Maeyland Geological Survey 



167 



Species with which compared 

 Occurrences Indicated by circles 



Baiera cretosa Schenk. 



Sphenopteris species of Heer. 

 Sphenopteris flabellina Sap. 



I Acrostichopteris flmbriata Knowlton. 



< Acrostichopteris RufEordi Seward. 



( Sphenopteris flabellisecta and tenellisecta of Saporta. 



Sphenopteris cuneifida, dissectiformis, tenuiflssa and flabellina Sap. 



Sphenopteris debilior Saporta. 



Phlebomeris species of Saporta. 

 Dicksonia bellidula Heer. 



Pecopterls species of Heer, Alethopteris cycadina Schenk. 



Cladophlebis Nathorsti Yokoyama. 



Dryopteris montanense Knowlton. 



Sphenopteris species of Saporta. 

 Sagenopteris Mantelli (Dunker) Schenk. 

 Sagenopteris Mantelli (Dunker) Schenk. 



Tempskya Schimperi Corda. 



Oleandridium Beyrichii Schenk and Oleandra arctica Heer. 



Adiantites lanceus Yokoyama. 



Equisetum ushimarense Yokoyama. 



