USNM 37506 Populites? captiosus Hollick  

Notes

Hollick (1930)

Pl. 36 Fig. 2

Venation detail

 

Locality

From Hollick (1930) (p. 66)

"Yukon River, north bank, about 12 miles below Melozi telegraph station (original No. 20); collected by W. W. Atwood and H. M. Eakin in 1907 (lot 4634)."

 

Locality Map

 

Description

From Hollick (1930) (p. 66)

"Plate 36, Figure 2"

"Leaf apparently ovate, about 12 centimeters in length by 11 centimeters in width, with a broad, slightly curved, entire, truncate base; margin remotely and bluntly undulate-dentate; nervation tripalmate, craspedodrome; midrib straight, conspicuously thickened below; secondary nerves subparallel, four or more on each side, opposite or approximately so, extending upward at acute angles of divergence from the midrib; lateral primaries subopposite, suprabasilar at a distance of 6 millimeters from the base of the leaf, with
branches on the under sides that extend almost horizontally to the margin, the upper ones occasionally forked toward the extremities, the lower one on each side branched on the under side; basilar veinlets sim"ple, two on each side, leaving the midrib at right angles and ultimately bending downward."

 

Remarks

From Hollick (1930) (p. 66)

"This leaf is apparently inequilateral, as indicated by the more oblique angles of divergence of the secondaries on one side of the midrib than on the opposite side. It apparently belongs in the same generic category with the other palmately nerved leaves here referred to Populites, and it also has a superficial resemblance to Platanus and Cissus. An imperfect specimen, however, may present a deceptive appearance, and hence the generic designation is questioned."