162 
2 S. Krriwu (Wight, and Arnott, l. c. p. 65.) branches 
downy; leaves almost sessile, cuneate-oblong or obovate, mu- 
cronate, cordate at the base, rather hispid above, but clothed 
with soft, white tomentum beneath ; cymes diffuse, shorter than 
the leaves; calyxes and pedicels densely downy. kh. ^. S. 
Native of the Peninsula of India, but the locality is not men- 
tioned. Wight. cat. 1564. Wall. ascl no. 157, unnamed. 
Klein’s Streptocaulon. Shrub twining. 
3 S. Wasticuu (Wight, l. c.) branches pubescent; leaves el- 
liptic, attenuated at the base and apex, cuspidate, clothed with 
soft down above, and fuscous, velvety down beneath; cymes 
diffuse and branched, many-flowered, longer than the leaves: 
having the ultimate branches raceme-formed ; pedicels filiform, 
and are, as well as the calyxes, glabrous, ^.^. S. Native of 
Penang and Singapore.— Wall. ascl. no. 124, unnamed. 
Wallich’s Streptocaulon. Shrub twining. 
4 S. exre’nsum (Wight, l. c.) glabrous; leaves oval, acumi- 
nated; cymes panicle-formed, much longer than the leaves ; 
flowers scattered, pedicellate ; pedicels filiform, glabrous. h. 
. S. Native of Rangoon and Tavoy. Periploca exténsa, 
Wall. ascl. no. 128. 
Extended Streptocaulon. Shrub twining. 
5 S.sytve’stre (Wight, l. c.) procumbent, or twining a little ; 
stems rather villous; leaves almost sessile, roundish-ovate, cus- 
pidate, cordate at the base, rather velvety on both surfaces, but 
most so beneath ; cymes few-flowered, shorter than the leaves ; 
pedicels and calyxes pubescent. h.%.S. Native of the East 
Indies, at Sanastrygota. Periploca? sylvéstris, Ham, herb. no. 
763. Wall. ascl. no. 140. 
Wild Streptocaulon. Shrub twining. 
6 S. carornv'LLuM (Wight, l. c.) glabrous; leaves narrow- 
lanceolate, long attenuated, transversely-veined, with sub-undu- 
lated edges; cymes almost sessile, few-flowered; flowers on 
short pedicels ; follicles slender, apiculated, about 6 inches long. 
.^. S. Native of Nipaul.  Períploca? Wall. asclep. no. 
123. This plant differs in habit from the other species, but the 
structure of the flowers is quite the same. 
Beautiful-leaved Streptocaulon. Shrub twining. 
+ Species not sufficiently known. 
7 S. Mauritia‘num; glabrous; leaves ovate, long-acumi- 
nated, transversely veined, on short petioles ; racemes axillary, 
composed of short divaricate branches; pedicels furnished with 
short, obtuse scales at the base; follicles sub-articulated, sub- 
ulate. h.^.S. Native of the Mauritius; and of the East 
Indies. Periploca Mauritiana, Poir. encyc. 5. p. 188.—Cynán- 
chum Mauritiànum, Lam. dict. 2. p. 236.—Funis papius, Rumph. 
amb. 5. p. 14. t. 10, and perhaps t. 11. Leaves like those of 
P. Greca; but the flowers are much smaller, and disposed in 
short racemes. 
Mauritian Streptocaulon. Shrub twining. 
8 S. A'LBrcANs ; glabrous; leaves ovate, sub-acuminated, 
small, on short petioles; cymes few-flowered; stems corky, 
white; tube of corolla hardly the length of the calycine teeth ; 
segments oblong, nearly subulate, acute. b.^.S$. Native of 
the East Indies. Periploca albicans, Poir. encyc. 5. p. 191. 
Leaves myrtle-formed. Flowers small, cream-coloured, nearly 
sessile, on the branches of the common peduncle. 
Whitish Streptocaulon. Shrub twining. 
9 S. parvirLéruM; glabrous: leaves small, ovate, obtuse, 
mucronate ; flowers small, twin or tern, almost sessile, on the 
tops of short, axillary peduncles; stems filiform, very tough. 
5. ^. S. Native of the East Indies. Periploca parviflora, 
Poir. encycl. suppl. 5. p. 192. Leaves approximate. Flowers 
whitish. 
Small-flowered Streptocaulon. Shrub twining. 
12 
ASCLEPIADEZ. LXXIX. Srreprocauton. 
LXXX. Decareris. LXXXI. FINLAYSONIA. 
10 S. virca‘rum; glabrous ; leaves lanceolate, obtuse ; stems 
twiggy, furnished with many lateral branches, which bear the 
flowers along their tops, in small fascicles, disposed in the man- 
ner of a spike; flowers small. h.™.S. Native of the East 
Indies. — Períploca virgata, Poir. suppl. 5. p. 192. Leaves 
small. Flowers white. 
Twiggy Streptocaulon. Shrub twining. 
11 S.? Cocuincutne'nsis ; arboreous ; leaves fleshy, cordate- 
oblong, large, glabrous; racemes short, terminal. h.G,. Na- 
tive of Cochinchina. Periploca Cochinchinénsis, Lour. coch. 
167. Wood flaccid. Branches spreading. Flowers pale blue. 
Segments of calyx lanceolate, expanded. Nectary girding the 
genitals, of 5 erect, filiform leaflets, which are curved at the base. 
Follicles 2, oblong. Seeds numerous. roundish. 
Cochinchina Streptocaulon. Tree. 
12 S.? Cuine’nsis; twining; leaves ovate-oblong, obtuse, 
glabrous; peduncles many-flowered ; segments of corollaglabrous, 
linear, elongated, twisted. h.^. G. Native of China. Pergu- 
laria Sinénsis, Lour. coch. p. 169.  Períploca Chinénsis, Spreng. 
syst. l. p. 836. Corolla yellow. Corona of 5 arrow-shaped 
stipitate leaflets ; stigma conical, 5-furrowed ; follicles oblong ; 
seeds naked. 
China Streptocaulon. Shrub twining, 
13 S. DIVARICA`TA ; shrubby, erect; branches short; leaves 
oblong-lanceolate, undulated ; peduncles terminal, 2-flowered, 
divaricate ; segments of corolla subulate, elongated. h. G. 
Native of China. Pergularia divaricàta, Lour. coch. p. 169. 
Periploca divaricàta, Spreng. syst. 1. p. 836. Flowers yellow, 
suffused with red. Corolla somewhat salver-shaped ; furnished 
with 5 arrow-shaped scales at the mouth of the tube. — Follicles 
oblong; seeds naked. 
Divaricate-panicled Streptocaulon. Shrub. 
Cult. For culture and propagation see Pergulària, p. 133. 
LXXX. DECA'LEPIS (from ca, deka, ten; and eriç, 
lepis, a scale; there are 10 scales, 5 in the throat, and 5 in the 
tube of the corolla.) Wight, and Arnott, contrib. ind. bot. p. 64. 
Lin. syst. — Pentándria, Digiynia. Corolla sub-rotate, 5- 
parted; throat crowned by 5 oblong-oval, flat, mutic scales, 
alternating with the segments; tube furnished with 5 linear- 
obtuse scales, opposite the segments. Filaments distinct, in- 
serted in the upper part of the throat, along with the 5 upper 
scales, and cohering with them to the middle. Anthers glued 
by the base to the margin of the stigma, distinct at top, beard- 
less, terminated by a sub-dilated appendage. Pollen masses 
granular, solitary (probably composed of 4 confluent ones), ap- 
plied to the dilated, loose appendage of each corpuscle. Stigma 
mutic.—A twining,? smoothish shrub. Leaves opposite, oval, 
bluntly acuminated. Cymes small, on longish peduncles, and 
shorter than the leaves, composed of raceme-formed branches. 
Flowers small. Limb of corolla villous inside. 
1 D. Hamittonir (Wight, and Arnott, l. c) kh. ^.? S. 
Native of the East Indies, but the locality is unknown. Wight, 
cat. no. 1566. Streptocaülon Hamiltónii, Wight, mss. Apó- 
cynum, reticulàtum, Herb. madr. Wall. ascl. no. 139. This 
plant belongs to the Madras herbarium, and not to Hamilton's, 
as Dr. Wight supposed, when he suggested the specific name. 
Hamilton's Decalepis. Shrub twining. ? 
Cult. For culture and propagation see Pergularia, p. 133. 
LXXXI. FINLAYSO'NIA (named in memory of the late 
Dr. Finlayson, a surgeon in the service of the East India Com- 
pany; who made many collections of objects of natural history 
during his residence in the East Indies.) Wall. pl. rar. asiat. 2. 
p. 48.t.162. Wight, and Arnott, contrib. ind. bot. p. 65. 
Lin. syst. — Pentándria, Digynia. Corolla rotate; throat 
