Manuscript entitled, Fossil Flora and Fauna of the Pennsylvanian Period, Will County, Illinois
by George Langford (1876-1964)
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Annularia, A. longifolia, A. radiata, asterophyllites, and A. equisetiformis, page 22.
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Annularia, GL sketch; Figure 1.	Annularia, GL photographs.	Asterophyllites longifolius.	Asterophyllites equisetiformis.
	Annularia longifolia. Brongniart; Fig. 2. Annularia radiata. Brongniart; Fig. 4.	GL photograph, Figure 3.	GL photograph, Figure 5.