RUBIACEÆ. CXVII. Hamiltonia. 
Corolla funnel-shaped, with a long straight tube (f. 102. b.), 
and 5 oblong lobes (f. 102. c.). Stamens 5, inserted in the 
throat of the corolla, inclosed. Stigma 5-cleft. Capsule crowned 
by the calyx, dehiscing at the apex, 1-celled, containing 5 tri- 
quetrous 1-seeded pyrene. Seeds inserted by the base, erect, 
covered by a dry reticulated membrane or epidermis. Albumen 
very sparing. Embryo erect, with an oblong radicle, and cor- 
date foliaceous cotyledons.—East Indian shrubs. Leaves lan- 
ceolate, on short petioles. Stipulas short, acute, broad and 
adpressed at the base. Flowers disposed in fascicles or umbels, 
sweet-scented.—This genus has been joined with Ancylénthus 
by Jussieu, but is sufficiently distinct from that genus. 
FIG, 102. 
1 H. suave‘otens (Roxb. 
hort. beng. p. 15. fl. ind. 2. p. 
223.) glabrous; leaves broad- 
lanceolate; heads of flowers 
densely umbellate, pedunculate, 
terminal; calyx beset with glan- 
dular hairs. =. S. Native of 
the East Indies, on the Rajmu- 
hal hills. Spermadictyon suavéo- 
lens, Roxb. cor. 3. p- 32. t. 236. 
R, Br. in bot. reg. t. 348. La- 
sianthus tubiflòrus, Blum. bijdr. 
p. 990. Leaves 3-6 inches 
long. Stipulas broad, ensiform. 
Flowers sessile, in terminal co- 
rymb-formed heads, on short 
trichotomous branchlets, numer- 
ous, pure white, delightfully fragrant. 
Sweet-scented Hamiltonia. F]. Oct. Clt. 1818. Sh. 4 to 6 ft. 
i 2 H. sca`‘sra (D. Don, prod. fl. nep. p. 187.) leaves ovate- 
anceolate, short-acuminated, scabrous on both surfaces, rounded 
at the base ; calycine segments linear, villous. h. S. Native 
of Nipaul, at Narainhetty, and between Hetounra and Bhem- 
pi chiefly between Bhinsadoban, and the last-mentioned vil- 
age, forming the most extensive thickets. Dr. Wallich has also 
met with it about the village near Cheesnagurree, and on several 
aam in the valley. Hamiltònia Dulina and Nonatèlia 
‚“amentòsa, Hamilt. mss. Hamilt. azùreum, Wall. in Roxb. fl. 
ie 2. p. 225. Spermadictyon azùreum, Lindl. bot. reg. 1235. 
lowers azure blue, perfuming the air by their delicious fra- 
grance from November until March, during which time they are 
es beautiful. Inflorescence ample, densely villous, especially 
z : corollas. The tender parts of the plant emit a fetid smell, 
ike those of Pedéria and Serissa. 
Scabrous Hamiltonia. Fl. Jan, Clt. 1823.2? Sh. 4to 6 ft. 
H. vidsa (Roxb. fl. ind. 2. p. 226.) shrub stiff, very 
pilose ; leaves lanceolate; fascicles of flowers axillary, inter- 
mixed with hairy bracteas. h.S. Native of the Moluccas. 
Pilose Hamiltonia. Shrub 4 to 6 feet. 
Cult. The species are desirable for every collection of stove 
pants, being free flowerers, very fragrant, and of easy culture. 
x = Succeed best in a mixture of loam and peat ; and cuttings 
vike root readily in sand, with a hand-glass over them, in a 
Moist heat, 
CXVIII. LEPTODE'RMIS (from Aerroc, leptos, slender, 
and Òspua, derma, the skin; the branches are covered with 
separating fibrous bark). Wall. in Roxb. fl. ind. 2. p. 191. 
- Rich, mem. soe. hist. nat. par. 5. p. 221. D.C. prod. 4. 
P: 462.—Hamiltdnia species, D. Don, prod. fl. nep. p- 137. 
Pe syst. Pentándria, Monogynia. Involucrum calyciform, 
al 2 leaves, closely girding the ovarium. Tube of calyx in- 
aren within the involucrum; limb of calyx short, permanent, 
“lobed ; lobes roundish, adpressed. Corolla funnel-shaped, 
CXVIII. Lerropermis. 
CXIX. Psarnura. 555 
scabrous from minute papille, with a terete tube, which is hairy 
inside, and 5 ovate cuspidate lobes which are involutely valvate 
in estivation. Stamens 5, with very short filaments and in- 
closed anthers. Ovarium 5-celled; cells 1-seeded. Style fili- 
form ; stigma quadrifid. Fruit oblong, 5-celled? 5-valved ? 
5-seeded.—Shrubs, with decussate, tetragonal branches. Leaves 
lanceolate or oblong, on short petioles, membranous.  Stipulas 
length of petioles, adpressed, permanent, acute. Flowers 
sessile, scentless, white.—Perhaps sufliciently distinct from Ha- 
miltonia. 
1 L. rancrora'ra (Wall. in Roxb. fl. ind. 2. p. 191.) leaves 
lanceolate, attenuated, acute, membranous, villous; flowers ses- 
sile by threes at the ends of the branches ; stipulas triangular, 
villous; branches quadrangular, downy while young. kh. G. 
Native of Nipaul, on the mountains, though it is among the less 
common plants. Hamiltonia fruticdsa, D. Don, prod. fl. nep. 
p. 137. Flowers white, scentless. According to the descrip- 
tion in fl. nep. the flowers are said to be hexamerous and hex- 
androus. 
Lanceolate-leaved Leptodermis. Shrub 3 to 4 feet. 
2 L. opto'nea (Bunge, in mem. acad. sc. Petersb. 2. p. 108.) 
leaves oblong, glabrous; flowers terminal, aggregate. h. G. 
Native of China, on the mountains. 
Oblong-leaved Leptodermis. Shrub. 
Cult. See Hamiltonia above for culture and propagation. 
CXIX. PSATHU'RA (from Waðvooc, psathuros, fragile or 
brittle ; the branches are brittle). Comm. in Juss. gen. p. 206. 
mem. mus. 6. p. 396. Lam. ill. t. 260. Geertn. fil. carp. 3. 
p- 82. t. 194, f. 4. A. Rich, mem. soc. hist. nat. par. 5. p. 214. 
D. C. prod. 4. p. 462.—Chicoinz‘a, Comm.—Psatira, Poir. 
dict. 6. p. 587.—Psathyra, Spreng. syst. 2. p. 127. but not of 
Fries. 
Lin. syst. Penta-Hexdndria, Monogynia. Calyx with an 
ovate tube, and a campanulate 5-6-toothed permanent limb. 
Corolla bearded inside, with a short tube, and a 5-6-lobed 
spreading limb; lobes acute, rather longer than the tube, valvate 
in estivation. Anthers 5-6, almost sessile at the throat. Stigmas 
5-6-lamellate. Berry globose, furrowed, crowned by the limb 
of the calyx, containing 4-6 1-seeded pyrene. Seeds erect. 
Albumen fleshy. Embryo erect.—Small glabrous trees, with 
knotted fragile branches. Leaves lanceolate, acute at both ends, 
petiolate, smooth. Stipulas ovate, caducous, with an elevated 
zone, which is joined to the petioles. Peduncles rising from 
the axils of the upper leaves, loosely panicled, shorter than the 
leaves. 
1 P. Borzéntca (Gmel. syst. 1. p. 577.) leaves oblong-lan- 
ceolate ; peduncles 7-8-flowered. h.S. Native of the Island 
of Bourbon, on the mountains, where it is called Bois cassant. 
P. corymbosa, Geertn. fil. carp. 3. p. 82. P. Borbénica, Roxb. 
fl. ind. 2. p. 158. Flowers minute, pentandrous, disposed in 
axillary and terminal trichotomous corymbs, Stigma 2-lobed. 
Drupe containing 5 pyrene. 
Bourbon Psathura. Tree small. 
2 P. myrrirorsa (A. Rich, diss. 1. c.) leaves oblong, bluntish; 
peduncles usually 3-flowered, lateral flowers sterile and decidu- 
ous ; limb of.calyx 5-parted ; lobes lanceolate. h.S. Native of 
the Mauritius. Perhaps sufficiently distinct from the pre- 
ceding. 
Myrtle-leaved Psathura. Tree small. 
3 P. rernirtora (A. Rich, diss. l. c.) leaves elliptic-lanceo- 
late, acute ; peduncles at the tops of the branchlets, usually by 
threes, 1-flowered ; limb of calyx wide, obsoletely 5-7-toothed. 
h.S. Native of the Mauritius. 
Three-flowered Psathura. Tree small. 
Cult. For culture and propagation see Hamiltonia above. 
4B 2 
