328 MANUAL OF GARDENING 



Flowering crab, P. fioribunda. ^ 



Pretty both in flower and fruit; a, large shrub or small tree; various 

 forms. 



Hall's crab, P. Halliana (P. Parkmani). 



One of the best of the flowering crabs, particularly the double form. 

 Various forms of double-flowering apple are on the market. 



Swamp white oak, Quercus bicolor.*\ 



A desirable tree, usually neglected ; very picturesque in winter. 



Bur oak, Q. macrocarpa.*'\ 



Chestnut oak, Q. Prinus,*] and especially the closely related Q. 



Muhlenbergii (or Q. acuminata) .*'\ 

 White oak, Q. alba.*\ 

 Shingle oak, Q. imbricaria.*^ 

 Scarlet oak, Q. coccinea.*\ 



This and the next two are glossy-leaved, and are desirable for bright 

 planting. 



Black oak, Q. velulina [Q. tinctoria) .*'\ 

 Red oak, Q. rubra.*-\X 

 Pin oak, Q. palustris.*'\ 



Excellent for avenues; transplants well. 



Willow oak, Q. Phellos* 

 English oak, Q. Robur. 



Many forms represented by two types, probably good species, Q. pedun- 

 culata (with stalked acorns) and Q. sessilijlora (with stalkless acorns). Some 

 of the fonns are reliable in the Northern states. 



The oaks are slow growers and usually transplant with difficulty. Natural 

 specimens are most valuable. A large well-grown oak is one of the grandest 

 of trees. 



Locust, Robinia Pseiidacacia.*'\ 



Attractive in flower; handsome as single specimens when young; many 

 forms; used also for hedges. 



Peach-leaved willow, Salix amygdaloides.* 



Very handsome small tree, deserving more attention. This and the next 

 valuable in low places or along water-courses. 



Black willow, S. nigra.* 



