USNM 37559 Platanus alata Hollick  

Notes

Hollick (1930)

Pl. 49 Fig. 2

 

Locality

From Hollick (1930) (p. 85)

"Yukon River, north bank, at Blatchford's mine (original No. 3AH19); collected by Arthur Hollick and Sidney Paige in 1903 (lot 3258) (pl. 49, fig. 3). Yukon River, north bank, at Pickart's mine (original No. 26); collected by W. W. Atwood and H . M. Eakin in 1907 (lot 4638) (pl. 49, fig. 2)."

 

Locality Map

 

Description

From Hollick (1930) (p. 85)

"Plate 49, Figures 2, 3"

"Leaves large, coarse, of unknown form and dimensions, the base extended into long alate borders to the petiole with numerous horizontal veinlets on each side; venation consisting of a strong midrib and two or more pairs of stout, subopposite, widely spaced secondary nerves that leave the midrib at obtuse angles of divergence and soon curve upward, the lowest pair suprabasilar and presenting an appearance of lateral primaries, strongly and irregularly branched from the under side, the lower branches simulating the characters of the horizontal basilar veinlets below."

 

Remarks

From Hollick (1930) (p. 85)

"It is impossible to describe these leaves accurately or satisfactorily, by reason of their fragmentary condition. They evidently, represent a large coarsely nerved species, probably lobed. The two specimens differ considerably in size, but the most striking specific characters are identical to each. They apparently have their nearest analogue in the Miocene species Platanus appendiculata Lesquereux (1878) (p. 12, pl. 3, figs. 1 - 6; pl. 6, fig. 7b)."