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 XLIV (links in the Figure numbers point to Lesquereux's descriptions in the text)
Figure
Scientific Name
1, 1a, 3
Pecopteris erosa, Gutb.
2, 2a
Pecopteris cristata, Gutb.
4, 4a
Pecopteris dentata, Brgt.
Lesquereux - Plate XLIV