482 
trans, vol. 74. Cinchdna Luciana, Vittm. summ. suppl. 1. p. 
264. Kinkina Piton. Act. nat. cur. 1787. Rozier, journ. de 
phys. 1781. p. 169-179. and 1789. p. 129-132. t.1. Murr. 
append. med. vol. 1. p. 941., Panicle large, corymbose, ter- 
minal. Leaves like those of Cofféa Ardbica, 5-6 inches long. 
Corolla 2 inches long before expansion, of a whitish purple 
colour. The Quinquina Piton is of a cinnamon colour, and is 
used as a succedaneum for Peruvian bark, but is somewhat 
drastic. 
Bundle-flowered Exostemma. Clt. 1794. Tree 20 to 80 ft. 
11 E. carrra‘rum (Spreng. new. entd. 2. p. 143.) leaves ovate, 
coriaceous, glabrous; flowers capitate ; calyx small, 5-toothed ; 
corolla with a long tube, and revolute segments. h. S. Native 
of South America. Perhaps only a variety of E. floribtindum. 
Specimens of this tree were received under the name of St. 
Lucia bark. 
Capitate-flowered Exostemma. Tree. 
Secr. II. Bracnya’nruum (from Spayve, brachys, short, and 
av@oc, anthos, a flower ; in reference to the tube of the flower 
being shorter than the segments). D. C. prod. 4. p. 360. Limb 
of calyx divided even to the base into teeth. Corolla having 
the tube shorter than the segments of the limb, or at the longest 
hardly equal in length to them. Stigma sometimes undivided, 
and sometimes somewhat 2-lobed. Corolla glabrous, or pu- 
bescent on the outside. 
12 E. Puirirricum (Roem. et Schultes, syst. 5. p. 366.) 
leaves oval, acute, crowded, and are as well as the branches and 
flowers glabrous; peduncles terminal, corymbose; teeth of 
calyx short, acute; tube of corolla rather shorter than the 
segments of the limb; filaments hairy. h. S. Native of the 
Philippine Islands, at Manilla: and in Santa Cruz de la Laguna. 
Cinchona Philippica, Cav. icon. 4. t. 329. Peduncles axillary, 
trichotomous, corymbose, bearing 2 leaves at the origin of the 
branches, about the length of the leaves. Corolla 9 lines long 
before expansion. Stigma clavate, marked by a furrow on 
each side, probably from the cohesion of the lobes. Capsule 
turbinate, 5 lines long, crowned by the calycine limb. Bark 
bitter and astringent. 
Philippine Exostemma. Tree 10 to 15 feet. 
13 E. corympirerum (Roem. et Schultes, syst. 5. p. 20.) 
leaves oblong, acute, and are as well as the branches and flowers 
glabrous ; peduncles axillary, corymbose, bearing 2 leaves just 
below the ramifications; teeth of calyx short, acute ; segments 
of corolla hardly shorter than the tube. h.S. Native of the 
islands of Tongatabu and Eaove, in the Pacific Ocean, where it 
is cultivated for the elegance and odour of its flowers. Cin- 
chona corymbifera, Forst. act. nov. ups. 3. p. 176. Lin. fil. 
suppl. p. 144. Lamb. cinch. p. 25. t. 5. Leaves deep green, size 
of those of Cofféa Arábica: having the nerve purplish beneath. 
Corymbs trichotomous. The bark is very bitter and sub- 
astringent, and very like Jesuits’ bark. Flowers white, but red- 
dish on the outside. 
Corymb-bearing Exostemma. Tree 10 to 15 feet. 
14 E. Peruvia'num (Humb. et Bonpl. pl. equin. 1. p. 133. 
t. 38.) leaves ovate or oblong, acute, rounded at the base: the 
superior ones sessile and cordate; corymbs terminal, sessile ; 
peduncles and calyxes pubescent ; corolla silky outside. h.S. 
Native of Peru, on the declivities of the Andes, in cold places 
by the sides of streams, at the altitude of 3000 feet. H.B. et 
Kunth, nov. gen. amer. 3, p. 404. Cinchdna Peruvidna, Poir. 
suppl. 4. pe 640. Flowers rose-coloured. Leaves smooth, 
deep green above. Segments of corolla hardly shorter than the 
tube. Filaments glabrous, adnate to the throat of the corolla. 
Stigma obsoletely 2-lobed. Teeth of calyx acute. 
Peruvian Exostemma. Tree 10 to 12 feet. 
RUBIACEÆ. XV. Exostemma. 
15 E. corymso'sum (Spreng. syst. 1. p. 706.) leaves oblong- 
lanceolate, acute, and are as well as the branches and flowers 
glabrous; corymbs terminal, brachiate; teeth of calyx almost 
linear, acute, spreading; segments of corolla about equal in 
length to the tube. h. S. Native of Peru, in hot places 
between Chaclla and Muna. Portlandia corymbésa, Ruiz et 
Pav. fl. per. 2. p. 49. t. 190. f. a. Leaves shining above, 2-3 
inches long. Corolla white: having the limb reflexed. Capsule 
fuscous, turbinate. Seeds girded by a membranous wing, hence 
it is not a species of Portlandia. 
Corymbose-flowered Exostemma. ‘Tree 15 to 18 feet. 
16 E. pissimitrrto’rum (Roem. et Schultes, syst. 5. p. 17.) 
leaves cordate-oblong, quite glabrous; limb of corolla longer 
than the tube; capsules almost linear, very narrow. heise 
Native of South America, at the altitude of 6000 or 7000 feet. 
Cinchdna dissimilifdrum, Mutis, in Humb. berl. mag. nat. 1. 
p. 120. 
Dissimilar-flowered Exostemma. Tree. 
Secr. III. Psevposte’mma. Limb of calyx campanulate, 
sub-tubular, truncate, or somewhat 5-toothed. Corolla usually 
villous on the outside: having the tube shorter than the seg- 
ments of the limb. Stigma usually 2-lobed. Fruit unknown. 
Flowers disposed in panicles. Species natives of Brazil. Per- 
haps a proper genus. 
17 È otito (St. Hil. pl. usuel. bras. 1. t. 3. f. As) 
leaves ovate-lanceolate, cuspidate, nerved, villous beneath ; pa- 
nicle terminal; limb of calyx campanulately tubular, obscurely 
5-toothed, longer than the ovarium ; corolla villous on the out- 
side: with the segments longer than the tube ; filaments ee 
in the middle ; stigma bifid. h.S. Native of Brazil, in Ke s. 
Leaves 9-15 lines long. Corolla white, 2-4 lines long. ruit 
unknown. Itis called Quino do mato, and the bark is used as a 
substitute for Peruvian bark. 
Cuspidate-leaved Exostemma. Tree 8 to 10 feet. 
18 E. avsrra'te (St. Hil. pl. usuel. bras. 1. t. 3. f. B.) so 
ovate, nerved, rather villous beneath ; panicle terminal, sessile, 
tripartite ; limb of calyx campanulate, shorter than the aane 
bluntly 5-toothed ; corolla rather pubescent on the outside : 
with the segments longer than the tube; filaments wor 
stigma undivided. h.S. Native of Brazil, in woods. a 
12-15 inches long, and 7-8 broad. Style villous. The bar 
this and the preceding species is employed by the Brazilians F 
the cure of intermittent fevers, from the want of more efficaciou 
remedies. It is bitter and a little astringent. 
Southern Exostemma. ‘Tree 8 to 10 feet. 179.) 
19 E. rormo'sum (Cham. et Schlecht. in Linnea. 4. p. age 
leaves obovate-elliptic, acute at both ends, rather granular ae 
examined under a lens; panicle trichotomous, loosely er: ‘ek 
limb of calyx quite entire ; corolla glabrous on the outside, ee 
the throat is villous, and the segments are rather pilose a a 
inside, and a little longer than the tube ; stigma 2-lobed. h. > 
Native of Brazil, within the tropics. aie 
Var. a, leprosum (D. C. prod. 4. p. 361.) leaves large; 
of corolla shorter than the segments of the limb. 
Var. B, læve (D. C. 1. c.) leaves lanceolate ; 
longer than the segments of the limb. 
Showy Exostemma. Tree. 
20 E Souza'num (Mart. reis. ex Linnea. 5. p. 45.) ae 
obovate or ovate, acute, glabrous ; corymbs few ope a pri 
minal; capsules hardly an inch long, obovate, sue troad 
valves usually 4-nerved ; seeds transversely oblong, with a 
margin. h.S. Native of Brazil. 
Souza’s Exostemma. Tree. E 
21 E. macrocNE`MIA ; branches naked ; leaves penne 
late, acuminated, tapering into the short petioles, smoot 
1 
tube of corolla 
