Dwarf Maple 



643 



sepals, but they are longer than the stamens in the pistillate flowers, while the 

 stamens of the sterile flowers are much longer than the sepals. The samaras arc 

 smooth, soon red, and diverge from each other as widely as is possible; they are 

 about 3 cm. long, the wing 8 to 15 mm. wide. 



The wood is used in small quantities for the handles of tools; it is hard, light 

 brown, with a specific gravity of 0.67. The tree succeeds well in cultivation and 

 is of great beauty. Professor Greene has described Acer Macounii, from specimens 

 collected by Mr. J. M. Macoun, in British Columbia, as distinct from the Vine 

 Maple. 



5. MODOC MAPLE Acer modocense Greene 



This recently described tree is a native of northern California, related to the 

 Vine maple, but apparently distinct from 

 it, though known as yet only from a few 

 specimens. 



The bark of twigs is smooth, faintly 

 shining, Hght brown. The leaves are 

 thin, nearly orbicular in outline, 5 to 6 

 cm. broad when mature, with 5 radiat- 

 ing ovate lobes which are pointed and 

 sharply irregularly toothed; the leaf-sur- 

 faces are nearly equally light green on 

 both sides, the under surface somewhat 

 hairy on the veins and at the end of the 

 slender smooth stalk, which is from 2 to 

 3 cm. in length. The small flowers are 

 described as green or greenish white, the 

 sepals oval and but httle longer than the 

 petals. The samaras diverge nearly at 



Fig. 592. Modoc Maple. 



180, the seed-bearing part plump, strongly ner^-ed, 5 mm. long, and nearly as 

 thick as long, the oblong blunt wing nearly 2 cm. long and about 8 mm. wide. 



6. DWARF MAPLE Acer glabrum Torrey 



This small tree or shrub occurs along streams and on hillsides from Montana 

 and Idaho to Wyoming, wt=tem Nebraska, throughout Colorado to New Y, j 

 and Arizona, and also in the Sie^- Nevada Mountains of Cahfomi- 

 a maximum height of only about t eters, and its tnmk is not J- ^ ^ 

 2 dm. in thickness. It is also called SI "ubby maple. 



Its bark is thin and red-brown. The *wigs are smooth 

 come red-brown; the long-stalked thin leave 

 when very young, nearly orbicular in outlin 



o 



