USNM 37324 Phegopteris alaskensis Hollick  


Hollick (1930)

Pl. 2 Fig. 5



From Hollick (1930) (p. 38)

"Chignik Lagoon, south side, near entrance (original No. 49); collected by W. W. Atwood and H. M. Eakin in 1908 (lot 5295)."


Locality Map



From Hollick (1930) (p. 38)

"Plate 2, Figures 4a, 5"

"Size and shape of frond not known; pinnae alternately arranged, almost at right angles to and along a stout rachis, which they apparently overlap with their broad, alate, slightly auriculate bases; lamina wrinkled or wavy, especially near the obscurely crenulate margins; nervation consisting of a well-defined midrib with pinnately arranged forked veins that occupy the wrinkles and extend to the margin. These fragmentary but well-defined specimens are somewhat suggestive of Phegopteris jorgenseni Heer (1882) (p. 32, pl. 35, figs. 1 - 3) and Phegopteris grothiana Heer (1883) (p. 3, pl. 43, figs. 12, 13) from the Patoot beds of Greenland, and the general resemblance that exists between them all appears to indicate a generic relationship, although the characters of the nervation, as far as they are discernible, are more like those of Dryopteris than Phegopteris."



From Hollick (1930) (p. 38)

"There is also more or less of a general resemblance between our figures and those of Cladophlebis columbiana Dawson (1893[1894]) (p. 55, pl. 5, figs. 4, 5) from the Cretaceous of Vancouver Island, but Dawson's figures are too poorly defined for any but surficial comparison. The bases of the pinnae in our specimens appear as if connected with one another and decurrent on the rachis; but close examination indicates that this appearance is due to pressure of the overlapping parts, and that each pinna is separate and distinct."