(8o) 



crab-apple, a native of eastern Asia ; the prune-leaved crab- 

 apple, a native of northern China and Japan; and Soulard's 

 crab-apple, from the central United States. In the plum 

 family, among others, may be found the rose-bud cherry, a 

 Japanese plant, and a highly decorative species; the double 

 form of the Japanese flowering cherry, native throughout 

 eastern Asia ; the ordinary sweet cherry, originally from Eu- 

 rope and western Asia, a delicious fruit, of which there are 

 many horticultural forms; and the ever-blooming cherry. 



Near the eastern end of the long bridge are trees illustrat- 

 ing the senna family, located south of the bridge approach, 

 and the pea family, the rue family and the mahogany family 

 on the north side. One of those in the senna family is the 

 honey-locust or three-horned acacia (Gleditsia) , a native of 

 the southeastern United States; its durability when in con- 

 tact with the ground makes its wood of especial value for 

 fence posts, for which purpose it is largely used; from China 

 and Japan comes the Japanese locust, also represented here. 

 Another of this family is the Kentucky coffee-tree, in several 

 large and small specimens. One of the representatives of 

 the pea family, from the Amur region, is the Amur yellow- 

 wood {Maackia) . Another is the locust-tree (Robinia) , a 

 native of the southeastern United States, but extensively nat- 

 uralized elsewhere; its wood is hard and close-grained, and 

 is very durable when in contact with ground or with water, 

 so the high value in which it is held for fence posts and for 

 ship-building may be readily understood. The rue family 

 has for representatives the Japanese cork-tree {Phelloden- 

 dron) , from Japan, and the Chinese cork-tree, from the 

 Amur region, China and Japan. The mahogany-tree family 

 has a single species represented, the Chinese bastard-cedar, a 

 native of China ; the mahogany tree itself, and other repre- 

 sentatives of the family, will be found at the conservatories. 



On the ridge to the northeast of the apple family, and to 

 the west of conservatory range No. 2, are trees of the ailan- 

 thus family, represented by the Ailanthus, or tree-of-heaven, 

 a native of China, but extensively naturalized in the eastern 



