CASUARINAS OR SHEOAKS. BY 
the desert-tracts, but 
nevertheless ranging 
from the east-coast 
to the west-coast of 
extra-tropic Austra- 
lia. The branches 
are not pendent, the 
joints of the foliage 
but very = slightly 
streaked and _ ter- 
minating into 8-16 
appressed teeth. The 
whorls of the stami- 
nate spikes are closely 
approximate to each 
other, the fruits are 
short and the seed- 
like fruitlets are pale, 
not dark-brown as in 
most congeners. Our 
common shrubby Ca- 
suarina (C. distyla) 
is of wide dispersion 
through the more 
southern part of the 
Australian continent. 
The bracteoles, which 
form a large outer 
mass of the fruit, are 
blunt, turgid and 
comparatively short. 
The rudimentary 
leaves of each cylin- 
der are varying from 
six to eight. 
Fie. XVI. 
Ll 
Fie. XVI.—(Casuarina suberosa).—1, longitudinal 
section of fruit; 2, seedlike fruitlet; 3, fruitlet 
opened longitudinally; 4, transverse section of seed ; 
5, embryo; 6, spiral vessels, partly uncoiled, from the 
stratum between the seed and fruit-shell ; 7, vascular 
tissue of the walls of the fruit-shell (pericarp); 6 and 
7, magnified 300 times diametrically. 
