536 



BOTANY. 



A. dasycarpum, the Silver Maple, all of the Eastern United States, 

 furnlsli timber much used in the manufacture of furniture. 



From tlie sweet sap of the first much sugar is made in the Northern 

 United States. Its wood also is harder, and is known as Hard Maple, 

 to distinguish it from Soft Maple, derived from the other species. 



A. macropJiyUum, the Large Leaved Maple, and A. eircinatum,, the 



FlOS. 490-2.— iLLnSTRATIONS 01' AOBB PSBm>0-PiATAHUS. 



Fig. 490.— Section of flower. Magnified. 

 Fig. 492.— Ripe fruit. 



Fig. 491.— Flower diagram. 



Vine Maple, both of California and Oregon, yield a hard and close- 

 grained timber. 



Wegundo aceroides, the Box Elder of the Eastern United States, is a 

 fine ornamental tree. If. OaUfornicum, of the Pacific Coast, is much 

 like the preceding. 



Sub-Order V. Sapindece, — Flowers actinomorphio or zygomor- 

 phio ; sepdp without endosperm ; leaves mostly alternfite. (Fjg. 493.) 



