184 



NORWAY MAPLE, ETC. 



f 



Fig. 47. Norway Maple, Acer platanoides. Typical palmate vena- 

 tion, a midrib, which comes off with the other, radiating, primaries 

 b and d from a single point at the base; c tertiaries and terminals 

 forming network ; d basal primary ; e secondary ; / tertiary, p. 183 (Ett). 



(ii) Leaves small, usually not more than about 

 6 8 cm. in diameter, but may reach 10 or 

 12 cm.; pubescent below. Latex white. 



Acer campestre, L. Maple (Fig. 48). Small tree, often 

 with very corky twigs and branches. Leaves 3 7 x 4 10 

 cm., thin, not wrinkled and rather firm, more or less penta- 

 gonal, cordate at the base ; with 3 5 somewhat broad 

 obtuse lobes, the lower much smaller, each slightly cut into 



