : upper tooth ovate, acute, hardly de- 

 current : lower lateral teeth lanceolate, acute : middle one 

 setaceous ; corolla minute, hardly twice as long as the floriferous 

 calyx. O- ? S. Native of the New Hybrides ; in the islands 

 of Tanna, Forster. Plant slender, nearly glabrous. Racemes 

 slender. 



Forster't Plectranthus. PI. 1 foot. 



SECT. III. HETEROCA'LYX (from i-tpoQ, heterot, variable ; and 

 jcoXvi, calyx, a calyx.) Benth. lab. p. 39. Fructiferous calyx 

 declinate, bilabiate ; both lips almost quite entire, nearly equal. 

 Corolla gibbous above the base, not spurred, defracted. Herbs. 

 Flowers racemose. 



22 P. ? PALISOTI (Benth. lab. p. 39.) stem erect, pubescent ; 

 leaves ovate, obtuse, crenated, rounded at the base, or cordate, 

 pubescent on the nerves on both surfaces : floral leaves bractea- 

 formed ; raceme simple ; whorls 6-flowered, remote ; corolla 

 about twice as long as the calyx. 0. S. Native of Tropical 

 Africa. O'cymum monostachyum, P. Beauv. fl. dow. 2. p. 60. t. 

 95. f. 1. 



Palisot de Beauvois's Plectranthus. PI. 1 foot. 



SECT. IV. MELISSOIDES (so called from the plants having the 

 habit of species of Melissa.) Benih. lab. p. 39. Fructiferous 

 calyx declinate, bilabiate : upper lip tridentate : lower one 

 bidentate. Corolla spurred above the base. Herbs, with axil- 

 lary, few-flowered cyines. 



23 P. MELISSOIDES (Benth. lab. p. 39.) stem herbaceous, with 

 rough angles ; leaves petiolate, broad ovate, cuneated at the 

 base, nearly glabrous, rough : floral ones conform ; whorls 

 axillary, loose, remote ; peduncles trifid on both sides ; calyx 

 campanulate, glabrous; teeth of calyx all ovate, acute. Native 

 of the East Indies, in Silhet. Leaves small, scabrous from 

 minute bristles on the nerves. 



Melissa-like Plectranthus. PI. procumbent. ? 



SECT. V. I'soDON (from roc, isos, equal ; and oSovf 

 odous odontos, a tooth ; in allusion to the teeth of the calyx 

 being all equal.) Schrad. in Benth. lab. p. 40. Fructiferous 



