282 Trees for Shade and Ornament 



adapted for skirling boundaries of evergreen groups, and for the interior 

 of groves, but it needs rich soil and grovi^s slowly. 



Of several varieties the red-flowering one (rubra) may have its place 

 in grouping with the white-flowering; a pendulous one makes a good 

 weeping form. 



C. altermfolia Linn. (193), Alternate Leaf Dogwood, is a smaller 



Fig. 98. — Cockspur Thorn. Crataegus Crus-galli Linn. 



hardy native tree, or more often a shrub, with smaller yellowish-white 

 flowers (June) in flat clusters, and black to blue berry-like fruit, with 

 foliage dark green above and pale beneath, with a horizontal spread of 

 bright shiny-green branchlets. 



For winter effects the purplish branches and silky down of the native 

 C. amomum Mill. (194) (sericea), Kinnikinnik, a spreading shrub 

 (five to ten feet) (bearing white flowers in clusters and blue berries), 

 and the red branches of the red European C. sangiiinea Linn. C195), or 



