116 
CONTRIBUTIONS TO BOTANY. 
2. Menispermum Dahuricum, DC. Syst. i. 540 ; Prodr. i. 102 ; 
Deless. Icon. i. 26, tab. 100; — M. Canadense, var. /3, Lam. 
Diet. iv. 95 ; — ramulis striatis, glabi’is ; foliis peltatis, cordatis, 
late deltoideis, angulato-lobatis, lobis 5-7, acutis et mucro- 
natis, 9-nerviis, reticulatis, membranaceis, supra nitidis, gla- 
bris, subtus pallidis, glabriusculis, in nervis breviter pube- 
rulis ; petiolo limbo longiore, subtenui, glabro : racemis ^ 
binis, axillaribus, petiolo dimidio brevioribus, pedunculo nudo, 
summo pedicellis plurimis unifloris subumbellatim capitellato. 
— In Asia septentr., v. s. in herb, variis, Irkutsk (Turezaninow); 
Dahuria (Fischer) ; China [in herb. Lindl .) ; v. v. in hort. bot. 
Kew cult, (sub nom. M. Canadense). 
This plant will be seen to be very near the typical species, 
differing in its usually smaller and more distinctly lobed leaves, 
but chiefly in the character of its infloreseence and in the num- 
ber of its floral pai'ts. Its internodes are I-l^ inch long, the 
leaves 1^-3 inehes long, 2^-3 inehes broad, petiole If-2^ inches 
long ; the peduncles of the ^ racemes are slender, 1-2 inches 
long, supporting ten to twenty subumbellated pedicels 2 lines 
long, bracteated at base ; flowers expanded, 2 lines in diam. ; 
sepals six; petals six to nine; stamens twelve. 
21. Pericampylus. 
This genus was proposed by me in 1851 for a small group of 
East-Indian plants, the type of which is the Cocculus incanus, 
Coleb. It has been adopted by the authors of the ‘ Flora Indica,’ 
who remark that “ it has the fruit of Cissampelos or Stephania, 
with the flowers of the tribe Cocculea ; the 2-partite style and 
the peculiar inflorescence distinguish the genus.” The authors 
of the new ‘ Genera Plantarum ’ go so far as to state that it is 
not sufficiently distinet from Cocculus. This opinion has evi- 
dently been formed under a complete misconeeption of its struc- 
ture, as the facts here adduced will show : they would have been 
much nearer the truth if they had so contrasted it with Meni- 
spermum. Pericampylus differs from the latter genus in its 
nearly palate leaves, in the isometrical number of its floral parts, 
in its larger spathulate sepals, in the large, fleshy, globose or 
clavate termination of the filaments, where they are suddenly 
bent back extrorsely at a right angle, and upon which the 
anther-cells are laterally imbedded, with a narrow and some- 
times excurrent conneetive between them : it differs no less in 
its excentric style, with a bifid or twice-bifid stigma ; in its pu- 
tamen, which (although with a condyle like that of Menispermum) 
has the whole of its external ring covered, by two or three lateral 
