144 ASCLEPIADEZE. XLIV. Gomrnocarrus. XLV. 
long. Peduncles and pedicels villous. Flowers green. Fol- 
licles bristly. 
Bristly Gomphocarpus. Shrub. 
4 G. crisrus (R. Br. l. c.) branches downy ; leaves lanceo- 
late-cordate, undulated, hispid. h. G. Native of the Cape 
of Good Hope.  Asclépias crispa, Lin. suppl. 170. mant. 215. 
Thunb. prod. 1. p. 47. fl. cap. 2. p. 154,—Commel. rar. t. 17. 
—Pluk. phyt. t. 139. f. 1—Mor. hist. sect. 15. t. 3. f. 37. 
Peduncles and calyxes pilose. Flowers greenish yellow. Lam. 
Umbels solitary, terminal, pedunculate, purple, ex Lin. 
Curled-leaved Gomphocarpus. Fl. July. Clt. 1714. 
1 to 2 feet. 
5 G. AwcusTIFÜLIUs (Link, enum. 1. p. 251.) stem erect, 
downy ; leaves linear-lanceolate, flat, glabrous. h. G. Na- 
tive of Mexico. Asclépias angustifolia, Willd. enum. 13. 
Schultes, syst. 6. p. 70. Asclépias linearis, Hort. Leaves 2 
inches long. Umbels dense, terminal, or nearly so. Corolla 
small, flesh-coloured or white. 
Narrow-leaved Gomphocarpus. 
Shrub 2 to 3 feet. $ 
Cult. These are very elegant shrubs when in blossom. 
They are of easy culture, growing most freely in a light soil ; 
and are increased by seed, which ripen in abundance. 
Shrub 
Fl. July, Aug. Clt. 1817. 
XLV. OTA'RIA (from ovc wroc, ous otos, an ear ; the leaves 
of the corona are biauriculate at the base). Kunth, nov. gen. 
amer. 3. p. 149.—Asclépias auriculàta, H. B. et Kunth, jose: 
Lin. syst. — Pentándria, Digýniæ. Calyx 5-parted. Co- 
rolla 5-parted, reflexed. Corona 5-leaved, seated on the upper 
part of the tube of the filaments ; leaflets cucullate, each run- 
ning from the bottom into a horn-formed process, biauriculate 
on the inside at the base. Anthers terminated by a membrane ; 
pollen masses compressed, fixed by the tapering apices, pen- 
dulous. Stigma concave, mutic.—<An erect, herbaceous plant. 
Leaves opposite, petiolate, reticulately veined, membranous. 
Umbels interpetiolar. Flowers greenish yellow. 
1 O. aumicuLA TA. 2. G. Native of Mexico, near Ario, 
in groves. Asclépias auriculàta, H. B. et Kunth, nov. gen. 
amer. 3. p. 149. t. 228. Branches terete, downy. Leaves 
oblong, acute, rounded at the base, flat, membranous, glabrous. 
Umbels involucrated by many downy bracteas. Style pilose 
at top. 
Auricled Otaria. Pl. 3 to 4 feet. 
Cult. For culture and propagation see Gomphocárpus, above. 
XLVI. OXYSTE’LMA (from o£vc, oxys, sharp, and oreApa, 
stelma, a crown; in reference to the foliola of corona being 
acute). R. Br. in wern. mem. 1. p. 40. prod. fl. nov. holl. 
p. 462.— Períploca species, Roxb. 
Lin. syst. Pentdndria, Digynia. Corolla rotate, spreading. 
Column exserted. Stamineous corona 5-leaved ; leaflets acute, 
undivided. Anthers terminated by a membrane. Pollen mas- 
ses compressed, fixed by their attenuated apices, pendulous. 
Stigma mutic. Follicles smooth. Seeds comose.—Suffruticose, 
twining, glabrous shrubs. Leaves opposite. Racemes or um- 
bels inter petiolar. 
1 O. xscurENTUM (R. Br. l. c.) leaves linear-lanceolate, 
veiny, smooth ; racemes longer than the leaves; corolla fringed 
with hairs ; follicles oblong, acuminated. %. ^. S. Native 
of the East Indies, in hedges, and amongst bushes on the banks 
of water courses. Periploca esculénta, Lin. suppl. 168. Roxb. 
cor. l. p. 13. t. 11. Asclépias rósea, Roxb. fl. ind. 2. p. 40. 
—Pluk. alm. 19. t. 359. f. 6. Root composed of filiform 
fibres. Leaves deciduous during the dry season, 4-6 inches 
long. Flowers large, beautiful white, with a tinge of rose 
colour. Roxburgh does not find that the natives ever eat any 
Oraria. XLVI. Oxysterma. XLVII, Ienrisia. 
part of this plant; but cattle, however, eat it. It is the 
Dooghdika of the Sanscrit, see Jones, asiat. res. 4. p. 268. 
` Esculent Oxystelma. Clt. 1816. Shrub tw. 
2 O. Warrican (Wight, contrib. ind. bot. p. 54.) leaves 
narrow, linear-lanceolate ; margins of corolla ciliated ; follicles 
short, oval, obtuse. b. ^. S. Native of the East Indies, on 
the banks of the Ganges and Irawaddi; and of the province of 
Tanjore, near Pathacottah. This is very nearly allied to O. 
esculéntum, only differing in the sharper and shorter follicles. 
Wallich’s Oxystelma. Shrub tw. 
3 O. carnosum (R. Br. prod. 462.) leaves fleshy, suboval, 
mucronate, glabrous; fascicles of flowers umbel-formed, pe- 
dunculate ; segments of corolla linear. kh. ^. S. Native of 
New Holland, within the tropic. This species differs consider- 
ably from the rest, both in the form of the corolla, and in that 
of its corona. 
Fleshy-leaved Oxystelma. Shrub tw. 
4 O. Zirezrià'wuM (Blum. bijdr. p. 1053.) leaves narrow- 
linear-lanceolate, cuspidate, smoothish ; peduncles 2-3-flowered 
at the apex; corolla having the base and margin bearded. 
5.^. S. Native of Java, about Batavia, collected in the gar- 
dens of Zippeli. 
Zippeli’s Oxystelma. | Fl. Oct. Shrub tw. 
5 O. HoorzniA'suM (Blum. bijdr. p. 1053.) leaves cordate, 
acuminated, smoothish; fascicles many-flowered ; corolla gla- 
brous. h.%.S. Native of Java, about Kuripan, in the garden 
of James Hooper ; and at the foot of Mount Salak, where it 
is called Aroy tjapu tuhur. 
Hooper's Oxystelma. Fl. year. Shrub tw. 
6 O. BonwovE'wsE (R. Br. in append. to Clapp. and Denh. 
trav. p. 34.) flowers racemose ; segments of corolla semi-ovate; 
follicles inflated ; leaves lanceolate, cordate at base. h.%™. G. 
Native of north Africa, in Bornou. This species differs from 
O. esculénta in the inflated follicles, and in the leaves being 
cordate at the base. 
Bornou Oxystelma. Pl. tw. 
Cult. For culture and propagation see Oxypétalum, p. 148. 
XLVII. IPHI'SIA (meaning unknown to us). 
Arnott, contrib, ind. bot. p. 52. 
Lin. syst. Pentándria, Dygynia. Corolla rotate, 5-cleft. 
Stamineous corona 5-leaved ; leaflets fleshy, suddenly narrowed 
to the apex. Anthers terminated by a membrane; pollen mas- 
ses ventricose, fixed by their tops to the extremities of ascend- 
ing, filiform appendiculi, or retinacula, pendulous. Stigma 
mutic.  Follicles smooth, attenuated at the apex, glabrous. 
Seeds comose.—Erectish or twining herbs or subshrubs. Leaves 
opposite. Flowers small. Umbels interpetiolar, simple, ag- 
gregate, or almost sessile at the bends of the peduncles. This 
genus is very nearly related to T'ylóphora, both in habit and 
structure of the flowers, butis separated on account of the truly 
pendulous pollen masses. 
1 I. murTIFLÓRA (Wight and Arnott, l. c.) suffruticose, twin- 
ing, glabrous; leaves oval, cuspidately-acuminated, petiolate ; 
umbels sessile at the flexures of the common peduncle, disposed 
alternately ; segments of corolla short; retinacula or appendi- 
culi elongated, bent upwards at the base and downwards at the 
apex. b.^. G. Native of the Neelghery mountains. 
Many-flowered Yphisia. Shrub tw. 
2 I. Govan (Wight, contrib. ind. bot. p. 52.) erectish ; 
leaves almost sessile from broad, oval, acuminated, to lanceolate 
acute; umbels simple, aggregate, few-flowered; pedicels as 
long as the peduncles ; segments of corolla lanceolate, glabrous 
inside and hairy outside; retinacula or appendiculi short, at first 
erectish. b. G. Native of the Himalaiah. 
Wight and 
