SECOND GEOLOGICAL SURVEY OF PENNSYLVANIA - REPORT OF PROGRESS P. ATLAS TO THE COAL FLORA OF PENNSYLVANIA AND OF THE CARBONIFEROUS FORMATION THROUGHOUT THE UNITED STATES BY LEO LESQUEREUX; ©1879

87 Plates and Their Captions: Scans and Webpage ©George Langford III, 2010

Plate LV (links in the Figure numbers point to Lesquereux's descriptions in the text)

Figure Scientific Name Figure Scientific Name 1 - 1a Sphenopteris subalata ? Gein. 6, 6a Sphenopteris elegans, Bt. 2 - 2b Sphenopteris  Brittsii, Sp. nov. 7, 7a Sphenopteris Larischi, Stur. 3 - 4a Sphenopteris goniopteroides, Sp. nov. 8 - 9a Sphenopteris tridactylites, Bt. 5, 5a Sphenopteris Hoeninghausii, Bt.