SMALL DECIDUOUS TREES. 143 
three iobes, and are called tri-foliate, each division being 
oval, and somewhat pointed. The tree is a rapid grower 
when young, but does not become very large, usually not 
more than twenty feet high; seeds ripen in summer or 
early fall, and should be sown soon after; they are what 
is called winged seeds, and the membrane entirely sur- 
rounds them. 
Pyrus coronarta. (American Crab-Apple.) 
The wild Crab-Apple is seldom cultivated for ornament, 
still it is a very handsome tree, with large rose-colored 
flowers, and well worthy of cultivation; probably more 
plentiful in Wisconsin than elsewhere ; seeds ripen in au- 
tumn, and should be taken from the apple and sown at 
that time. The fruit is rather harsh and bitter, and not as 
“good as many of the cultivated Siberian Crab-Apples, 
which are even more ornamental, besides having the addi- 
tional merit of being useful. 
Pyrrus Americana (American ‘Mountain Ash).—A 
well-known ornamental tree producing large clusters of 
scarlet fruit, which remain on the tree until quite late in 
theautumn. The fruit should be gathered and put in a box 
and kept moist until the pulp becomes soft so that it can 
be separated from the seeds. Wash off the pulp and sow 
‘he seeds in frames or in a half-shady situation, as the young 
plants are liable to be burned by the sun when they are 
small, It grows ten to twenty feet high; is abundant in 
Northern Wisconsin and Michigan; also common in culti- 
vation. 
There are also many European varieties, seeds of which 
