Plate XXVI. FILICALES: NEUROPTERIDAE 



1-4. Neuropteris decipiens Lesquereux. 



1. Cyclopteroid leaf, from Mazon Creek, x 6/5, U I Coll. No. P 



1297. 



2. From Mazon Creek, x 9/10, U I Coll. No. P 1298. 



3. Cyclopteroid leaf, from Mazon Creek, U C Coll. No. 32036. 



4. From Mazon Creek, U I Coll. No. P 1299. 



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