G.25] 



CLASSIFICATION AND DESCRIPTION 



87 



the seeded portion hairy; wings at 

 about a right angle. Tree very large 

 (100ft. high) ; wood soft, whitish, beau- 

 tifully veined. Twigs brown ; buds 

 green. Cultivated ; from the Pacific 

 coast, but not hardy north of 40 N. 

 latitude. 



8. Acer platanoides, L. (NORWAY 



MAPLE.) Leaves large, smooth, 5-, 



rarely 7-cleft,with cordate base ; lobes 



acute, with few coarse, sharp teeth, 



bright green both sides. The leaves A. macrophf num. 



resemble those of the Sycamore (Plata- 

 nus). Flowers a little later than the 

 leaves in spring, in stalked corymbs, less 

 drooping than the Sugar-maple (No. 6). 

 Fruit with wings diverging in a straight 

 line. A medium-sized, broad, rounded 

 tree with brown twigs and milky juice, 

 best seen at the bases of the young leaves. 

 Cultivated throughout. 



9. AcerLs&tum. (COLCHICUM-LEAVED 

 MAPLE.) Leaves 5- to 7-lobed. scarcely 

 heart-shaped at base, smooth and green 

 on both sides; juice milky; the lobes 

 A. platanoides. usually without any notches or irregu- 



larities, sometimes with about three 

 winding sinuations. Flowers in erect 

 corymbs. Differs from Acer platanoides 

 in having the lobes of the leaves more 

 nearly entire, and the fruitmuch smaller 

 with wings not so broadly spreading. 



10. Acer camp6stre, L. (ENGLISH 

 OR CORK-BARK MAPLE.) Leaves cor- 

 date, with usually 5 

 roundish lobes, spar- 

 ingly crenate or ra- 

 ther undulated ; juice 

 milky. Racemes of 

 flowers erect, appear- 

 A. camp^stre. ing after the leaves in 



spring. 



A. L&etum. 



Wings of the fruit 



