-S 3 - 



Mt. Stewart. This is the only locality on record in the United 

 States. It is not rare on the mountains of southeastern Alaska. 



Nepht odium spinulosum dilatatum Baker. SrKKADiNC, wood 

 kkkn. Quite common in rich woods near sea-level, not extend- 

 ing very high on the mountains. 



N. filix-mas Schott. Reported by Suksdorf from the southern 

 part of the State. 



Polystichum munitum Presl, Very common. 



Polysttchum muni turn im iso srrratum 0. C. Eat. Common. 



Polystichum munitum imbricans Maxon. Not common, Wind 

 river. Skamania Co. This is quite different from the type which 

 grows with it, and may he raised to specific rank when better 

 known. 



Polystichum lonckitis Roth. Holly fern. Common in the 



mountains in crevices of rocky ledges. This fern extends far 

 into alpine regions, where finely fruited diminutive plants are 

 seen. 



Polystichum aculeatum CoMforuicum Underw. Eatonville, Mt 



Stewart. Mt. Adams, not common, crevices of rocks. There is 

 no sharp line of demarcation between this and the following 

 varieties : 



Polystichum OCUleutum scopuliuum Colbert. Not uncommon. 

 Smaller and less deeply incised than the preceding species. 



Polystichum aculeatum lobatum Roth. Mt. Tacoma. Rare. 



Polystichum mohroides. Rare. Mt. Stewart, Sandbcrg C-r 

 Leiberg, Elmer; Horse Shoe Basin. Okanogan Co., 1:1 nwr. 



Cystopteris fragilis Bernh, Fkacu.k kekn. Common in the 



mountains, probably reaching a higher altitude than any other 

 fern, with Clwilanlhrs grodllima as a close competitor. 



IVoodsia scopuHua D. C. Eat. Rather common east of the 

 mountains. Mt. Stewart, lilmcr; Skamania Co. mountains. 



IVoodsia Oregaua D. C. Eat. With the preceding. 



MARSIUAC&E. 



Marsilia vestita Hook ft Grew Reported from the southeast- 

 em part of the State, Piper and Suksdorf. 



Azolla Caroliniana Wild. Water kern. Reported by Suks- 

 dorf. 



