Box 25, Folder 4: Ferns III

Carboniferous

Wilkesbarre, Pa.

Fern

Genus Trichopteris, Hall Fremonts' Report p. 306 (1845)

Frond slender, flexuous, in tufts or single, branching or pinnate; branches long, very slender.

[Sketch-Trichopteris Filamentosa].

Trichopteris filamentosa, Hall-Fremonts' Report p. 306 pl. 2, fig. 6

Frond pinnate or bipinnate; rachis long and almost equally slender throughout; branches numerous, regular, alternate simple, elongated, very slender and flexuous.-the branches are frequently folded back upon themselves, and undulated, lying like the finest thread upon the surface of the stone. This species is very delicate & graceful, and can scarcely be examined without the aid of a magnifier.

Carboniferous!

Lat. 41 1/2 Long 111 in light gray indulated clay