Mr. J. Miers on the Menisperraacese. 41 



flowers ; the female flowers and the seed are therefore wanting 

 to complete its generic features. 



22. Cyclea. The characters of this genus have heen com- 

 pleted from my observations upon some Indian plants, which 

 appear to correspond with the Cocculus Burmanni, a species to 

 which Dr. Wight cursorily refers (111. Ind. Bot. i. p. 23), as 

 being distinct from Clypea, and for which, although he offers 

 no generic character, he suggests the title of Cyclea : I therefore 

 willingly adopt his name. Here also belong Cissampelos discolor, 

 Wall. (Cat. n. 4982, non DC.) ; C. barbata, Wall. Cat. n. 4978; 

 Menispermum villosum, Roxb. 



23. Cissampelos, Linn. A great many heterogeneous plants 

 have been referred to this genus, and it is impossible to determine 

 many of the species that really belong to it, from the mere laconic 

 descriptions by which they have been particularized. I have 

 been able to examine many, and to refer them to their proper 

 places, but several yet remain to be inspected ; I have also deter- 

 mined a number of new species yet undescribed. As the habit 

 and floral structure of this genus are so peculiar, there can be 

 little hesitation in referring here by far the greater number of 

 the recorded species, notwithstanding the imperfect descriptions 

 given with them. There are however several among them that 

 do not conform to this test, and others of which no sufficient 

 character is registered. Among these two classes of doubtful 

 species are C psilophylla, Presl ; C. triloba, Spr. ; C. acuminata, 

 DC. ; C. laurifolia, Poir. ; C. ebracteata, St. Hil. ; C. australis, 

 St. Hil.; C monoica, St. Hil.; C. gracilis, St. Hil.; C. Haenkeana, 

 Presl; C. hirsutissima, Presl; C. Kohautiana, Presl; C. cordi- 

 folia, Boj. ; C. apiculata, Hochst. ; C. glabra, Roxb. ; C. ovata, 

 Poir. 



24. Antizoma, a new genus founded upon the Cissampelos 

 calcarifera and the C. angustifolia of Burchell, to which I have 

 added three other species, all from the interior of South Africa. 

 I have seen only male flowers, so that its entire generic character 

 remains yet imperfect. 



25. Rhaptomeris, a genus founded upon the imusual circum- 

 stance in this family of its calycine segments being united into 

 a campanular gamophyllous tube, and its petals being connate 

 in form of a globular cup. It consists of two species, both from 

 Ceylon, one being the Cocculus Burmanni, DC. (non W. and A.). 

 The female flowers and fruit are as yet unknown. 



26. Cocculus, Bauh. This genus has served to receive Me- 

 nispermaceous plants of every denomination, so that very few of 

 the numerous species enumerated by difierent authors can now 

 be referred here with certainty. As at present defined, Cocculus 

 Carolinianus, DC, may be considered its type. I have deter- 



