Locality
From Hollick (1930) (p. 64-65)
"Yukon River, north bank, at Pickart's mine (original No. 26); collected by W. W . Atwood and H. M. Eakin in 1907 (lot 4638)."
Description
From Hollick (1930) (p. 64-65)
"Leaf about 10 centimeters in length by 14 centimeters in width, orbicular-reniform, with a rounded, curved, truncate base and broadly triangular-dentate margin; nervation pinnate-tripalmate, craspedodrome; midrib straight, thickened below; secondary nerves opposite, leaving the midrib at acute angles of divergence on one side and at obtuse angles on the other, the lowest pair suprabasilar, simulating lateral primaries, with branches on the under sides."
Remarks
From Hollick (1930) (p. 64-65)
"This species is very close, specifically, to certain of the forms of Populites elegans Lesquereux (1868; 1892; 1893) (p. 94; p. 47, pl. 48, fig. 3; p. 10, pl. A, fig. 2) from the Dakota sandstone of the western United States, and differs far less from the broad, dentate form represented by Lesquereux's Figure 3, Plate 48, than many of the other diverse forms included by Lesquereux in the species. In fact, it appears impossible that all
these forms can be specifically identical. The exaggerated curvature of the secondary nerves on the right side of our specimen is apparently due to distortion and hence is not recognized as a normal character of the species."