Plate XVIII. FILICALES: NEUROPTERIDAE 



1-3. Neuropteris rarinervis Bunbery. 



1. From Mazon Creek, U C Coll. No. 32088. 



2. From Mazon Creek, x 1/2, U I Coll. No. P 1288. 



3. From Braidwood, U C Coll. No. 32026. 



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