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21970. PISTACIA CHINENSIS. Chinese Pistache. From Shantung, China.
A very promising shade tree for those sections of the United States where
the summers are warm and the winters only moderately cold.  The young
leaves are carmine-red, and the autumn foliage gorgeous scarlet and
yellow. The wood, which is decidedly heavy and not often attacked by
insects, is used in the manufacture of furniture. From the seeds an oil
is obtained which is used for illuminating purposes.  The young, partly
opened, foliage buds, boiled like spinach, are sometimes eaten by the
Chinese. (Chico, Calif.)

65032. PLOCAMA PENDULA. From the Canary Islands. Collected by David
Fairchild, Agricultural Explorer. A low-growing shrub which reaches
about 3 feet in height, and is of graceful weeping habit, suggesting a
miniature weeping willow.  It is drought-resistant, and suitable for
cultivation in southern California. It will not survive hard frosts.
(Chico, Calif.)

62110. POPULUS EUGENEI. From Kew, England. Presented by Dr. A. W. Hill,
Director, Royal Botanic Gardens. An unusually large and vigorous poplar.
The tree originated at the nursery of Messrs. Simon and Louis near Metz,
Lorraine about 1832, as a seedling, and was still standing in 1904, when
it measured 150 feet in height, with a trunk 38 feet in circumference at
the base. Probably hardy throughout the United States. (Bell, Md.)

62111. POPULUS GENEROSA. Poplar. From Kew, England. Presented by
Dr. A. W. Hill, Director, Royal Botanic Gardens, Kew. This hybrid poplar
is, according to its originator, Augustine Henry, intermediate in
characters between its parents (Populus angulata and P. trichocarpa.)
The leaves are coarsely serrate and pale gray beneath. The tree is a
rapid grower and unusually vigorous. For trial throughout the United
States. (Bell, Md.)

68170. POPULUS MAXIMOWICZII. Poplar. Presented by the Arnold Arboretum,
Jamaica Plain, Mass. A very fast-growing and stately tree native to
China. It will succeed in the coldest portions of the United States on
the poorest and driest soils.  At all times it makes phenomenally rapid
growth. Its leaves, which are handsomely crinkled like those of Rosa
rugosa appear very early in the spring and remain longer in the autumn
than those of almost any other deciduous plant. The tree is not attacked
by borers or leaf-eating insects; it is highly recommended as a shade
tree and windbreak generally, especially for the northwest plains country.
(Bell, Md.)

63756. POTHOS SEEMANNI. Araceae. From Canton, China. Collected by
F. A. McClure, Agricultural Explorer. An herbaceous, climbing plant which
adheres closely to the bark of trees by means of woolly, adventitious
roots.  After attaining sufficient length to reach the lower branches of
the tallest trees, it hangs in beautiful, long festoons. It is a fine
ornamental chiefly on account of its splendid foliage; the flowers are
rather inconspicuous. For trial in southern Florida. (Bell, Md. )
        