466 
teeth many, irregular, stiff. Corolla of the male flowers trifid, 
of the hermaphrodite one quadrifid. Stamens 3-4. Styles in the 
female flower 2. Fruit 3-horned. 
Trige XIII. 
Opercutarir’&. Fruit 1-celled, 1-seeded, joined together 
laterally into a head (f. 112. 6.), and at length opening by 2 
valves at the apex.—Herbs or subshrubs, with opposite leaves. 
Stipulas twin on each side, distinct or concrete. : 
219 Pomax. Limb of calyx wanting. Corolla 3-4-cleft. 
Stamens 1-4. Style short; stigmas 2, slender. Seeds wrinkled 
from tubercles. —Suffrutescent herbs. j 
220 OpERcULA`RIA. Limb of calyx 3-4-lobed. Corolla 3-4 
cleft. Stamens 1-5. Style short; stigmas 2, slender. Seeds 
nearly smooth.—Herbs suffruticose at the base (f. 112.). 
221 Lieo’stroma. Limb of calyx 4-parted. Corolla with a 
tubular base, a ventricose throat, and a 4-lobed limb ; tube hairy 
inside, bearded at the top. Stamens 4, inserted in the throat. 
Stigmas 2. Capsule globose, 2-celled, but usually only 1-celled 
from the rupturing of the dissepiment, many seeded, crowned by 
a deciduous operculum. 
+ Rubiaceous genera not sufficiently known. 
222 Psizo'pium. Limb of calyx spreading, 5-parted. Corolla 
with a short tube and a 5-parted limb. Stamens 5, fixed to the 
base of the corolla. Stigma clavate, 10-winged, exserted. 
Fruit cylindrical, silique-formed, crowned, 2-celled, many-seed- 
ed. Seeds fixed to the central axis, 2 series in each cell.— 
Shrubs. 
223 Pratyme'rium. Limb of calyx rotate, 5-parted, rarely 
4-parted. Corolla coriaceous, funnel-shaped, with a short tube, 
which is woolly inside, and a 5, rarely 4-parted limb, which is 
twisted in eestivation. Anthers sessile in the tube. Style cla- 
vate, spirally 10-ribbed. Ovarium 2-celled, crowned by an 
epigynous disk.—Shrub, very nearly allied to Psildbium. 
224 Sripuza‘ria. Calyx small, tubular, with a 5-toothed 
‘border. Corolla tubular, slender. Stamens 5? Heads of 
flowers axillary, nearly sessile, surrounded by a large calyciform 
5-toothed villous involucrum. 
225 Benzo‘nta. Limb of calyx small, 5-toothed. 
tubular, coriaceous, 5-cleft. 
throat. 
Corolla 
Anthers triquetrous, sessile in the 
Stigma ovate-globose, furrowed longitudinally. Fruit 
unknown.—A shrub, with corymbose flowers. 
226 Himata'ntuvus. Calyx with'a turbinate tube, and a 
loose permanent 5-parted unequal limb. Corolla funnel-shaped, 
having the tube much longer than the calyx, and a 5-cleft limb. 
Stamens 5, capillary, very short, inserted in the tube. Style 
clavate: stigma subulate. Ovarium 2-celled, 2-seeded.—A 
tree. Flowers spicate, sessile, involucrated by a large deciduous 
bractea before expansion. Perhaps belonging to Rubidcee. 
227 Sickr'ne1a. Calyx 5-toothed, permanent. Corolla cam- 
panulate, 5-toothed. Filaments inserted in the middle of the 
tube. Anthers exserted. Stigma 1. Capsule woody, 2-valved. 
Seeds winged.—A tree, with panicles of sweet-scented flowers. 
Perhaps belonging to Rubiacee. 
RUBIACE Æ. 
I. NaucLEaA. 
Tribe I. 
CINCHONA`CEÆ (this tribe contains plants agreeing with 
Cinchona in important characters). D. C. prod. 4. p. 343. 
Cinchonee, Rich. diss. p. 108. Fruit capsular, 2-celled ; cells 
many-seeded. Seeds winged. Albumen fleshy.—Trees or 
shrubs. Leaves opposite. Stipulas interpetiolar. 
SusTRIBE I. Navcree® (shrubs agreeing with the genus 
Naúclea in the globose flowers). D.C. prod. 4. p. 845. Flowers 
capitate, sessile upon a globose receptacle (f. 83. e. f. 84. k.) 
I. NAU'CLEA (from vave, naus, a ship, and kew, kleio, to 
inclose; in reference to the hull-shaped half capsule). Lin. 
gen. no. 223. Geertn. fruct. 1. p. 151. t. 30. Lam. ill. t. 153. 
Roxb. fl, ind. 2. p. 117. D. C. prod. 4. p. 343.—Naiiclea 
species, Juss. Kunth, Blume.—Cephalanthus species. Lin. ed. 1. 
Lam. Reich. : 
Lin. syst. Pentdndria, Monogynia. Calyx with an oblong 
tube (f. 83. a.), and a short, truncate, or 5-toothed limb (£. 83. 
b.); lobes linear. Corolla funnel-shaped (f. 83. c.), with a 
slender tube, a naked throat, and 5 spreading, oval-oblong lobes 
(f£. 83. c.). Anthers inclosed (f. 83. g.), or exserted, always 
shorter than the lobes of the corolla. Style filiform (f. 83. e.), 
exserted ; stigma oblong (f. 83. d.), or ovate, tumid, undivided. 
Capsules 2-celled (f. 83. h. i.), sessile upon the receptacle, not 
gradually attenuated to the base. Seeds numerous, imbricate, 
winged, fixed to oblong placentas, which are adnate to the dis- 
sepiment. Embryo inverted in a fleshy albumen.—Unarmed 
trees, rarely shrubs, natives of India and Africa. Leaves oppo- 
site, or 3-4 in a whorl, petiolate or sessile. Stipulas interpe- 
tiolar, deciduous. Peduncles terminal and axillary, each bearing 4 
globose head of flowers. Bracteas wanting at the base of the head 
of flowers, but with linear paleæ among the flowers. Hor 
crowded, sessile. This genus differs from Cephalánthus in the 
parts of the flowers being quinary, and in the cells of the ne 
sules being many-seeded ; and from Sarcocéphalus in the n 
being capsular, not baccate; and from Uncària m the capsules 
being sessile, not attenuated at the base. 
Secr. I. Navcrea‘rra (altered from Naúclea). Lobes of 
calyx short, acute, or wanting. 
§ 1. Capsules growing together in the head. 
1 N. unputa‘ra (Roxb. fl. ind. 2. p. 117.) arboreosii 
branches brachiate ; leaves petiolate, ovate-oblong, obtuse, pi 
dulated, shining; stipulas elliptic, obtuse, almost the ges 3 : 
petioles ; peduncles terminal, solitary ; capsules united. R- és 
Native of the Moluccas. Peduncles drooping, each beatin 
large globular head of numerous, small, most beautiful ye Ila 
fragrant flowers. Anthers seated in the 5 fissures of the corola, 
with hardly any filaments. 
Undulated-leaved Nauclea. 
20 feet. 
2 N. GLABE'RRIMA (Bartl. in herb. Heenke ex D.C. ager 
p. 344.) branches tetragonal; leaves ovate, glabrous, sale 
stipulas oval, length of petioles ; peduncles solitary, term! is 
capsules united. h.S. Native of the island of Luzon. Ji- 
species differs from N. undulata in the leaves not being uni 
lated or shining, in the petioles being 1 inch long, not 2 pe! 
The heads are referrible to the fruit of Platanus, but are smo 
Quite-glabrcus Nauclea. Tree 12 to 15 feet. 
3 N. Watuicuia'na (R. Br. in Wall. cat. 
quadrangular; leaves broad, roundish-elliptic, i 
ends, but sometimes cuneated at the base, glabrous : 
terminal, solitary ; stipulas elliptic, obtuse ; stamens exs 
Fl. May, June. Clt.1820. Tree 
6098.) branches 
obtuse at bot 
peduncles 
erted ; 
