ASCLEPIADE/E. LXXI. AsrEPHANUS. 
Masson’s Astephanus. Shrub. 
6 A. Cuse'nsis (H. B. et Kunth, nov. gen. amer. 3. p. 206. 
t. 237.) stems twining, glabrous, or beset with recurved pili; 
leaves lanceolate, alittle acuminated, glabrous, ciliated ; umbels 
many-flowered ; corollas bearded inside. h.%™.S. Native of 
Cuba, near Regla. Periploca parviflora, Willd. herb. P. Hum- 
boldtiàna, Schultes, syst. 6. p, 129. Leaves 12-14 lines long. 
Petioles 2 lines long, slender. Umbels furnished with many 
oblong-ovate bracteas, shorter than the leaves. Corolla 5- 
cleft, white; with an inflated globose tube; ovate, lanceolate 
segments, which are narrow linear at top, fleshy and connivent. 
Column short. Pollen masses clavate, yellow. Stigma conical. 
Perhaps a separate genus. 
Cuba Astephanus. Shrub tw. 
7 A. Berte’ru (Spreng. syst. 1. p. 855.) twining, glabrous; 
leaves cordate-oblong, acute; peduncles usually 1-flowered; 
corolla rotate, glabrous, 5-parted. h.%.S. Native of New 
Granada, Bertero. 
Bertero’s Astephanus. Shrub tw. 
Cult. For culture and propagation see Ceropégia, p. 112. 
LXXII. PENTASA'CME (from mevre, pente, five, and akun, 
akme, a point; in reference to the 5 scales in the throat of the 
corolla). Wall. ascl. no. 74. Wight et Arnott, contrib. ind. 
bot. p. 60. 
Lix. syst. — Pentándria, Digýnia. Corolla subrotate, 5- 
cleft; throat crowned by 5 scales, which alternate with the 
segments; estivation valvate. Stamineous corona wanting. 
Anthers free, simple, or acuminated at the apex. Pollen masses 
pendulous, fixed above their middle, with coarctate pellucid tips. 
Stigma mutic or apiculated.—Slender, erect, much-branched 
herbs. Leaves opposite, flat, membranous. Umbels almost 
sessile, few-flowered. Segments of corolla 2-3 times longer 
than the tube, narrow-linear. This genus is allied, in many 
points, with Zeptadénia, but is distinguished by the form of the 
oe by the pendulous pollen masses, and by the different 
abit. 
1 P. caupa`rum (Wall. ascl. no. 75. Wight and Arnott, 1. c.) 
leaves lanceolate, long-attenuated ; segments of corolla subu- 
late; scales in the throat largish, 4-cleft; anthers obtuse; 
stigma mutic. 2/. G. Native of Silhet, and the mountains of 
Lahore. 
Tailed-leaved Pentasacme. Pl. 
2 P. Warricnun (Wight, contrib. ind. bot. p. 60.) leaves lan- 
ceolate, acuminated ; umbels almost sessile, few-flowered ; seg- 
ments of corolla linear, obtuse; scales in the throat small, 
gland-formed ; anthers acuminated; stigma beaked. X. G. 
Native of Silhet. Wall. ascl. no. 74. unnamed. 
Wallich's Pentasacme. Pl. 
Cult. For culture and propagation see Calótropis, p. 147. 
LXXIII. HYBANTHERA (from foe, hybos, a curve, and 
av@nva, anthera, an anther; anthers gibbous on the back). 
Endlicher, prod. ins. norf. fl. p. 59, 
Lin. syst. Pentdndria, Diginia. Corolla rotate. Corona 
none. Anthers gibbous on the back, terminated by a mem- 
brane ; pollen masses pendulous, fixed by their tips. Stigma 
mutic. Follicles unknown.—A twining shrub, with opposite 
leaves and interpetiolar umbels of flowers. 
1 H. sietanputésa (Endl. l. c. Bauer. pl. ins. norf. t. 162.) 
h. %.G. Native of Norfolk Island. Leaves ovate-oblong, 
petiolate, cuspidately mucronate, 2 inches long, glabrous, shin- 
ing above and pale beneath. Umbels interpetiolar, racemose, 
4-8-flowered, a little longer than the petioles. Corollas pale 
green. 
LXXII. PrNTAsACME. 
LXXIII. Hv»saxrHERA. LXXIV. Secamone. 159 
Biglandular Hybanthera. Shrub tw. 
Cult. For culture and propagation see Pergulària, p. 133. 
Tribe IV. 
SECAMONE'`Æ (this tribe contains genera agreeing with 
Secamóne in several particular characters). Pollen masses 20, 
smooth, fixed by fours to the top of each of the corpuscles of 
the stigma, which are exsulcate. Filaments connate, appendi- 
culate outside. 
LXXIV. SECAMO'NE (Squamouna is the Arabic name of 
S. /Egypliaca). R. Br. in mem. wern. soc. l. p. 55.—Perí- 
ploca species of Lin. and others. 
Lin. syst.  Pentándria, Digynia. Corolla rotate. Stami- 
neous corona 5-leaved; leaflets laterally compressed, fixed 
lengthwise by their margins, averse, simple. Pollen masses erect. 
Stigma coarctate at top. Follicles smooth.—Erect or twining, 
glabrous shrubs. Leaves opposite. Cymes dichotomous, in- 
terpetiolar. Flowers minute.—Natives of Africa, the East 
Indies, and New Holland. From the extreme minuteness of 
the parts, no genus is more difficult to determine than this. 
* Species natives of the East Indies. 
1 S. eme’tica (R. Br. l.c. Schultes, syst. 6. p. 124. Wight 
and Arnott, contrib. ind. bot. p. 60.) twining, glabrous; leaves 
from elliptic to narrow-lanceolate ; cymes shorter than the 
leaves ; corolla glabrous ; leaflets of corona cultriform, nearly 
one half shorter than the gynostegium ; follicles slender, atte- 
nuated at the apex. L.^. S. Native of the East Indies, at 
the roots of mountains, among other bushes. Wall. ascl. no. 
102. Wight, cat. no. 1559.  Períploca emética, Retz, obs. 2. 
p. 14. Willd. phyt. 1. p. 6. t. 5. f. 2. Periploca cymósa, 
Roxb. Cynanchum vomitórum, Lam. 2. p. 235. ex Poir. ? 
ined. The other species mentioned by R. Br. l. c. is probably 
the Toxocdrpus: Roxbürghii. The roots of this plant are used 
in place of ipecacuanha. 
Emetic Secamone. Clt. 1816. Shrub tw. 
2 S. Fintaysonta‘na (Wight and Arnott, contrib. ind. bot. 
p. 61.) twining, glabrous; leaves oval, acuminated, almost ses- 
sile; cymes longer than the leaves, with flexuous branches ; 
corolla glabrous ; leaflets of corona about equal in length to the 
gynostegium. Y. ^. S. Native of the East Indies, where 
it was collected by Dr. Finlayson.— Wall. ascl. no. 103. un- 
named. 
Finlayson's Secamone. Shrub tw. 
3 S. maritima (Blum. bijdr. p. 1050.) flowers villous inside, 
disposed in dense cymes; leaves elliptic-oblong, acute at both 
ends, smoothish, veinless above; stem twining. b. ^. S. 
Native of the island of Nuse Kambanga, by the sea side. 
Sea side Secamone. Fl. Nov. Shrub tw. 
4 S. AvRICULATA (Blum. bijdr. p. 1051.) flowers glabrous, 
disposed in corymbose panicles ; leaves oval, acutish, obsoletely 
biauriculate at the base, veiny, glabrous; stem twining. h. ^. 
S. Native of Java, on the Salak mountains. 
Auricled-leaved Secamone. | Fl. Oct. Nov. Shrub tw. 
5 S. xixEA'1A (Blum. bijdr. p. 1051.) flowers glabrous, dis- 
posed in loose panicles; leaves elliptic-oblong, acuminated, 
rather emarginate at the base, glabrous, full of fine parallel 
veins; stem.twining. h. ^. S. Native of Java, in shady 
places, on mount Salak, where it is called Aroy kakawalan. 
Lined-leaved Secamone. Fl. June, Sept. Shrub tw. 
6 S. raxckora'rA (Blum. bijdr. p. 1051.) flowers glabrous, 
subcorymbose; leaves lanceolate, acuminated, finely veined, 
glabrous, shining; stem twining; branches nodose at the in- 
sertion of the leaves. h.™.S. Native of Java, in calcareous 
soil, frequent. 
