486 RUBIACEA. XVIII. Bouvarnra. 
corolla, which is pilose. kh. 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. hirtélla. 
Four-leaved Bouvardia. Shrub. 
5 B. Jacaurn1 (H. B. et 
Kunth, 1. c. p. 385.) branchlets 
trigonal, and are, as well as the 
under side of the leaves, hairy ; 
leaves smoothish above, 3 ina 
whorl, oblong ; corymbs some- 
what trichotomous; lobes of 
calyx 5 times shorter than the 
tube of the corolla, which is 
hairy. h.G. Native near the 
city of Mexico. Ixdra Ameri- 
cana, Jacq. hort. schoenbr. 3. p. 
9. t. 257. Ixòra ternifolia, Cav. 
icon. 4, p. 3. t. 305. exclusive 
of the description of the seeds. 
Houstodnia coccinea, Andr. bot. 
rep. 106. Delaun. herb. amat. 
t. 116. Bouvardia triphylla, var. a, Salisb. parad. no. 88. Ker, 
bot. reg. 107. Ixdra Americina and Hedydtis fruticédsa, 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. B, exogyna (D. C. prod. 4. p. 865.) leaves oblong-lan- 
ceolate, acuminated; style exserted. h. G. Cultivated in 
gardens. 
Var. y, ovata (D. C. 1. c.) leaves ovate, acute. h. G. Bou- 
vardia triphylla, var. 3, Salisb. parad. t. 88. 
Jacquin's Bouvardia. Fl. April, Nov. Clt. 1794. Shrub 2 
to 3 feet. 
6 B.? opova'ra (H. B. et Kunth, l. c. p. 385.) branches 
tetragonal, striated, and are, as well as the leaves, smoothish ; 
leaves 4 in a whorl, obovate; corymbs trichotomous. Y. G. 
Native of Mexico, between Chapoltepec and Tezcuco. Herb 
1-3 feet high, ex Bonpland. Perhaps this is a true species of 
Bouvárdia, ex Kunth. 
Obovate-leaved Bouvardia. Pl. 1 to 3 feet. 
Corolla nith a beardless tube. 
7 B. versrcoror (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. h.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-flowered Bouvardia. Fl. July, Sept. Clt. 1814. 
Shrub 2 to 3 feet. 
8 B. rrirtora (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. 
h.G. Native of the temperate parts of Mexico. Céstrum 
spermacocifolium, 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. roncırròra (H. B. et Kunth, l. 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 
§ 2. Leaves opposite. 
XIX. Prnexneya. XX. CALYCOPHYLLUM. 
corolla, which is glabrous. k.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, Henke. Ægi- 
nètia longifléra, Cav. icon. 6. p. 51. t. 572. f. 1. Corolla 
white, with the tube 2 or 3 inches Jong. Stipulas usually cleft 
into 2 awns at the apex. 
Long-flowered Bouvardia. Clt. 1827. Shrub 2 to 3 feet. 
10 B. Cavanitte'sn (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. 
JEginétia multifldra, Cav. icon. 6. p. 52. t. 572. f. 2. without 
flowers. : 
Cavanilles’s Bouvardia. Shrub. 
11 B. corniro'rra (D. C. prod. 4. p. 366.) suffruticose ; leaves 
opposite, on very short petioles, cordate, acute ; corymbs termi- 
nal, sessile, 8-10-flowered. h.G. Native of Mexico. Ixora 
cordifdlia, 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. Geertn. fil. carp. 3. p. 80. t, 194. D. C. 
prod. 4. p. 366. D. Don, in Lin. trans. vol. 17. ined.—Pink- 
néa, Pers. ench. 1. p. 197.—Musse’‘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 eestivation. 
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 winge 
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 brane’) 
Stipulas deciduous. Flowers rather large, pubescent, pale Ha 
bracteolate, disposed in cymes; the cymes rising from the axe 
of the upper leaves. Large calycine leaves, white, tinged with red. 
1 P. pu'sens (Mich. l. c) h.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- 
chòna Caroliniàna, Poir. dict. 6. p. 40. Pinknèya pubeses 
Pers. ench. 1. p. 197. The bark of this tree is used in place 0 
Peruvian bark in Georgia and Carolina, under the name of fever 
bark. A 
Downy Pinckneya. Fl. June, July. Clt. 1786. Tree 20 f 
Cult. This tree is usually treated as a greenhouse plant F 
Britain; but thrives much better against a south wall, with t 5 
protection of a mat in severe weather. A mixture of sand zr 
peat is the best soil for it; and cuttings planted in sand, w! 
a hand-glass placed over them, will strike root. 
XX. CALYCOPHY’LLUM (from xadvé, calya, a calyx, = 
vov, phyllon, a leaf; in allusion to one of the teeth s 6) 
calyx being expanded into a large petiolate coloured ge 
D. C. prod. 4. p. 367.—Macrocnèmum, Vahl, symb. 2. p. 9% 
but not of Browne.—Mussæ’nda species, Poir. 
