PARROTIA 



P. Persica. Persian Iron Tree. (Ss) A dense -growing tree with spread- 

 ing branches, forming a rounded oval top. The tree closely resembles the 

 English beech, its foliage being of same size, shape and color, and in the fall 

 turns to brilliant shades of yellow and crimson. Thrives best in well-drained 

 soil. 



PERSICA. Peach 



P. vulgaris, var. alba plena. Double White-flowering Peach. (S m) 

 A flowering Peach, bearing dense clusters of very beautiful large double white 

 blossoms in May. 



P. vulgaris, var. sanguinea plena. Double Red-flowering Peach. (Sm) 

 Similar to the above, but with semi-double bright red flowers in May. 



P. vulgaris, var. foliis purpureis. Purple -leaved Peach. (Sm) The 

 foliage of this variety is a deep blood-red color in the spring, changing to a 

 deep purplish green in late autumn. Flowers are rose-colored and single. 



P. vulgaris, var. pyramidalis. Pyramidal Peach. (S s) Of exception- 

 ally fastigiate form, densely covered with bright rose-pink single flowers. 



PHELLODENDRON 



P. Amurense. Chinese Cork Tree. (L r) Of rapid growth when 

 young, forming a low, round head, but becoming eventually a large tree of 

 spreading form. Foliage is large; flowers greenish white, borne in terminal 

 panicles. Stands drought and heat well. 



PLATANUS. Plane 



P. occidentalis. Buttonwood ; American Plane. (L r) Of broad, round - 

 topped form, and one of the most massive and picturesque of American trees. 

 The bark on the trunk is brown, but upon the branches there are patches of 

 grayish green and sometimes creamy white. Extremely effective in winter, 

 when the varied bark shows strong. A useful field or avenue tree, but for 

 city planting not as desirable as P. orientalis. 



P. orientalis. Oriental Plane, or Buttonwood. (L r) This variety was 

 not widely used here until we called attention to its desirable features in 1892. 

 Similar to P. occidentalis, but superior to it in every way, and better for street 

 planting. One of the finest avenue trees in Europe, and popular in this 

 country not only for its rapid growth and fine head, but also for the fact that 

 it is entirely free from worms or insects. Especially desirable for smoky places. 

 The bark on the trunk and branches is a darker greenish brown than that of 

 P. o$cidentalis, and the leaves are smaller and deeply cut. (See plate on 

 page 64.) 



POPULUS. Poplar 



A class of rapid-growing trees, valuable for quick effects and for screens, while 

 P. Eolkana and nigra, var. fastigiata are extremely useful in formal gardening. 



P. alba, var. Bolleana. Bolle's Poplar. (L r) A variety closely resem- 

 bling the Lombardy Poplar ; of fastigiate form ; bark grayish green ; the upper 

 side of the foliage is dull dark green, while the under side is silvery white. 



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