USNM 37628 'Rulac' quercifolium Hollick  

Notes

Hollick (1930)

Pl. 77 Fig. 5

 

Locality

From Hollick (1930) (p. 100)

"Chignik Bay, about 2 miles northeast of Alaska Packers Association cannery, Alaska Peninsula (original No. 958); collected by T. W. Stanton in 1904 (lot 3521) (p. 29, fig, la; pl. 77, figs. 4-10; pl. 78, fig. 7b). Port Moller, 2 miles up the canyon west from Mud Bay, Alaska Peninsula (original No. 35); collected by W. W. Atwood and H. M. Eakin in 1908 (lot 5181) (pl. 77, fig. 1). Chignik Lagoon, south side, near entrance, Alaska Peninsula (original No. 49); collected by W. W. Atwood and H. M. Eakin in 1908 (lot 5295) (pl. 77, figs, 2-3)."

 

Locality Map

 

Description

From Hollick (1930) (p. 100)

"Plate 29, Figure la; Plate 77, Figures 1- 10; Plate 78, Figure 7b"

"Leaves or leaflets variable in size and shape, mostly triangular ovate and asymmetric, irregularly crenate-dentate or undulate-dentate, terminating above in a blunt apical tooth, below in a wedge-shaped base; nervation pinnate, craspedodrome; secondary nerves irregularly disposed, diverging from the midrib at various angles, each terminating in one of the marginal irregularities."

 

Remarks

From Hollick (1930) (p. 100)

"These leaves are exceedingly variable, and yet it seems impossible to separate them satisfactorily into distinct species or varieties. In several of the specimens they have the appearance of leaflets attached to a common petiole, and if this were a character of the species, a variation in the size and shape of the leaflets might be expected. If it were not for the apparent compound character of the leaves their general appearance might indicate or suggest relationship to the genus Quercus, but apparently a few of the specimens - those that are symmetrical in outline - represent terminal leaflets, while the others - those that are asymmetric in outline, with irregular margins - represent lateral leaflets, and relationship with the living Negundo aceroides Moench (=Acer negundo Linnaeus) and with the fossil species Negundo triloba Newberry (1868; 1898) (p. 57; p. 115, pl. 31, fig. 5) is strikingly indicated.

Other species that resemble one or another of our specimens, all from Cretaceous horizons, are Myrica thulensis Heer (1874) (p. 107, pl. 31, figs. 1, 1b) from the Atane beds of Greenland; Myrica praecox Heer (1883) (p. 21, pl. 55, fig. 4) from the Patoot beds of Greenland; and Quercus baueri Knowlton (1916) (p. 337, pl. 86, figs. 5, 6) from the Montana group of New Mexico. Heer's figure of Myrica praecox is interesting, especially when compared with our Figure 5 on Plate 77; and if these two figures were the only ones available for comparison they might be regarded as specifically identical."