14 NEW ZEALAND NATURE-STUDY BOOK 
Mako-mako dentate, and of the 
Poplar and Mahoe crenate. ‘The 
terms saw-like, toothed, rounded, 
may be used instead of the ones 
given above. 
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Fig. 14.—White Thorn leaf ; Fig. 15.—Spanish Chestnut, 
incisions in margin deeper (serrate margin), 
than in Oak leaf. 
The Surface. The surface of the blade may be 
smooth, rough, glossy, dull, hairy, furnished with spines 
or prickles, wrinkled, or sticky. 
Venation of the Blade. ‘The arrangement of the 
veins may be grouped under two heads (1) parallel 
veining, (2) net-like veining. In parallel-veined 
leaves, a number of veins nearly equal in size extend 
side by side from the base toward the tip of the 
blade. The veins are approximately parallel, and are 
united by smaller ones running across nearly at right 
hae Parallel veining is characteristic of grasses and 
ilies. 
