4 XOT. ASCLEPiADEiB. (J. D. Hooker.) 



* Corona double ; coroUine lining the corolla-tulie and forming minute 

 processes in the sinus of its lohea, staminal annular. 



Calyx turbinate, 5-lobed. Corolla rotate 47. Leptadbnia. 



fCalyx 5-partite. Corolla salver-shaped 48. Oethanthera. 



** Corona etaminal, 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, llobes very narrow. Stem very slender, erect 



or tTPiriing 49. Bbachtstelma. 



iCoroUa-tube long. Stem stout or slender, erect or twining . 50. Ceropegia. 



■Corolla rotate. Stem erect and branches short, stout, fleshy . 51. FftsKEA. 



tt Lea/less herbs, withjleshy 4^anffled stems and branches. 



►Corolla rotate, lobes very narrow. Flowers lateral, subsolitary 52. C aealt.uma. 

 Corolla rotate, lobes very broad. Flowers terminal, umbelled 53. Bouceeosia. 



GBNDS KNOWN BY NAME ONLY. 



■Qdontantheba, Wight in Lindl. Veg. Kingd., 62g. 



Tbibe 1. PERIPZ.OCZ:^. 



1. FENTANUXtA, Blwme. 



Twining '^lalsrous shrubs. Leaves opposite, elliptic, strongly nerved. 

 Flowei-s small, fascicled on a sTiort axillary peduncle, purplish. Calyx small, 

 6-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, flabeUate. Stigma 

 capitate, 5-angled. Follicles divaricate, cylindric. Seeds comose. — Species 2; 

 a Sumatran and the following. 



P. khasiana, Kurz in Serb. Calcutt. ; glabrous, leaves elliptic-lanceo- 

 late acuminate at both ends, petiole slender. Pentanura sp., in regione Yunan 

 and Periploca khasiana, Bemth. in Gen. PI. ii. 740 and 746. 



Khasia Mts., alt. 3-4000 ft., J. D. H. ^ T. T., Kurz.—HisTmB. Yunan. 



Branches smooth. Leaves 4-5 by lJ-1^ in., reddish when dry beneath and finely 

 reticulated, midrib stout; nerves 8-10 pairs, arched ; petiole J-| in. Peduncle stout, 

 i in. in the Khasian specimen, J-1 in. in the Yunan ones. Corolla about i ir. diam. • 

 lobes pubescent within, pink. Filaments and 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 ^-| in. long, ovoid, incurved, obtuse.— I have not seen the 

 Sumatran species which is the type of the genus. 



2. KESIIDESiaVS, Br. 



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. Cororud 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 



