CISSAMPELOS. 909 
Indeed were it not soin case of additional carpella, 
being formed, it is at once evident, that the placente of 
these would have no tendency to meet in the centre, 
they would instead of all being directed towards the 
axis, be all directed towards the circumference. Upon these 
grounds the supposition, that in the plant referred to, the 
flowers produced from the axille of each bracte, form part 
and parcel of a single flower, is untenable, as will be at once 
seen by looking at the explanatory sketch, which represents 
the structure of Clypea. Pl. CCCCLXXXVI. Fig. II. 
he supposition otherwise, considering that the female 
flowers are generally aggregated by fours, corresponding to 
the quaternary structure of the males, seemed not improba- 
l 
But the true explanation has been offered to me by my va- 
lued friend Dr. Wight, and this is borne out by the considera- 
tion of the stigmata, to which I ought to have paid more at- 
tention. The stigmata of this genus appear to be invariably 
three, and we may take this asa proof that the ovary is 
Solitary by abortion, of the three stigmata, the central 
One is external with reference to the axis, it is solitary 
by the abortion of the two lateral ovaries. 
Granting these to become developed, the situation of the 
Placenta will be natural: see sketch, à which points out what 
Would be the situation of the placentz of the lateral ovaries. 
Corresponding to this is the suppression of 3, or generally 3 
of the parts entering into the composition of the Perianth. 
1. Cissampelos capitata Gr. 
Suffrutex volubilis pubescentia crispata presertim folia 
Subtus sublanata. 
Caulis viridescens. Fol. peltata oblique cordato-ovata ob- 
48 acuminata cum mucrone, ambitu deltoidea, subcoriacea 
Integra, basi 9-venia, ceterum reticulata. 
tioluis uncialis biuncialisve teres axille gemmifere tan- 
