Locality
From Hollick (1930) (p. 64)
"Yukon River, north bank, about 13 miles below Melozi telegraph station (original No. 3AH12); collected by Arthur Hollick and Sidney Paige in 1903 (lot 3249)."
Description
From Hollick (1930) (p. 64)
"Leaves broadly deltoid, denticulate, 4 centimeters in length by 4 centimeters in width across the expanded lower part, rather abruptly narrowed above to an apiculate apex, rounded below to a truncate or broad-cuneate base; nervation tripalmate from the base, campto·craspedodrome; lateral primaries spreading, curved upward, branched from the under sides, the branches subhorizontal, camptodrome a short distance from the margin, with fine nervilles extending to the denticulations; secondary nerves alternate, subtending obtuse angles with the midrib and curving upward."
Remarks
From Hollick (1930) (p. 64)
"This species belongs to the general type of leaf represented by Populus latior Alex. Braun and its varieties, as depicted by Heer (1856) (p. 11, pl. 53, figs. 1, 7; pl. 54, figs. 2, 6; pl. 55, figs. 1 - 4; pl. 56, figs. 1 - 8, pl. 57, figs. 2, 3, 6, 7) from the Tertiary of Switzerland. From these our species differs mostly in the minor characters of smaller size and finer denticulations, and it is impossible to escape the conviction that they are very closely related, specifically as well as generically."