64 Ferns in the Nayo River Canyon 



swamps, that every opportunity is afforded for those 

 enthusiasts who are interested in formal variations. 

 I have found it a most interesting region, and I hope it 

 may be visited by other fern collectors. 

 Hingham, Mass. 



Ferns Collected in the Noyo River Canyon, Men- 

 docino Co-, Calif., Aug. 10-14. 



H. H. Tracy 



Botrychium silaifolium Presl. 

 Poly podium vulgar e L. 



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falcatum Kellogg. 



Gy?nnopteris triangularis (Kaulf) Undervv. 

 Adiantum pedatum L. 

 Struthiopteris spicant (L) Scop. 

 Woodwardia radicans (L) Sm. 

 Asplenium cyclosorum Rupr. 

 Dryopteris nevadensis (Eat) Undew. 



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rigida var. arguta (Kaulf) Underw. 



Poly st, 'chum munitum (Kaulf) Undervv. Castella. 



calif ornicum (D. C. Eaton) Underw. 



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aculeatum (Swz) Roth. 



Azollafilicidoides Lam. 



In the Region of Mt. Shasta, Cal., Aug. 19-23. 



Pteridium aquilinum var. pubescens. Castella. 

 Cryptogramma acrodichoides R. Br. Castle Lake. 

 Pellaea brachyptera (Moore) Baker. Castella. 



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densa. Castella. 



Asplenium cyclosorum Rupr. Castella. 



Polystichumcalifoniicum (Eaton) Underw. Trail to 



Mi Eddy. 



munitum (Kaulf.) Underw. Castella. 



Lemmonii Underw. Trail to Mt. Eddy. 

 Lonchitis (L.) Roth. Castle Lake. 



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