144 BOTANICAL GAZETTE [FEBRUARY 
scattered bundles in the pith, but there are no cone domes, and 
the scattered bundles seem to have no connection with cones. In 
regard to the bundles in the pith, this stem is somewhat like that of 
Macrozamia Fraseri, as described by WoRSDELL.* 
The tracheids of the xylem show two, three, or four rows of 
crowded bordered pits. There are uniseriate rays, similar rays 
two or three cells wide, and large rays containing vascular strands, 
Fic. 3.—M. Moorei: ovulate cones about 76 cm. in length 
as in Dioon. There is no more difference between the general and 
histological structure of the stems of Macrozamia and Cycadeoidea 
than may be found between different genera of Cycadales. Ben- 
nettitales and Cycadales could hardly be separated on the b asis of 
stem structure. 
The ovulate cones are large and are seldom borne singly, tw®, 
three, or four being more common than a single cone, and in one case 
t WorsDELL, W. C., Anatomy of the stem of Macrozamia compared with t hat of 
other genera of Cycadaceae. Ann. Botany 10: 601-620. pis. 27-28. 1896. 
