FERNS AND FERN ALLIES 379 



12. Gymnopteris triangularis (Kaulf.) Underwood. 



EASTWOOD, Bot. Gaz. 33: 129. 



Ceropteris triangularis UNDERWOOD, Bull. Torr. Bot. Cl. 29 : 630. 



Cape Nome. 



13. Adiantum pedatum Linnaeus. 



BRITTON, 8. BRITTON & BROWN, i : 27. CHRIST, 140. CLUTE, 245. 

 COOLEY, 182. DAVENPORT, 607. EATON, i : 136, 139. HOOKER & 

 BAKER, 126. KAULFUSS, 202, 279. KURTZ, 426. MAXON, List 631. 



MlLDE, Fil. 31. ROTHROCK, 460. TURNER, 82. VASEY, 2 1 8. 



Adiantum pedatum aleuticum LEDEBOUR, 4 : 526. MOORE, Index 33. 



RUPRECHT, Symb. 117. 

 Adiantum boreale PRESL, Tent. Pterid. 158. 

 ? Adiantum capillus vencris BESSEY, Science, n. s. 13 : 833. 



Glacier Bay (Trelease, 2694) ; Chilkat region; Sitka (Evans, 201 ; 

 Evermann, 234) ; Kadiak; Unalaska (Harrington in 1871-2; Kincaid, 

 100) ; Attu. 



14. Pteridium aquilinum pubescens Underwood. 



UNDERWOOD, 91. 



Pteridium lanuginosum CLUTE, Fern Bull. 8 : 38. 



Pteris aquilina CAMPBELL, 399. LEDEBOUR, 4 : 524. MILDE, Fil. 45. 



ROTHROCK, 460. RUPRECHT, Symb. 114. TURNER, 82. 

 Pteris aquilina lanuginosa BONGARD, 176. COOLEY, 182, 246. EATON, i : 



264. KURTZ, 426. 

 Pteris lanuginosa CLUTE, Fern Bull. 8 : 37. 



Juneau; Chilkat region; Sitka (Evans, 784); Hot Springs, Bara- 

 nof Island (Trelease, 2688). Abundant from the Puget Sound region 

 to about Sitka, but developing late, and hence not commonly collected. 

 Professor Underwood calls my attention to the fact that this form does 

 not depart in pubescence very far from the common form of the brake 

 in Europe. 



CHEILANTHES ARGENTEA (Gmel.) Kuntze. 



DAVENPORT, 607. GILBERT, 15. GRAVES etal., Linn. Fern Bull. 3: 7. 



MAXON, List 633. UNDERWOOD, 97. 

 Pteris argentea LEDEBOUR, 4: 524. ROTHROCK, 460. TURNER, 82. 



Apparently first ascribed to Russian America by Pallas, as collected 

 by Steller, and copied by recent writers, of whom, however, Daven- 

 port questions it, and Turner states that it evidently rests on error. 



15. Cryptogramma acrostichoides Robert Brown. 



BRITTON, 8. BRITTON & BROWN, i: 28. BONGARD, 176. COOLEY, 182, 



246. COVILLE & FUNSTON, 349. DAVENPORT, 607. EATON, 2 : IOO. 



FLETT, Fern Bull. 9 : 33. MAXON, 637 ; List 633. MOORE, Index 



263. 



Cryptogramma acrostichoides foveolata GILBERT, 16, 252. 

 Cryptogramma crispa HOOKER, 2 : 264. LYELL, 126. 



