Manuscript entitled, Fossil Flora and Fauna of the Pennsylvanian Period, Will County, Illinois
by George Langford (1876-1964)
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Crossotheca - fertile and sterile, page 57.
Crossotheca boulayi - fertile and sterile; illustrative fossils and sketches by GL.
Crossotheca species; C. sagittata and C. trisecta, photographs by GL.
C. boulayi - fertile.
C. boulayi - sterile. Fertile and sterile.
Crossotheca boulayi - fertile
Crossotheca boulayi - fertile
The fossil illustrated above is now No. 15684 in the Mazon Creek Collection of the Illinois State Museum.
Crossotheca boulayi - fertile and sterile

Crossotheca sagittata - sterile above; fertile below
Crossotheca trisecta - fertile

Note: Looks fertile above ! [GLIII, ed.]

Note: the scan of the original page 57 is here. The original page was letter size but the image may have been cropped slightly.

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