The Virginian Or Swiss Poplar, P. Monilifera Of Michaux, supposed by Gray to be P. monilifera of Aiton, does not apper to have been found in this country by the Michaux' father or son, but they say it is extensively cultivated in Europe, especially in Switzerland.. In France the males only are found. The young shoots are angular. Comparing it with Cottonwood, Mr. Fancourt, director of forests and water-courses, says the leaves are smaller and less distinctly heart-shaped; the young shoots and twigs are smaller and less angular, becoming cylindrical in the third year, and the limbs are less divergent than the cottonwood. It also grows faster, and succeeds in drier soils, hence its popularity in France.* The wood is said to be softer than the cottonwood or, P. Canadensis, of Michaux. Dr. Torrey found it in western New York, on Lake Oneida and Genesee river.†

*Manual of Botany, Asa Gray, 2d Edition, 18S6, His. No. -4, page 419. †Class Book, Alphonso Wood, 41st Edition, 1855, page 507.