APOCYNE/E. XL. CERBERA. 
15 A. opora‘ra (Wall. cat. no. 1606.) peduncles axillary, 
3-flowered; leaves opposite, or 3 in a whorl, obovate-elliptic, 
tapering much to the base. h. S. Native of Chapedong. 
Sweet-scented Alyxia. Shrub. 
16 A. crAUcE'scENs (Wall. cat. no. 1607.) leaves opposite, 
oblong, coriaceous, shining above, glaucous beneath ; corymbs 
axillary, many-flowered; throat of corolla crowned. R.S. 
Native of the Straits of Malacca. 
Glaucescent Alyxia. Shrub. 
Cult. For culture and propagation see Taberncemontàna, p. 92. 
XL. CE’RBERA (so named from Cerberus, on account of its 
poisonous qualities). Lin. gen. no. 294. Juss. 149. H. B. et 
Kunth, nov. gen. amer. 3. p. 228. Blum. bijdr. p. 1031.— 
Ahoüai, Tourn. inst. 434. Jacq. amer. 48.  Thevétia, Juss. 
in ann. mus. 15. p. 346. 
Lin. syst.  Pentándria, Monogynia. Calyx 5-parted; seg- 
ments permanent. Corolla funnel-shaped ; tube pilose inside 
at top; throat 5-toothed: teeth opposite the anthers; limb 5- 
cleft ; segments oblique, or unequal-sided. Anthers seated on the 
top of the tube, almost sessile, inclosed, ovate, adhering to the 
stigma. Ovarium didymous, girded by 5 hypogynous scales or 
glands. Style filiform, didymous; stigma discoid: having the 
margin crenulated below, but convex and emarginate above. 
Drupes twin, one of them usually abortive, containing a fibry 
semi-bivalved, 1-celled putamen; cells divided into two divi- 
sions by the moveable dissepiment. Seeds usually solitary.— 
Lactescent trees or shrubs. Leaves scattered, quite entire. 
Peduncles extra-axillary at the tops of the branches. Flowers 
showy yellow or white. 
1 C. Tueve`ria (Jacq. amer. 48. t. 34. ed. pict. t. 47.) leaves 
linear, with sub-revolute edges, almost veinless, glabrous; pe- 
duncles generally 1-flowered ; calycine segments ovate, lanceo- 
late, acute, 3 times shorter than the tube of the corolla. R. S. 
Native of New Granada, in hot places; Mexico, Cuba, Marti- 
nico, &c. Lin. spec. 303. Lam, ill. t. 170. f. 2. Hook. bot. 
mag. 2309.— Plum. icon. t. 18.—Pluk. alm. p. 253. t. 207. f. 3. 
—Hern. mex. 443. f. 3.  Axils of leaves furnished with some 
subulate scales. Corollas yellow. Drupe half orbicular, trun- 
cate at top, 2-celled, size of a bean; cells bipartite. 
Thevet’s Cerbera. FI. June, July. Clt. 1785. Tree 12 ft. 
2 C. tHeveTioipes (H. B. et Kunth, nov. gen. amer. 3. p. 
223.) leaves lanceolate-linear, acute, veiny, glabrous, with re- 
volute edges: nerves and veins pilose beneath ; flowers crowded 
at the tops of the branches, on short peduncles, sometimes 2 
on a single peduncle; calycine segments oblong-lanceolate, 
acutish, 3 times shorter than the tube of the corolla. h. S. 
Native of New Spain, in temperate places, near the town of 
Tasco. Leaves 4$ inches long. Segments of corolla dimidiately 
obovate. Drupe globose, size of an apple. Corollas yellow. 
Thevetia-like Cerbera. Fl. April, July. Clt. 1800. Tree 12 ft. 
3 C. Pervvia'na (Pers. ench. 1. p. 267.) leaves linear-lan- 
ceolate, crowded, glabrous; peduncles short, few-flowered. 
h. S. Nativeof Peru, in woods. C. Thevétia, Ruiz et Pav. 
fl. per. 2. p. 27. t. 153. f. b. C. Thevétia f, Poir. suppl. 1. 
p. 261.? According to Cav. descr. p. 108. this differs from 
Thevetia in the ovarium being tetragonal, not round, in the 
peduncles being few-flowered, not 1-flowered. Corollas yellow, 
with wedge-shaped, oblique, truncate segments, and a villous 
throat: having 5 subulate teeth, closing the tube. 
Peruvian Cerbera. ‘Tree 12 feet. 
4 C. Auov'ar (Lin. spec. 1. p. 303.) leaves ovate, acute, 
glabrous; peduncles terminal, short, 6-7-flowered ; calycine seg- 
ments reflexed ; segments of corolla undulated. h. S. Na- 
tive of Brazil. Curt. bot. mag. 737. Andr. rep. 231. Lam. 
ill. 2. p. 193. t. 170. f£. 1. C. Thevétia, Lin. hort. cliff. p. 75. 
VOL. IV. 
97 
Ahouai, Thev. antarct. p. 66.  Corollas pale yellow. The 
wood is very fetid; and the fruit is a deadly poison. The 
Indians are said to put small stones into the empty nuts, string 
them, and fasten them about their legs when they dance. 
Ahouai Cerbera. Fl. June, July. Clt. 1739. Tree 10 to 
20 feet. 
5 C. ova`ra (Cav. icon. 3. p. 35. t. 270.) leaves oblong- 
ovate, green above, rather downy beneath, and yellowish ; flowers 
terminal, usually 5 together; calycine segments ovate, acute, 
reflexed ; segments of corolla arched. h. S. Native of New 
Spain. Corolla yellow. Fruit nearly globose, size of a walnut, 
compressed, bluntly truncate. 
Ovate-leaved Cerbera. Shrub 8 to 6 feet. 
6 C. cunerrouia (H. B. et Kunth, nov. gen. amer. 3. p. 224.) 
leaves oblong-cuneated, rounded at the apex, puberulous above 
and downy beneath ; peduncles sub-dichotomous, few-flowered ; 
calycine segments oblong, acute, hardly shorter than the tube of 
the corolla; segments of corolla dimidiately obovate. h. G. 
Native of Mexico, on the western declivities of the mountains, 
between Zumpango and Mescalo. Leaves 3 inches long, and 
an inch broad at top, with some scales in their axils. Peduncles 
hairy. Corollas yellow ? 
Wedge-leaved Cerbera, Fl. April. Tree. 
7 C. xírrpA (H. B. et Kunth, nov. gen. amer. 3. p. 225.) 
leaves oblong-lanceolate, acuminated, with subrevolute edges, 
glabrous and shining above, but hairy beneath; flowers race- 
mose; calycine segments ovate. acuminated, 4 times shorter 
than the tube of the corolla; segments of corolla rounded. 
h. S. Native of New Granada, at the mouth of the river 
Sinu, and near Turbaco. Leaves 8-10 inches long. Corollas 
white, about the size of those of Vinca rósea; limb downy 
outside. Ovaria girded by 5 combined glands. Drupes com- 
bined, fleshy, 2-lobed, 4-celled? cells 1-seeded. 
Shining Cerbera. Fl. March. Shrub. 
+ Doubtful species. 
8 C. ALLtoDóRA (Willd. mss. ex Roem. et Schultes, syst. 4. 
p. 798.) leaves roundish, obtuse, roughish. k. S. Native of 
South America. Humb. et Bonpl. 
Garlic-scented Cerbera. Shrub or tree. 
9 C. osova'rA (Willd. l. c.) leaves elliptic-obovate, tapering 
into the petioles, glabrous, parallelly veined beneath. h. S. 
Native of? 
Obovate-leaved Cerbera. Shrub or tree. 
Cult. For culture and propagation see Tabernemontana, p. 92. 
XLI. Taneuinia. 
XLI. TANGHI'NIA (Tanghen or Tanghin is the Mada- 
gascar name of T. venenéflua, the juice of which is the ordeal 
water of that island). Pet. Th. gen. med. p. 10. Poir. suppl. 5. 
p. 283. Bojer. in Hook. bot. misc. 3. p. 290. t. 110.— Cérbera 
species of authors.  Cynóctonum, Gmel. syst. veg. 1. p. 443. 
Lin. syst. — Pentándria, Monogynia, Calyx 5-cleft; seg- 
ments spreading, deciduous. Corolla salver-shaped, longer 
than the calyx; with a pentagonal, dilated throat; limb spread- 
ing; Segments unequal-sided. Stamens 5, inserted into the 
dilated part of the tube of the corolla; anthers thick, heart- 
shaped, hidden by as many foliaceous acuminated inflexed la- 
mella or scales, which rise from the throat : having an umbilical 
tubercle under each anther. Ovarium solitary, 4-lobed, girded 
by a hypogynous ring. Stigma capitate, 2-lobed, inclosed in the 
dome formed by the anthers. Drupe ovate, containing a fibry 
nut, which is acute at both ends. Integument of seed mem- 
branous. Albumen none, ex Pet. Th.; concatenated, horny, ex 
Bojer. Cotyledons flat, slender, somewhat cordate, ex Bojer ; 
thick, concave, ex Pet. Th. Embryo superior, inverted.—Gla- 
prona trep: with the habit of Mango. Leaves alternate, approxi- 
