ASCLEPIADE.E. LXXI. ASTEPHANUS. LXXII. PENTASACME. LXXIII. HXBANTHERA. LXXIV. SECAMONB. 159 



Motions Astephanus. Shrub. 



6 A. CVBE'NSIS (H. B. et Kunth, nov. gen. amer. 3. p. 206. 

 t. 237.) stems twining, glabrous, or beset with recurved pili ; 

 leaves lanceolate, a little acuminated, glabrous, ciliated : umbels 

 many-flowered ; corollas bearded inside. fj . . S. Native of 

 Cuba, near Regla. Periploca parviflora, Willd. herb. P. Hum- 

 boldtiana, 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'RII (Spreng. syst. 1. p. 855.) twining, glabrous; 

 leaves cordate-oblong, acute; peduncles usually 1-flowered; 

 corolla rotate, glabrous, 5-parted. fj . ^. S. Native of New 

 Granada, Bertero. 



Bertcro's Astephanus. Shrub tw. 



Cult. For culture and propagation see Ceropegia, p. 112. 



LXXII. PENTASA'CME (from irtyrf, penle, five, and 

 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. 



LIN. SYST. Pentdndria, Digynia. Corolla subrotate, 5- 

 clett ; throat crowned by 5 scales, which alternate with the 

 segments ; aestivation 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 Leptadenia, but is distinguished by the form of the 

 corolla, by the pendulous pollen masses, and by the different 

 habit. 



1 P. CAUDA'TUM (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. I/ . G. Native of Silhet, and the mountains of 

 Lahore. 



Ti7f-leaved Pentasacme. PI. 



2 P. WALLICHII (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. 1. G. 

 Native of Silhet. Wall. ascl. no. 74. unnamed. 



Wallich's Pentasacme. PI. 



Cult. For culture and propagation see Calotropis, p. 147. 



LXXIII. HYBANTHE'RA (from t/3oc, hybos, a curve, and 

 a>6rjpa, anthera, an anther; anthers gibbous on the back). 

 Endlicher, prod. ins. norf. fl. p. 59. 



Lis. SYST. Penlandria, Digynia. 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. BiGLASDTjLosA (Endl. 1. c. Bauer, pi. ins. norf. 1. 162.) 

 fj . ^. G. Native of Norfolk Island. Leaves ovate-oblong, 

 petiolate, cuspidately mucronate, 2 inches Ions:, glabrous, shin- 

 ing above and pale beneath. Umbels interpetiolar, racemose, 

 4-8-flowered, a little longer than the petioles. Corollas pale 

 green. 



Biglandular Hybanthera. Shrub tw. 



Cult. For culture and propagation see Pergularia, p. 1 33. 



Tribe IV. 



SECAMONEMi (this tribe contains genera agreeing with 

 Secambne 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. jEgyptiaca). R. Br. in mem. wern. soc. 1. p. 55. Peri- 

 ploca species of Lin. and others. 



Liu. SYST. Pentdndria, 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. 1. 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. Jj . ^\ S. Native of the East Indies, at 

 the roots of mountains, among other bushes. Wall. ascl. no. 

 102. Wight, cat.no. 1559. Periploca emetica, Retz, obs. 2. 

 p. 14. Willd. phyt. 1. p. 6. t. 5. f. 2. Periploca cymosa, 

 Roxb. Cynanchum vomitorum, Lam. 2. p. 235. ex Poir. ? 

 ined. The other species mentioned by R. Br. 1. c. is probably 

 the Toj-ocar/HM Roxburghii. The roots of this plant are used 

 in place of ipecacuanha. 



Emetic Secamone. Clt. 1816. Shrub tw. 



2 S. FINLAYSOMA V NA (Wight and Amott, 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. It. <0> . S. Native of the East Indies, where 

 it was collected by Dr. Finlayson. Wall. ascl. no. 103. un- 

 named. 



Finlay -son's Secamone. Shrub tw. 



3 S. MARI'TIMA (Blum, bijdr. p. 1050.) flowers villous inside, 

 disposed in dense cymes ; leaves elliptic-oblong, acute at both 

 ends, smoothish, veinless above ; stem twining. \j . *"*. S. 

 Native of the island of Nusae Kambanga, by the sea side. 



Sea side Secamone. Fl. Nov. Shrub tw. 



4 S. AURICCLA'TA (Blum, bijdr. p. 1051.) flowers glabrous, 

 disposed in corymbose panicles ; leaves oval, acutish, obsoletely 

 biauriculate at the base, veiny, glabrous ; stem twining, fj . **\ 

 S. Native of Java, on the Salak mountains. 



^i/ricferf-leaved Secamone. Fl. Oct. Nov. Shrub tw. 



5 S. LINEA'TA (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. \~ t . . S. Native of Java, in shady 

 places, on mount Salak, where it is called Aroy kakavalan. 



Lined-leaved Secamone. Fl. June, Sept. Shrub tw. 



6 S. LAKCEOLA'TA (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. j . ^. S. Native of Java, in calcareous 

 soil, frequent. 



