312 SEED-STRUCTURE OF RAFFLESIACEZ AND HYDNORACEZ. 
consequence of the cell-walls of the endosperm, which are directed 
inward, and the cell-walls of the embryo directed outwards and 
butting against t er, presenting strongly convex surfaces to 
each r, there are intercellular spaces where these cells do not 
ouc ey are, in a longitudinal section, of an irregular three- 
really intercellular spaces into which it has flowed from the force 
of the cut, or whether these spaces answer to true cells, and owe 
their malformat growth of the em 
vening three-cornered spaces already described. It is built up of about 
he two lower are usually 
they cut each other at all conceivable angles; each embryo exbibit- 
ing a different disposition of the pairs of cells of its several stories. 
As a consequence, the difficulty of obtaining a thorough understanding 
in this respect is considerably enhanced, it being impossible e 
large cells of the embryo with strongly convex outer walls, : 
circumstances unfavourable to the examination of the perfect embry 
1: are ; i tructure, and 
e clue to the origin of this peculiar seed s soviously 
are 
in the seeds of which the convexity of the abutting cells © 
embryo and endosperm is much less prominent, and thus th ci 
nature of these said intercellular spaces is more clearly see? than a 
the other species. The section fig. 9 was particularly instructive. 
