54 SILVA OF NORTH AMERICA. OLEACES. 
growth. It is light brown, with thick lighter colored sapwood. The specific gravity of the absolutely 
dry wood is 0.5780, a cubic foot weighing 36.02 pounds.' 
Fraxinus Berlandieriana was discovered by the Belgian botanist? whose name it commemorates 
in the valley of the lower Rio Grande in July, 1829. For centuries it has been planted in the cities 
of the Mexican table-land, except in those of Chihuahua, and their parks and plazas are often dignified 
by single individuals or noble avenues of this species, which no other Ash-tree surpasses in stateliness 
and beauty. 
1 The specific gravity of a specimen of the wood of this species construction, for the interior finish of houses, and in the manufac- 
taken from a large tree cultivated in northern Mexico is 0.5459, a _ ture of tools. 
cubic foot weighing 34.01 pounds. In Mexico the wood is used in 2 See i. 82. 
EXPLANATION OF THE PLATE. 
Pirate CCLXXITI. Fraximnus BERLANDIERIANA. 
. A flowering branch of the staminate tree, natural size. 
. A flowering branch of the pistillate tree, natural size. 
A staminate flower, enlarged. 
. A pistillate flower, enlarged. 
. A fruiting branch, natural size. 
. Fruits of different forms, natural size. 
NoarnPowobde 
. Vertical section of a fruit, natural size. 
