. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 11 AlET. Alethopteris longchitica. Filicites loh chitica of Sternberg, 7. pCed^. 91 Z^.\ 1824. Flora der Vorwtii; â¢â¢adder's longae ;') Found by Lesquereux (Coal Flora, p. 887, pi. 28, fig 7), in the Sub-con- glomerate; Conglomerate anthracite coals D. E. F.; Bituminous coals A, B, C; that is, it is one of the early ferns of the coal age, at least in America.âX/, X/7, XIILâI. C. White collected it from the Sharon shales {XII) in Lawrence and Mercer
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 11 AlET. Alethopteris longchitica. Filicites loh chitica of Sternberg, 7. pCed^. 91 Z^.\ 1824. Flora der Vorwtii; â¢â¢adder's longae ;') Found by Lesquereux (Coal Flora, p. 887, pi. 28, fig 7), in the Sub-con- glomerate; Conglomerate anthracite coals D. E. F.; Bituminous coals A, B, C; that is, it is one of the early ferns of the coal age, at least in America.âX/, X/7, XIILâI. C. White collected it from the Sharon shales {XII) in Lawrence and Mercer cos. Pa. QQ, 97; QQQ, 53,126,160,197. Note. This fern has received many names: Alethop- teris lonchitidis^ vulga- tior^ sternbergii^ distans (see Geol. Pa. 1858, pi. 12, F2), Pecopteris lon- chitica^ urophylla^ dav- reuxii. Lesq. Coal Flora, page 177. Alethopteris distans was figured by Lesquereux in Geol. Pa. â .^f J 1858, plate 12, F2, which '^L^^IfU3^5^^2 is here added; but he says (Geol. Pa. p. 865) that his specimens might be referred to other species. In A. lonchitica the shape, size and mode of attachment of the leaflets are extremely variable; but they are in general narrower and longer than those of other species, lance-shaped all the way to the pointed end, and difi'erently veined. Three distinct varieties of this species are noted by Lesquereux. Alethopteris muricata. See Pseudopecopteris muricata, XIII. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lesley, J. P. (J. Peter), 1819-1903; Pennsylvania. Board of Commissioners for the Second Geological Survey. Harrisburg, Board of Commissioners for the Geological Survey
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectpaleontology, bookyea
