486 



RUBIACE.E. XVIII. BOUVARDIA. XIX. PINCKNEYA. XX. CALYCOPHYLLUM. 



corolla, which is pilose. I? . G. Native about the city of 

 Mexico. Carphalea? pubiflora, Moc. et Sesse, fl. mex. icon, 

 ined. Flowers scarlet, 12-14 lines long. Perhaps only a variety 

 of B. hirtella. 



Four-leaved Bouvardia. Shrub. 



5 B. JAcaui'Ni (H. B. et FIG. 89. 

 Kunth, 1. c. p. 385.) branchlets 



trigonal, and are, as well as the 

 under side of the leaves, hairy ; 

 leaves smoothish above, 3 in a 

 whorl, oblong ; corymbs some- 

 what trichotomous ; lobes of 

 calyx 5 times shorter than the 

 tube of the corolla, which is 

 hairy. Tj . G. Native near the 

 city of Mexico. Ixora Ameri- 

 cana, Jacq. hort. schcenbr. 3. p. 

 9. t. 257. Ixora ternifolia, Cav. 

 icon. 4. p. 3. t. 305. exclusive 

 of the description of the seeds. 

 Houstonia coccmea, Andr. hot. 

 rep. 106. Delaun. herb. amat. 



t. 116. Bouvardia triphylla, var. a, Salisb. parad. no. 88. Ker, 

 bot. reg. 107. Ix6ra Americana and Hedyotis fruticosa, Moc. 

 et Sesse, fl. mex. icon. ined. Tlacoxochilt jasminiflora, Hern, 

 mex. p. 231. with a figure. Corolla scarlet, with the tube about 

 9 lines long. There are varieties of this species with either 

 pubescent or glabrous leaves. 



Var. ft, exogyna (D. C. prod. 4. p. 365.) leaves oblong-lan- 

 ceolate, acuminated ; style exserted. T? . G. Cultivated in 

 gardens. 



Var. y, ovata (D. C. 1. c.) leaves ovate, acute. I? . G. Bou- 

 vardia triphylla, var. ft, Salisb. parad. t. 88. 



Jacquin's Bouvardia. Fl. April, Nov. Clt. 1794. Shrub 2 

 to 3 feet. 



6 B. ? OBOVA'TA (H. B. et Kunth, 1. c. p. 385.) branches 

 tetragonal, striated, and are, as well as the leaves, smoothish ; 

 leaves 4 in a whorl, obovate ; corymbs trichotomous. If. . G. 

 Native of Mexico, between Chapoltepec and Tezcuco. Herb 

 1-3 feet high, ex Bonpland. Perhaps this is a true species of 

 Bouvardia, ex Kunth. 



O&ot-afe-leaved Bouvardia. PI. 1 to 3 feet. 



2. Leaves opposite. Corolla with a beardless tube. 



7 B. VERSI'COLOR (Ker, bot. reg. t. 254.) branches terete, 

 glabrous, velvety while young ; leaves opposite, lanceolate, 

 ciliated ; corymbs 3-flowered, trichotomous, drooping ; lobes of 

 calyx 8 times shorter than the tube of the corolla, which is gla- 

 brous both inside and outside. Fj G. Native of South Ame- 

 rica, but in what place is unknown. Corolla with a scarlet tube, 

 which is 9 lines long, but having the limb yellowish inside. 



Party-coloured-dowered Bouvardia. Fl. July, Sept. Clt. 1814. 

 Shrub 2 to 3 feet. 



8 B. TRIFLORA (H. B. et Kunth, nov. gen. amer. 3. p. 386. t. 

 288.) branches terete, glabrous ; branchlets rather hairy ; leaves 

 opposite, lanceolate-oblong, acute, rounded at the base, beset with 

 fine hairs ; peduncles terminal, 3-flowered; lobes of calyx 3 or 

 4 times shorter than the tube of the corolla, which is glabrous. 

 *2 . G. Native of the temperate parts of Mexico. Centrum 

 spermacocif61ium, Willd. rel. mss. in Roem. et Schultes, syst. 

 4. p. 808. Corolla white, with the tube 5-6 lines long. 



Three-flowered Bouvardia. Shrub. 



9 B. LONGIFLORA (H. B. et Kunth, 1. c. p. 386.) branches 

 compressedly tetragonal, glabrous ; leaves opposite, oblong, 

 acute, cuneated at the base, glabrous ; flowers terminal, solitary, 

 sessile ; lobes of calyx 3 or 4 times shorter than the tube of the 



corolla, which is glabrous. ^ . G. Native of temperate parts 

 of Mexico, near Santa Anita, where it is called by the natives 

 Flor de San Juan ; also near Queretaro and Huanajuato, ex 

 Cav. ; and at Pascuaro, ex Cervantes, in herb. Haenke. ^Egi- 

 netia longiflora, Cav. icon. 6. p. 51. t. 572. f. 1. Corolla 

 white, with the tube 2 or 3 inches long. Stipulas usually cleft 

 into 2 awns at the apex. 



Long-flowered Bouvardia. Clt. 1827. Shrub 2 to 3 feet. 



10 B. CAVANILLE'SII (D. C. prod. 4. p. 366.) sufFruticose ; 

 leaves opposite, ovate-lanceolate, acuminated, rather villous be- 

 neath ; peduncles terminal, trifid, 3-flowered; capsule trans- 

 versely ovate, somewhat didymous. ^ . G. Native of Mexico. 

 jEginetia multiflora, Cav. icon. 6. p. 52. t. 572. f. 2. without 

 flowers. 



Cavanilles's Bouvardia. Shrub. 



11 B. CORDIFO^LIA (D. C. prod. 4. p. 366.) suffruticose ; leaves 

 opposite, on very short petioles, cordate, acute ; corymbs termi- 

 nal, sessile, 8-1 0-flowered. J? . G. Native of Mexico. Ixora 

 cordifolia, Moc. et Sesse, fl. mex. icon. ined. Corolla from dirty 

 yellow to scarlet, 6-7 lines long. 



Heart-leaved Bouvardia. Shrub. 



Cult. The species of this genus usually bear red or scarlet 

 flowers, and are therefore worth cultivating in gardens. The 

 readiest way of increasing them is by pieces of the roots, planted 

 in a pot of good mould, and placed in a warm situation ; or they 

 may be increased by young cuttings, which root readily under a 

 hand-glass, in a mixture of sand, peat, and loam, in heat. 



XIX. PINCKNE'YA (named after an American gentleman 

 of the name of Pinckney, who is now forgotten). Michx. fl.bor. 

 amer. 1. p. 103. t. 13. Gaertn. fil. carp. 3. p. 80. t. 194. D. C. 

 prod. 4. p. 366. D. Don, in Lin. trans, vol. 17. ined. Pink- 

 nea, Pers. ench. 1. p. \Z1. Mussaa'nda species, Juss. Cin- 

 chona species, Poir. 



LIN. SYST. Pentdndria, Monogynia. Calyx 5-parted, having 

 one of the segments large, coriaceous, and coloured. Corolla 

 tubular, with a 5-cleft limb, which is valvate in aestivation. 

 Stamens 5, exserted, inserted in the base of the tube ; anthers 

 peltate. Stigma emarginate. Capsule 2-celled, dehiscing at 

 the dissepiment. Seeds compressed, surrounded by a winged 

 membranous margin, which is emarginate at the base. A tree, 

 native of North America. Branches opposite. Leaves oval, 

 acute at both ends, tomentose beneath, as well as the branches. 

 Stipulas deciduous. Flowers rather large, pubescent, pale red, 

 bracteolate, disposed in cymes ; the cymes rising from the axils 

 of the upper leaves. Large calycine leaves, white, tinged with red. 



1 P. PU'BENS (Mich. 1. c.) I? . F. Native of North Ame- 

 rica, in Georgia, on the banks of the river St. Maria, in muddy 

 places ; and on the banks of the New river in South Carolina. 

 Pursh, fl. amer. sept. 1. p. 158. Ell. sketch. 1. p. 268. Cin- 

 chona Caroliniana, Poir. diet. 6. p. 40. Pinkneya pubscens, 

 Pers. ench. 1. p. 197. The bark of this tree is used in place of 

 Peruvian bark in Georgia and Carolina, under the name of fever 

 bark. 



Downy Pinckneya. Fl. June, July. Clt. 1786. Tree 20 ft. 



Cult. This tree is usually treated as a greenhouse plant in 

 Britain ; but thrives much better against a south wall, with the 

 protection of a mat in severe weather. A mixture of sand and 

 peat is the best soil for it ; and cuttings planted in sand, with 

 a hand-glass placed over them, will strike root. 



XX. CALYCOPHY'LLUM (from Ka\v, calyx, a calyx, and 

 <f>v\\ov, phyllon, a leaf; in allusion to one of the teeth of the 

 calyx being expanded into a large petiolate coloured leaf.) 

 D. C. prod. 4. p. 367. Macrocnemum, Vahl, symb. 2. p. 38. 

 but not of Browne Mussae'nda species, Poir. 



