86 



TREES OF THE NORTHERN UNITED STATES 



Fruit often reddish, small, with the wings at about. a right angle. 

 A rather small, somewhat spreading tree with reddish branches; 

 wild in wet places and often cultivated. 



5. Acer Pseudoplatanus, L. (SYCA- 

 MORE-MAPLE.) Leaves thiekish, cordate, 

 downy beneath, with 5 rather crenately 

 toothed lobes, on long, often reddish 

 petioles. Flowers in long pendulous 

 racemes, appearing after the leaves. 

 Fruit hanging on the tree till after the 

 leaves fall in the autumn, the wings 

 forming about a right angle. A rather 

 large, spreading tree, 30 to 80 ft. high, 

 with reddish-brown twigs. Cultivated ; 

 from Europe. Many varieties of this 

 species are sold by the nurserymen ; 

 among them may be mentioned the Pur- 



A. Pseudopl&tanus. 



pie-leaved, Golden-leaved, Silver-leaved, Tricolored, etc. 



6. Acer saccharinum, Wang. (Str- 

 GAR OR ROCK MAPLE.) Leaves deeply 

 3- to 5-lobed, with rounded notches; 

 lobes acute, few-toothed ; base heart- 

 shaped, smooth above, glaucous be- 

 neath. Flowers hanging in umbel-like 

 clusters at the time the leaves are ex- 

 panding in the spring. Fruit with wings 

 not quite forming a right angle. A 

 large (50 to 100 ft. high), very symmet- 

 rical tree, ovate in form ,with whitish- 

 brown twigs. Wild throughout, and 

 extensively cultivated in the streets of 



Cities. * saccharinum. 



Var. nigrum, Torr. and Gray. (Black Sugar-maple. ) Leaves scarcely 

 paler beneath, but often minutely downy ; lobes wider, often shorter 

 and entire; notch at the base often closed (the under leaf in the 

 figure). Found with the-other Sugar-maple, and quite variable. 



7. Acer macroph^llum, Ph. (LARGE-LEAVED OR CALIFORNIA 

 MAPLE.) Leaves very large, 8 to 10 in. broad ; 5-, sometimes 7-lobed, 

 with deep, rounded notches ; lobes themselves somewhat 3-lobed and 

 repand-notched ; pubescentbeneath. Flowers yellow, in erect panicles, 

 fragrant, blooming after the leaves are expanded. Fruit large, with 



