Order 40.— THE MAPLES. 



183 



Fig. 430. Red Maple (^Acer rubrum), a leaf and several saraara. Fig. 431. Sugar Maple 

 {Acer sacchariiium), leaf, flowers, and fruit 



2 A. rubrum. Red If. Swamp M. Loaves lobed, cordate at base, paler beneath. 

 Petals linear-oblong'. Ovaries and fruit smooth. 40 to lOOf. Flowers red. 



3 A. sacchari'num. Bock M. Sugar M. Leaves cordate, 5-lobed, with deep, 



rounded openings between. Bark light gray. g-y. 



4 A. ni'grum. Black Af. Sugar-tree. Leaves cordate, with the sinus closed, 



roundish, with 3 broad, shallow lobes. Bark dark gray. y. 



5 A. spicatum. Mountain-Bush M. Eacemes erect, thyrse-like. Shrub 10-15f. 



high, in clumps. Bark gray. Leaves 3-5-lobed. g. 



6 A. Pennsylvan'icum. Striped M. W histle-ivood. Eacemes drooping. Tree small, 



with striped bark (green and black). Leaves 3-lobed. g. 



7 A. Pseudo-Plat 'anus. Si/camore M. Eacemes long, drooping. A large tree, in 



parks. Leaves 5-lobed, broad, rounded. Flowers grcL-n. 



I 



