=Oriental Walnuts.=--How few or many species of the walnut are indigenous to China, Korea, Japan and other Oriental countries it would be very difficult to determine, with our present limited knowledge of the forests of that part of the world. The few botanists who have had opportunities of studying the flora of those regions do not agree as to names or number of species of the genus. Loureiro, in his "Flora Cochinchinensis" (1788), names three species as indigenous to China, viz.: _Juglans regia_ in the northern part, but this is now considered very doubtful; _Juglans Camirium_, Rhumphius, a medium-sized, heart-shaped nut, the trees found in the forests, and also under cultivation; _Juglans Catappa_, a large forest tree in the Cochin China mountains, with oblong, edible nuts, with husk and shell of nuts of a reddish color. Many years later Siebold describes a Japan walnut under the name of _Juglans Japonica_, and still later the Russian botanist, Maxiomowicz, renames this, in honor of Siebold, _Juglans Sieboldiana_, and describes another native of Japan as _Juglans cordiformis_. But prior to any of the authors named, Thunberg had described a Japan walnut under the name of _Juglans nigra_, probably the same as Loureiro's species, with reddish husk, but as this name had already been given to an American species it had to be dropped. Maxiomowicz also describes what he supposed to be a distinct species, found in the forests of Mandshuria under the name of _J. Mandshurica_ (1872), but it is doubtful if it is anything more than one of the many wild forms of the species found widely distributed over eastern Asia. The red or black fruited walnut of Loureiro (_J. Catappa_), and Siebold's black walnut (_J. nigra_), are probably the same as the Ailantus-leaved (_J. ailantifolia_), recently described in Nicholson's "Dictionary of Gardening," London, Eng., 1884, the origin of which is said to be uncertain. It is _Juglans Mandshurica_, Maxim, in Alphonse Lavallée's "Catalogue of Arboretum Segrezianum." As described in this work, the young fruit is violet-red, and produced in long pendulous clusters, the latter being one of the marked characteristics of these Oriental walnuts. But whether we admit that there is but one or a dozen species of these Eastern walnuts, it cannot be of any special interest to the practical nut culturist, for to him their economic and commercial value is of more importance than scientific nomenclature. Up to the present time we have only succeeded in obtaining two species of these walnuts, or perhaps only one species and one variety; but we certainly have two distinct forms, both coming from Japan, and distributed under the names given them by Maxiomowicz, viz.: