Mr Arnott (m New Genera of Plants. 261 



phylla of Wallich ! in Roxb. Fl. Ind. (ed. Wall.) 2. p. 419, is 

 placed also in Kurrimia (K. ? macrophyUa, Wall. List, n. 7200), 

 while the structure and shape of the fruit is totally different from, 

 our species : this last, indeed, I still suspect to belong to Saxi- 

 frageae, and not to be distinct from Itea ; it is scarcely distin- 

 guishable from /. chinensis. Hook, and Am. in Bot. oT Bcechey's 

 Voyage, p. 189, t. 39. 



Having lately occasion to re-examine the species of Ascle- 

 piadeae of the Peninsula of India, I observed among Dr Wight's 

 specimens of the order, a rather remarkable plant, collected by 

 Roxburgh at the Cape of Good Hope, probably on his final re- 

 turn to England. The following character is derived both from 

 Dr Wight's notes and my own observations. 



I. ONCINEMA. 



Ord. Nat. ASCLEPIADEiE. Brown. 



Corolla carapanulata, 5-partita, tubo brevi. Corona staminea 5-phylIa; 

 foliolis tenuibus membranaceis planis obtusis intus simplicibus. Antherae 

 membrana terminatse. Massse pollinis compressse, anguste oblongae, 

 apice ad curvaturam affixae appendiculorum in apiculum adscendentem 

 desinentium, pendulae. Stigma conico-rostratum elongatum, apice sub- 

 biapiculato : corpuscula elongata apice capitellata. Folliculi 



Frutex volubilis, glaber. Folia lineari-lanceolata, attenuata. Cymae diffxtste, 

 dichoionuB^ pauci/lora, interpetiolares. 



1. O. Roxburghii Periploca Capensis, Roxb.! mst. 



Hab. Ad Caput Bonae Spei ; Roxburgh, (v. s. spec, in herb. Wight, 

 ab amiciss. Dom. N. B. Ward communicatum.) 



This appears a very distinct genus, much resembling in ge- 

 neral aspect Secamone emetica, except in the umbels or cymes 

 having fewer, much larger, and very differently shaped flowers. 



The following descriptions of some new genera of Cyperaceae 

 are by Prof. Nees von Esenbeck, of Breslaw. 



n. COURTOISIA, N. ab E, 

 Ord, Nat. CYPERACEiE, Juss Trib. CxPEREiE, N. ab E. 



Spicula subbiflora, disticha. Squama inferior minor, sterilis; secunda et 

 tertia majores alato^arinatae, subaequales; secunda fertilis hermaphro- 

 dita ; tertia sterilis includens quartam hermaphrodito-masculam minorem 

 inversam ! Stamina tria, filamentis filiformibus ; antheris linearibus, 

 erectis, parvis, luteis. Ovarium triquetro-subulatum, longitudine filal 

 mentorum ; stigmata tria, filiformia, contorta, in apice ovarii subsessilia. 

 Perigynium nullum. Caryopsin non vidi. 



Inflorescentia. Capitula composita e capittdis sett spiculis minoribus 3-5.ste. 

 chyis subsessUibus bracteolatisj disposita in umbellam Cyperoideam, (in nostra 

 specie simplicem^) involucratam^ ochreatamque. Involucella bracteaiia aw 

 gusta capitula fulciunt ct interstingunnt. Bracteolae seu squamulse proprice 

 membranace<Bj actiminatce, sub singula spicula singula^ spicula breviorcs. Spi- 



