The published statements as to the distribution of Ampelopsis cordata are not uniform. Riddell, in his synopsis of the Western Flora, says it occurs in the Alleghany Mountains west to Arkansas. Torrey and Gray, in the Flora of North America, Vol. 1, under the name of Vitis indivisa, give its distribution as Southern States west to Louisiana and Arkansas. Wood using the same name in his class-book, says Southern States to St. Louis. In Gray’s Manual, last edition, the plant is given under the name of Cissus ampelopsis with the statement that it occurs in Virginia to Illinois and Southward. The occurrence as noted by Britton and Brown in the Illustrated Flora, makes the species still more decidedly southern, namely, southern Virginia to Florida, west to Illinois, Kansas and Texas. Prof. Stanley Coulter, in a Catalogue of the Flowering Plants and Ferns indigenous to Indiana, published in 1899 in the 24th Annual Report of the Department of Geology and Natural Resources of Indiana, says this species occurs “in the central and southern counties of Indiana in swamps and moist woods.” In the fifth edition of Gray’s Manual the range of this Ampelopsis (under the name of Vitis indivisa) was given as “West Virginia, Ohio and southward.” In answer to an inquiry as to what in the Gray Herbarium was perhaps the basis for the reference to the Ohio distribution, Mr. Merritt L. Fernald kindly wrote me as follows:—“I find in the herbarium a specimen of Cissus ampelopsis marked ‘Ohio’. It is one of the old Torrey and Gray specimens and no further data are given.” Dr. Millspaugh lists this species as Cissus ampelopsis in the Flora of West Virginia and adds on the authority of Mertz and Guttenberg that it also occurs in Ohio, near Wheeling. Upon inquiry of Supt. Mertz, I learn that his notes of work upwards of twenty years ago contain no mention of this species at Wheeling, West Virginia, or at Bellaire, Ohio. He further informs me that what was taken for this Ampelopsis at Bellaire was probably Vitis cordifolia, three forms of which were found growing on the islands of the Ohio River near Wheeling. Of these he adds in a letter to the writer, “I think we probably decided that one was V. indivisa; but I feel sure that it was not and you are probably the first to find it in Ohio.” It will be observed that the distribution as noted by Professor Stanley Coulter extends its range still further northward than my Ohio station. It is likely that its occurrence still further northward in Ohio may be detected by assiduous collectors.