234 
CONTRIBUTIONS TO BOTANY. 
palata, late ovata vel elliptica, nitida, suhtus incana, pinnato- 
nervosa, breviter petiolata : panicula ^ axillaris, glaberrima, 
gracilis, folio longior, bracteolata, mox ramosa, rarnis longius- 
culis, rainulis spicatim plurifloris ; flores minuii, brevissime 
pedicellati. 
Clambus araneosus, nob.-, — ramulis virgatis, subangulatis, glabris, 
cortice rugosoj foliis palatis, ovalibus vel elliptico-oblongis, 
apice canaliculatim recurvis et repente brevissime acuminatis, 
penninerviis, nervis utrinqiie 8, alternatim parallele curvatis, 
et inter se anastomosantibus, transversim venosis, subcoria- 
ceisj utrinque glabris, supra opace et Isete viridibus, subtus 
nervis venisque reticulatis subprominentibus, areolis elegan- 
tissime et minutissime arachnoideis, bine cretaceo-lutescenti- 
bus; petiolo superne canaliculate, glabro, limbo 18-plo bre- 
viore : panicula (j axillari, folio sequilongo vel longiore, glaber- 
rima, floribunda, alternatim I’amosa ; rachi tenui, ramis fili- 
formibus, subflexuosis, ramulis brevibus, imbricatim bracteo- 
latis; floribus minutis, e bracteolis brevissime pedicellatis, 
glaberrimis. — In Mexico : v. s. in herb. De Boissier (Pavon). 
This is a specimen with an aspect very different from any 
Menispermaceous plant I have hitherto seen. The internodes, 
at intervals of about an inch, have a prominent decurrent rib on 
each side ; the leaves are of a dull pale green colour, somewhat 
stout in texture, singularly nerved, 4*-4^ inches long, 2^-3 inches 
broad, on a petiole only ^ inch long, palately inserted. The ^ 
axillary panicle is 3-5 inches long ; the rachis is slender and 
compressed, its primary filiform branches 1^-2 inches long, the 
branchlets 2-3 lines long, the pedicels as long as the bractlets, 
^ line long. At the termination of the main branches, the leaves 
heing abortive, a number of alternate ascending panicles sprout 
at intervals of about half an inch, the whole thus assuming a 
terminal thyrsoid inflorescence. 
31. Cyclea. 
This genus, established by Dr. Arnott, was confounded with 
Chjpea and Stephania, until I flrst pointed out the lines of de- 
marcation between them. It is easily distinguished from them 
by its habit, another kind of inflorescence, by having a gamo- 
sepalous calyx, a turbinately campanular corolla, both of them 
often toothed or cut into deeply laciniated segments, and by 
having a very different putamen. The authors of the ‘Flora 
Indica,^ in acknowledging the validity of Cyclea, rightly united 
my genus Rhaptomeris with it : in the former the calyx and co- 
