entitled, Fossil Flora and Fauna of
the Pennsylvanian Period, Will County, Illinois by George Langford (1876-1964) Return
of Mariopteris leaves, copied from Brongniart by GL, page 68. Note:
of the original page 68 is here.
The original page was letter size
but the image may have been cropped slightly.
To view any of these images at
high resolution (300 dots per inch
instead of 100 as on the full-page images) right-click on the image and
Mariopteris nervosa and M. muricata, copied from Brogniart by GL.