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

Figure Scientific Name Reference 1 - 3 Neuropteris capitata, Lx. F.1, Geol. Rept. of Illinois, iv, Pl. vii, f.1. 4 - 6 Dichtyopteris obliqua, Bunb. 7 - 10 Dichtyopteris rubella, Lx. Ibid., Pl. vii, f.2 - 5. 11 Idiophyllum rotindifolium, Sp. nov.