188 



THE FLORA. 



481 , 



Fig. 430. Red Maple (Acer rubrtim), a leaf and several samara. Fig. 431. Sugar Maple 

 (Acer sacc/iarinum), leaf, flowers, and fruit. 



2 A. rubrum. Red M. Swamp M. Leaves lobed, cordate at base, paler beneatii 

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



3 A. sacchari'num. Rock M, Sugar M. Leaves cordate, 5-lobcd, with deep, 



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



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



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

 6 A. spicatnm. Mountain- Bush M. Eacemes erect, thyree-like. Shrub 10-15 



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

 6 A, Fennsylvan'icnm. Striped M. Whistle-wood. Racemes drooping. Tree smal], 



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

 A, Psendo-Plar'anus. Sycamore M. Eacemes long, drooping. A large tree, in 

 parks. Leaves 5-lobed, broad, rounded. Flowers green. 



