4 XCV. ASCLEPIADEX. (J. D. Hooker.) 
* Corona double; corolline lining the corolla-tube and forming minute 
processes in the sinus of its lobes, staminal annular. 
Calyx turbinate, 5-lobed. Corolla rotate. . . . . . . 47. LePTADENTA. 
Calyx 5-partite. Corolla salver-shaped . . . . . . . 48. ORTHANTHERA. 
** Corona staminal, simple or compound, annular, 5-10 lobed, with 5 pro- 
cesses from its inner face which overlap the anthers. 
T Leafy herbs with terete stems and branches. 
‘Corolla rotate, lóbes very narrow. Stem very slender, erect 
or twining. . . . . . . . . . V. . s. « . . 49. BRACHYSTELMA. 
Corolla-tube long. Stem stout or slender, erect or twining . 50. CEROPEGIA. 
Corolla rotate. Stem erect and branches short, stout, fleshy . 51. FREREA. 
tt Leafless herbs, with fleshy A-angled stems and branches. 
Corolla rotate, lobes very narrow. Flowers lateral, subsolitary 52. CARALLUMA. 
Corolla rotate, lobes very broad. Flowers terminal, umbelled 53. Bovcknostia. 
GENUS KNOWN BY NAME ONLY. 
‘OpontanTHERA, Wight in Lindl. Veg. Kingd., 626. 
TRIBE 1. PERIPLOCEZ. 
1. PENTANURA, Blume. 
Twining glabrous shrubs. Leaves opposite, elliptic, strongly nerved. 
Flowers small, fascicled on a short axillary peduncle, purplish. Calyx small, 
5-glandular within. Corolla subcampanulate, fleshy; lobes concave, over- 
lapping to the right. Coronal scales 0. Filaments free, arched, bases distant ; 
anthers oblong, adherent below to the stigma, tipped with bearded appendages ; 
pollen-masses granular ; appendages of the corpuscles stipitate, flabellate. Stigma 
capitate, 5-angled. Follicles divaricate, cylindric. Seeds comose.—Species 2 ; 
a Sumatran and the following. 
P. khasiana, Kurz in Herb. Calcutt. ; glabrous, leaves elliptic-lanceo- 
late acuminate at both ends, petiole slender. Pentanura sp., in regione Yunan 
and Periploca khasiana, Benth. in Gen. PI. ii. 740 and 746. 
Kuasa Mrs., alt. 3-4000 ft., J. D. H. & T. T., Kurz.— DisrRIB. Yunan. : 
Branches smooth. Leaves 4-5 by 11-11 in., reddish when dry beneath and finely 
reticulated, midrib stout; nerves 8-10 pairs, arched ; petiole 4-4 in. Peduncle stout, 
l in, in the Khasian specimen, 1-1 in. in the Yunan ones. Corolla about iir. diam. ; 
lobes pubescent within, pink, Filaments und back of anther pubescent as in Phyllan- 
thera (which is perhaps not generically distinct) in the Yunan specimens, glabrous in 
the Khasian. Style elongate; stigma 2-lobed at the top. Follicles (young) in 
Khasian specimen 1-$ in. long, ovoid, ineurved, obtuse.—I have not seen the 
Sumatran species which is the type of the genus. 
2. HEMIDESIMUS, 7. 
Twining shrubs. Leaves opposite, hoary or pubescent beneath. Flowers 
small, in opposite crowded subsessile cymes, greenish-purple. Sepals glandular 
within, acuminate. Corolla rotate ; lobes thick, valvate. Coronal scales 5, on 
the corolla-throat, alternate with its lobes, short, thick. Filaments distinct ; 
anther-tips connate, inflexed, membranous; pollen-masses cohering in pairs in 
