OSTRYA CARPINIFOLIA (_syn O. vulgaris_).--Common Hop Hornbeam. South
Europe, 1724. A much-branched, round-headed tree, with cordate-ovate,
acuminate leaves. Both this and the following species, by reason of the
resemblance between their female catkins and those of the Hop, and
between their leaves and those of the Hornbeam, have acquired the very
descriptive name of Hop Hornbeam. This is a large-growing tree,
specimens in various parts of the country ranging in height from 50 feet
to 60 feet.
O. VIRGINICA.--Virginian Hop Hornbeam. Eastern United States, 1692.
Resembles the latter, but is of smaller growth, rarely exceeding 40 feet
in height. They grow fairly well in almost any class of soil, and on
account of the long and showy catkins are well worthy of cultivation.