Locality
From Hollick (1930) (p. 85)
"Yukon River, north bank, about 6 mIles above Nahochatilton (original No. 3AH16); collected by Arthur Hollick and Sidney Paige in 1903 (lot 3252)."
Description
From Hollick (1930) (p. 85)
"Platanoid leaf of unknown form and dimensions, with a broad, undulate-truncate base, terminating in abruptly constricted, short, rounded alations to the petiole; secondary nervation coarse, widely spaced, irregularly disposed, ascending, the lower two suprabasilar, inequidistant from the base of the leaf and simulating lateral primaries, with branches from the under sides."
Remarks
From Hollick (1930) (p. 85)
"This imperfect platanoid leaf is given a distinct specific name with some hesitation, as in its general characters, so far as they are discernible, it is suggestive of one of the forms of Platanus primaeva Lesquereux (1892) (p. 72, pl. 8, fig. 7) from the Dakota sandstone of Kansas, and of certain forms of Platanus heerii Lesquereux Lesquereux (1874) (p. 70, pl. 9, figs. 1,2) from the same horizon and locality. Possibly it might better be regarded as representing a variety of one or the other of these species, but its apparently unique basilar characters and the impossibility of identifying it satisfactorily with either one of these species to the exclusion of the other have seemed to justify giving to it a distinct specific rank."