CONTRIBUTIONS TO BOTANY. 
11 
two-thirds of its length, and more or less uncinately curved at 
its base. In both cases the seed is folded upon a perpendicular 
internal laminiform condyle, which protrudes from the ventral 
face of the putamen nearly to the centre of the cell, where it 
terminates in a longitudinal placentiferous margin ; the copious 
albumen which fills the cell is deeply ruminated in all directions 
by numerous clefts ; the integuments penetrate these clefts, and 
also cover the deep longitudinal groove formed by the projecting 
condyle, to the placentiferous margin of which they adhere along 
the line of the raphe. The embryo is nearly anatropous, a little 
bent or partially heterotropous,very slender, terete, and elongated, 
with cotyledons of the same diameter as the very short terete 
radicle, which is quite superior and only one-tenth of their 
length : these are accumbent, and placed on the axis of the al- 
bumen. The sepals are imbricated in sestivation, and the free 
fleshy petals separately embrace and almost conceal the stamens. 
Tribe 3. Tiliacore^e. The drupe is so extremely gibbous 
that the style is seen near the base of the fruit. The putamen 
is transversely oblong, laterally compressed, sulcated by a central 
line along the middle of each face, and rendered bimarsupiate 
by a long, horizontal, septiform, internal condyle ; the cell (and 
therefore the seed) is hippocrepiform ; the albumen is deeply 
cleft or ruminated, as in the last tribe, the integuments pene- 
trate its sinuosities, and they adhere to the condyle along the 
line of the raphe. The embryo, which lies in the centre of the 
albumen, is elongated, hippocrepiform, and nearly terete ; the 
radicle, pointing to the style, is of the diameter of the coty- 
ledons, and about equal to them in length ; they are always in- 
cumbent (not accumbent, as in the former tribe). The sepals 
of the inner »row are slightly imbricated in aestivation in some 
genera, and valvate in others. 
Tribe 4. Hypserpe^. The style here also is seen near the 
base of the fruit, in consequence of its excentric growth. The 
putamen is formed as in the preceding tribe, and the embryo, 
imbedded in simple albumen, is of the same slender proportions j 
but the cotyledons are accumbent (not incumbent). The sepals 
in aestivation are either imbricated or valvate, and the flowers 
are sometimes remarkable for being very unsymmetrical in the 
relative number of their parts. 
Tribe 5. Leptogone.®. The growth of the fruit is as ex- 
centric as in the last tribe, so that the style is always seen 
near the base. The putamen is generally osseous, nearly orbi- 
cular, laterally very compressed, forming a crescent-shaped or 
nearly annular cell circumscribed round the edge of an external 
peltiform condyle, a portion of the integuments along the 
line of the raphe being drawn into a fissure of the condyle. 
c 2 
