Mr. James Gordon writes to the Journal of Forestry that the female flowers of Pines are of " branch origin," while the male flowers are of "leaf origin;" and one of his arguments is that as the female flower remains on till it forms a perfect and mature cone, and the other is thrown off - "disarticulates," - as soon as there is no more use for it, it proves one to be a branch, and the other a leaf. But arbor vitse, taxodium and other things "disarticulate" branchlets, and are not therefore leaves. Most American mor-phologists, we believe, would say all structure was of " leaf origin".