160 
CONTRIBUTIONS TO BOTANY. 
half that length, and sre remarkable for their alternate sub- 
division, forming an almost capitate head of very minute flowers. 
31. Cissampelos argentea, H. B. K. v. 67 ; — Cissampelos Bareira, 
Eichl. [non Linn.) 1. c. p. 189 ; — ramulis flliformibus, striatis, 
incano hirsute tomentosis ; foliis subpeltatis, subrotundato- 
reniformibus, apice emarginatis et brevissime mucronatis, 
membranaceis, 7-nerviis, supra viridibus, pubescentibus, sub- 
tus argenteo sericeo tomentosis ; petiole filiformi, villoso, 
limbo sequilongo : paniculis axillaribus, geminis, cymosis, 
petiole brevioribus; pedunculo 3-4-ramoso, ramis radiatis, 
dichotome divergeutibus, bracteolatis, pedicellisque capillari- 
bus pilosis. — Prope Mompox, Rio Magdalena. 
From Kunth’s description, this species seems to approach 
Cissampelos canescens ; but it differs iu its leaves being mem- 
branaceous, broader than long, reniform, and not cordate at the 
base, also in their silvery pubescence, their very slender petiole 
of equal length, and in tbe leaf-like bracts of its cymose panicles. 
The leaves are Ij-l^ inch long, l^-lf inch broad, on a petiole 
1-1^ inch long. The panicle, at the apex of the peduncle 
where its branchlets radiate, have two suborbicular bracts on very 
short petiolules, pubescent above, sericeous beneath, 3^ lines, 
diminishing gradually to | line in diam.; the branchlets also 
have minute linear bracteoles ; the sepals are cuneately obovate 
and extremely pilose. 
32. Cissampelos subreniformis, Tr. & PI. Ann. Sc. Nat. ser. 4. 
xvii. p. 41 ; — Cissampelos Pareira, Eichl. {non Linn.) 1. c. 
p. 189; — ramulis teretibus, dense flavo tomentosis; foliis 
subpeltatis, junioribus fere palatis, orbicularibus, imo sinu 
angusto profunde cordatis, apice emarginatis et mucronulatis, 
7-nerviis, coriaceis, reticulatis, supra sericeo pubescentibus, 
subtus dense flavido tomentosis, marginibus lanatis ; petiolo 
breviusculo, subvalido, striato, dense tomentoso : panicula ^ 
axillari, tomentoso-pilosa, folio breviore; pedunculo brevius- 
culo, ramis pluribus, alternis, brevibus, multoties divisis; flo- 
ribus numerosissimis, hinc in capitula majuscula crebre ag- 
gregatis, pilosis : racemis $ solitariis vel geminis, folio bre- 
vioribus ; bracteis paucis, floribus brevioribus et baud conspi- 
cuis ; floribus dense fasciculatis ; pedicellis ovario paulo lon- 
gioribus ; stigmate fere sessili, bipartite. — In Ecuador et Bra- 
silia centrali : v. s. in herb. Mus. Brit, et Hook., Douro, prov. 
Goyaz (Gardner, 3002). 
I have here considered Gardner's specimen as the of M. 
Triana’s plant, which I have not seen; for it agrees w^ell in the 
form and size of its coriaceous leaves, their vestiture, and the 
