Manuscript entitled, Fossil Flora and Fauna of the Pennsylvanian Period, Will County, Illinois
by George Langford (1876-1964)
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Mariopteris obovata, M. nervosa, M. cordato-ovato, M. plumosa, M. decipiens, and M. wilmingtonense, new species, page 69.
Note: the scan of the original page 69 is here.
The original page was letter size but the image may have been cropped slightly. 
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Mariopteris obovata.
 Mariopteris nervosa,
variety oblongata.
 Mariopteris cordato-ovato.
 Mariopteris decipiens and M. plumosa.
 Mariopteris wilmingtonense, new species.
Mariopteris obovata, photograph and sketch by GL, page 69
 Mariopteris nervosa, variety oblongata, sketch and photograph by GL, page 69
 Mariopteris cordata-ovate, sketches and photograph by GL, page 69
 Mariopteris decipiens and M. plumosa, photographs by GL, page 69
 Mariopteris wilmingtonense, new species, photograph by GL, page 69