Plate XXIX. FILICALES: PECOPTERIDAE 



1. Pecopteris pseudovestita White, from Mazon Creek, U C Coll. 



No. 32043. 



2. Pecopteris vestita Lesquereux, from Mazon Creek, U C Coll. 



No. 32044. 



3. Pecopteris vestita Lesquereux, from Mazon Creek, x 1/2, U C 



Coll. No. 32045. 



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