Plate XXII. FILICALES: NEUROPTERIDAE 

 and LINOPTERIDAE 



1-3. Neuropteris capitata Lesquereux. 



1. Ultimate pinnule from Mazon Creek, U I Coll. No. P 1291. 



2-3. From Mazon Creek, U C Coll. No. 32033 and No. 32084. 



4. Linopteris neuropteroides (Gutbier) Potonie, from Mazon 

 Creek, U I Coll. No. P 1292. 



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