EXOCARPOS-TREES OR NATIVE CHERRY-TREES. 4] 
consists for the greater part of copious albuminous substance ; the 
minute embryo occupies the uppermost part of the kernel, and is 
divided at the lower end into two cotyledonar lobes. This tree 
‘ occurs nowhere 
gregariously, but 
is scattered among 
other trees, and 
prefers an indivi- 
dual close  ap- 
proach to their 
shelter or shade. 
For artistic illus- 
tration of the 
Exocarps is here 
chosen EK. spartea, 
the desert-species, 
remarkable for its - 
pendent — slender 
branches ; the 
leaves of this tree 
are longer and 
drop early, and ex- 
ceptionally dilate 
also ; the flower- 
spikes are also 
more elongated ; 
the division of the 
flowers varies into 
four or five seg- 
ments and the cor- 
responding num- 
bers of stamens ; 
the fruitstalks are 
less turgid and 
also less intensely Fig. XVIII.—(Exocarpus spartea).—1, an exceptionally 
broad-leaved branchlet ; 2, flower seen from above; 3, 
_  Stamen; 4, pollen-grain; 5, fruit; 6, the same longitu- 
We POSSESS IN dinally dissected, to exhibit albumen and embryo. 
Fic. XVIII. 
red. 
