USNM 37494 Hicoria duriuscula Holiick  


Hollick (1930)

Pl. 34 Fig. 1



From Hollick (1930) (p. 68)

"Coal mine in Coal Bluff, Herendeen Bay, Alaska Peninsula (original No. 31); collected by W. W. Atwood and H. M. Eakin in 1908 (lot 5185)."


Locality Map



From Hollick (1930) (p. 68)

"Plate 34 Figure 1"

"Leaflet inequilateral, lanceolate-ovate, narrowed at the base, coriaceous or rugose; midrib slightly curved at the base; secondary nerves numerous, the lower ones opposite, the upper ones subopposite, leaving the midrib at acute angles of divergence, curving upward along the borders, where they merge into and connect with the tertiary nerves that extend to the denticulations in the upper part of the margin."



From Hollick (1930) (p. 68)

"This leaf agrees almost exactly with the description and figure of Juglans coloradensis Lesquereux MS., Knowlton (1917) (p. 255, pl. 36, fig. 1) from the Vermejo formation of southeastern Colorado. Our specimen is apparently somewhat broader, but as both specimens are imperfect an exact comparison is not possible. The margin in each is denticulate, at least in the upper part, although in Knowlton's figure the denticulations are indicated as somewhat larger than in ours. In the discussion of this species Knowlton suggests comparison with certain figures of the leaves of Juglans rugosa Lesquereux (1878) (p. 286, pl. 54, figs. 5, 14?; pl. 50, figs. 1 - 9; pl. 51, figs 1, 2, 4) but the comparison does not appear to be well chosen, as most of the leaves of this species are quite different in shape, and all have entire margins."