184 
CONTRIBUTIONS TO BOTANY. 
repens ; ramis tortuosis, glabris ; ramulis tenuibus, teretibus, 
pubescentibus, clemum glabris; foliis subpeltatis, reniformi- 
orbiculatis, in magis cordatis, apice retusis, in $ sinu latis- 
simo minime cordatis, apice emarginatis, mucronatis, margini- 
bus revolutis, utrinque subpuberulis, vel fere glabris, 5-7- 
nerviis,valde reticulatis, supra atroviridibus, subtus ferrugineo- 
glaucis et tomentosis, nervis rubescentibus ; petiolo limbo 
aequilongo vel longiore, tenui, deflecto, pubescente; paniculis 
binis vel solitariis, axillaribus, pilosulis, petiolo bi-evioribus, 
subcorymbosis ; sepalis 4-5, extus pilosis, lineato-pictis ; vel 
interdum inflorescentia e ramulo novello axillari deflecto ra- 
cemum elongatum folio 6-8-plo longiorem simulante, rachi gra- 
cillima, bracteata; bracteis remotiuscnlis, reniformi-orbicu- 
latis, petiolulatis, singulis paniculis corymbosis geminis 3-plo 
longioribus munitis : racemo $ axillari, petiolo 2-plo longiore, 
spicatim bracteato ; bracteis subimbricatis, foliiformibus, utrin- 
que sordide glaucescentibus et glaberrimis; floribus in axil- 
lulis 3, fasciculatis ; pedicellis ovariisque glabris ; stylo brevi, 
crassiusculo ; stigmatibus 3, erecto-divaricatis, subulatis. — 
In Senegal et ins. Madagascar; v. s. in herb. Hook. $ , prov. 
Eminora, Madagascar (Bojer), Senegal (Romer) ; $ , Mada- 
gascar (Lyall, 89). 
The above diagnosis is made from the typical specimen col- 
lected by Bojer in INIadagascar, where it was found creeping in 
grassy places, and known by the name of Bouru-ravin. I have 
regarded Lyall’s specimen as the $ plant of the same. The 
species is distinguished by its slender twining stem, its small, 
rcniform, almost glabrous leaves, and its short corymbose pani- 
cles, either in the axils of the main leaves or in those of axillary 
elongated raceme-like branchlets. The main branches are slen- 
der and twining, with axils about 1 inch apart ; the leaves in 
the plant are 9 lines long, 13 lines broad, with a basal sinus 
1-2 lines deep, upon a slender petiole 6-8 lines long, which is 
fixed 1 line within the basal margin ; in the ? the leaves are 
15 lines long, 18 lines broad, with a basal sinus J line deep, 
upon a petiole 14-17 lines long, inserted 1| line within the 
margin of the sinus. The panicles are of the same length 
(6-9 lines), in the axils of the main branch as in those of 
the raceme-like branchlets, where the leaves are reduced to the 
size of bracts ; the flowering racemes or branchlets are 6-8 inches 
long, with axils ^ inch apart, each being furnished with two 
panicular corymbs and a leaflet 3 lines in diameter. The $ ra- 
ceme is IJ inch long; its subimbricated and often plicated 
bracts, 3 lines in diameter, are similar to those of the S inflores- 
cence. 
