ES LY 
GENERAL REMARKS, Tee. 
scale is present fixed near the base of the petal, or when 
the base, itself as glandular. 
It is to this excessive tendency, that the want of petals in 
Clematidez is to be ascribed, and hence we may be led to 
eXpect the existence of species belonging to this section in 
which the transformation is not altogether complete, and 
this will be proof furnished by induction. 
The ovula have only one tegument, which is testa. The 
closeness of the affinity of Umbellifere to this order doeg 
not appear to me very satisfactory. 
It is true, that there is a remarkable coincidence in habit, 
but not much more than there exists with certain Compo- 
site, such as Bidens, and Coreopsis. It is with this great 
family, that it seems to have very striking affinities, it ap- 
proaches to it beyond all doubt in the nature of its inflores- 
cence, in the frequent separation of sexes and above all 
in the difference, in formation between the flowers of the 
ray and the centre of the umbel, in the adhesion of the calyx 
with the ovary, in the reduction often even to obliteration of 
the former organ, in the number of styles and of stigmata. 
It certainly has marked differences of which the separation 
of petals is the most important, for monopetalism may 
regarded as at its maximum in Composite. In the bicar- 
pellary nature of its ovary it also differs, but such should 
be the structure of Composite. 
The different direction of the ovule is not much to be 
depended on, since in Opercularinez—a tribe acknowledged by 
all to be closely allied to Compositze, the seeds are pendulous. 
The same remark applies to the presence of albumen, with 
this difference that in Opercularinee, the embryo is axile, 
in Umbellifere basilar. That this minute point is not of 
much value, as indeed might be argued a priori, is indicated 
by the structure of the seed of Lardizabalee as compared 
with Menispermez. 
The first tendency towards suppression seems to take 
place in Vaterianeæ, in which the abortive cells are not quite 
