XCV. ASCLEPIADEX, (J. D. Hooker.) 3 
**** Corona single, staminal, cupular or annular. Corolla rotate. 
Corona of a 10-lobed ring, and 5 horny processes behind the 
anthers . . . . . . . . . ee 25, HOLOSTEMMA. 
Corona annular. Leafy erect or twining herbs or shrubs . 26. CYNANCHOM. 
Corona annular. Leafless straggling shrubs. . . . . . 27. SARCOSTEMMA. 
TnrsE IV. Marsdeniez. Anthers with a membranous inflexed tip 
(absent in Physostelma and rarely in Hoya) ; pollen-masses solitary in each cell 
(10 in all), sessile, or pedicelled in pairs on the corpuscle, erect (rarely horizon- 
tal or pendulous in 7ylopAora). 
* Corolla-lobes overlapping. Corona 0, or corolline. 
Stem twining. Corolla-lobes short. Corona0. . . . . 28. SARCOLOBUS. 
Stem pendulous. Corolla-lobes long. Stigma included . . 29. PENTASACME. 
Stem twining. Corolla lobes short. Corona on the corolla- 
tube . . . , fl, . . . . . . 80. GYMNEMA. 
" Corolla-lobes overlapping. Coronal processes on the staminal column, 
rarely 0. 
t Corolla urceolate companulate or salver-shaped. 
Corolla urceolate, Coronal processes minute or 0. Stigma 
included e. e ee s s. e s. s s. s s 91. GoNGRONEMA. 
Corolla urceolate or salver-shaped. Coronal scales on the 
back of the anthers, simple. . . . . . . «+ + + 92. MARSDENIA. 
Corolla rotate or salver-sbaped. Coronal scales on the back 
of the anthers, notched . . . . . . 88, PERGULARIA. 
Corolla Salver-shaped, coriaceous. “Coronal scales 0 (in 
Indian Species) toe ee ee ee se s ee s s 94. STEPHANOTIS. 
Corolla-lobes long, doubled down inwards in bud . . . . 35. Lycisma. 
tt Corolla rotate. 
Cymes various, Column minute. Coronal processes fleshy. 36. TYLOPHORA. 
Cymes umbelliform. Column large; coronal processes simple 37. TREUTLERA. 
ymes racemiform. Column minute, fleshy; coronal pro- 
cesses 2-fid 2 2. , , fw. ee . . 88. Cosmosticma. 
es umbelliform, pendulous. Coronal scales spreading, 
Cuspidate . , . 2... s e 99. DREGEA, 
*** Oorolla valvate. Coronal processes adnate to. the staminal column. 
Corolla small, rotate. Column short, corona stellate. Fol- 
icles slender . . | . . . . . . , . ye 40. HerEROSTEMMA, 
orolla large, rotate. Column short, corona stellate. Fol- 
lieles stout, 41. DITTOCERAS. 
Corella urceolate or disciform. ` Corona cupular, fleshy . . 42. OIANTHUS. 
Corolle minute, urceolate. Coronal scales membranous, erect 43. DIScHIDIA. 
our rotate. Corona very large, stellate . . . + + + 44. Hoya. 
ordi. tapular. Corona large, stellate . . . + : whe 45. PHYSOSTELMA. 
e Short, lobes 1 subulate. Ovary sunk in the 
Calyx-tube " 20. ons . na . Y . . . 46. PxcNoRHACHIS. 
Tere y Ce i he stigma, without a 
. ropegiesae. Anthers incumbent on the stigma, r 
the ranous tip; pollen- masses one in each cell (10 in all) sessile in pairs on 
corpuscle, erect or horizontal. Corolla-lobes valvate in all. , 
B 
