USNM 37589 Pseudoprotophyllum viburnifolium Hollick  


Hollick (1930)

Pl. 62 Fig. 6



From Hollick (1930) (p. 92)

"Yukon River, south bank, about 3 miles below Seventymile Creek (original No. 3AH4); collected by Arthur Hollick and Sidney Paige in 1903 (lot 3243) (pl. 62, fig. 5). Yukon River, north bank, about 1 mile above Williams mine (original No. 38); collected by W. W. Atwood and H. M. Eakin in 1907 (lot 4641) (pl. 62, fig. 6)."


Locality Map



From Hollick (1930) (p. 92)

"Plate 62, Figures 5, 6"

"Leaves varying in size, about 3 to 5 centimeters in length by 2.5 to 3.8 centimeters in width, ovate (?), peltate at a distance of 1 to 3 millimeters from the blunt, wedge-shaped base; margin denticulate; midrib straight; nervation craspedodrome, pinnate subpalmate; secondary nerves five on each side, subopposite, subparallel, leaving the midrib at angles of about 25°, the lowest ones suprabasilar, branched on the under sides, the branches either forked or simple; basilar veinlets extending from the sides of the midrib at right angles or nearly so, obscure at the base."



From Hollick (1930) (p. 92)

"These leaves are of the same general type as Pseudoprotophyllum venustum, the species last described, with straight, parallel secondary nervation and a short peltate base. The character of the nervation is suggestive of certain species of Viburnum, living and fossil, and of Grewiopsis viburnifolia Ward (1886; 1879) (p. 555, pl. 55, fig. 7; p. 89, pl. 0, fig. 2); but the peltate base precludes the possibility of considering it in connection with either of these genera."