A GARDEN FLORA 
59 
fD. sangainea. S. America. 
|D. suaveolens. Mexico. 
Syn. D. Knightii. 
DAVID IA. Comaceae. 
D. involucrata. Central and W. China. 
Height 18 feet. Like the Cornels, D. involucrata 
owes its chief beauty to the large white bracts which 
surround the flowers rather than to the flowers 
themselves. 
Here, in the summer of 1915 it flowered pro- 
fusely, for the first time since it was planted some 
ten years ago : about seventy flowers were counted, 
and the seed ripened the following autumn. 
It is apparently quite hardy in its present shel- 
tered position in the Wall Garden, where it has 
grown as much as two feet in one season. 
Mr. Wilson in his book A Naturalist in Western 
China says he considers it the most interesting and 
beautiful of all trees in the North Temperate flora. 
DECAISNEA. Berberidacese. 
D. Fargesii. W. China. 
A hardy shrub with handsome foliage, which 
flowers here in June in the western border, and bears 
fruit. 
DECUMARIA. Saxifragacese. 
D. barbara. S.E. United States. 
DELPHINIUM. Ranunculaceee. 
Garden varieties. 
DENDROMECON. Papaveracese. 
*D. rigidum. California. 
DESFONTAINEA. Loganiacese. 
D. spinosa. Chile, Peru, etc. 
Height 6 feet, diameter 6£ feet. There are several 
plants of D. sjpinosa in the garden. The best is 
growing in a shady and damp comer of a sunk 
garden, where it only gets the early morning sun. 
It flowers well in August. 
