Locality
From Hollick (1930) (p. 96)
"Yukon River, north bank, about 12 miles below Meiozi telegraph station (original No. 3AH11); collected by Arthur Hollick and Sidney Paige in 1903 (lot 3248)."
Description
From Hollick (1930) (p. 96)
"Leaf trilobate, 12 centimeters in length by about 12 centimeters, in width across the expanded lower part; middle lobe largest, rounded, terminating in a blunt acuminate apex; lateral lobes relatively small, short, obtusely triangular, rounded below to the broad, truncate, peltate base; margin undulate-dentate; nervation craspedodrome, tripalmate below, pinnate above, weak, irregular; lateral primaries suprabasilar, with two relatively strong branches on the under sides and several weak ones on the under and upper sides toward the extremities, all more or less branched and connected by finer cross nervation; basilar veinlets hori"This species, represented by a single specimen, is similar in outline to P. latifoliwm, the species last de- scribed, but the nervation is more irregular and much thinner or weaker throughout. In fact, the irregulart !.1ttenuated character of the nervation and the way in which it thins out tbward the extremities of its rami-
fications constitute a unique feature.zontal from the sides of the midrib, forked and bent downward toward the extremities, and finer nervilles radiating from the base of the midrib to the margin."
Remarks
From Hollick (1930) (p. 96)
"This species, represented by a single specimen, is similar in outline to P. latifolium, the species last described, but the nervation is more irregular and much thinner or weaker throughout. In fact, the irregular attenuated character of the nervation and the way in which it thins out toward the extremities of its ramifications constitute a unique feature."