57 1 
Young Plant of Macrozamia Fraseri. 
bundles of the second foliage leaf pursue a nearly direct and longitudinal 
course in the axis. The marginal ones, on the other hand, pass tangentially 
in a nearly horizontal plane round the axis, right and left from the position 
of the leaf margins (Text-fig. 3, B, L 2 ). Fusions between individual traces 
occur. 
Text-fig. 4. Transverse section of cotyledonary node, x 250. C xr C 2 = cotyledon traces ; 
k L x = traces of first plumular leaf ; Z 2 = traces of second leaf, x 130. 
The final result is that these traces are also reduced to two bundles 
(Text-fig. 3, C. L 2 ), of which one, formed by fusion of the midrib system 
of traces, lies in the proximal portion of the central cylinder, i. e. verti- 
cally below the midrib of the leaf to which it belongs, while the second, 
formed by fusion of marginal traces, lies in the distal portion of the 
