432 DECIDUOUS TREES. 



as the horse-chestnut, and holds its leaves and color late. In 

 bloom and fruit it closely resembles the preceding varieties of the 

 mountain ash, but in the color of its foliage, and the breaks of 

 light and shadow on its surface, it is a much finer tree. Height 

 and breadth from twenty to thirty feet. There is a weeping variety 

 of this species, which we have not seen, but which is reputed to be 

 interesting ; also a large-leaved variety. 



THE DWARF-PROFUSE-FLOWERING MOUNTAIN ASH, P. nana 

 floribunda, is a variety of the oak-leaved mountain ash, but the 

 leaves have returned to the primal form of the species, being com- 

 pound, quite delicate, and acacia-like. It is grafted on other 

 stocks from four to six feet high. The blossoms, in small and 

 abundant white clusters, appear in May. In blossom, foliage, and 

 bright-red fruit, it is equally pretty. 



There are many other varieties named in nursery catalogues, 

 but the above are the most noteworthy. 



FIG. 141. 



THE DOGWOOD. Cornus. 



The dogwood family are numerous, and vary widely from each 

 other in their characteristics. They form low suckering shrubs and 

 whip-plants on the borders of streams and in wet ground, and in 

 other places low trees, most of which are indigenous from Canada 

 to the Gulf of Mexico. The most common, and the most showy 

 in blossom, if not in leaf, is the following : 



