^8 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



3. Phegopteris dryopteris (L.) Fee, Gen. Fil. 243. 1850-52. 



Pohjpodium dryopteris L. Sp. Fl. 2: 1093. 1753. 



Polypodium dri/op'eris rigidius Hook. Fl. Bor. Am. 2: 259. 1840. 



Type locality: European. 



R.\nge: Alaska to Newfoundland, south to Oregon, Colorado, and Virginia. 



Specimens examined: Clallam County, Earner 2813; Whidby Island, Ga/r/npr 372; Port 

 Ludlow, Binns, June 18, 1889; Silverton, Bouck in 1899; Snoqualinie, Parker, August, 1892; 

 Skagit Pass, Lake & Hull 659; Stevens Pass, Sandberg d' Leiberg 778, Whited 1436; Horse- 

 shoe Basin, Elmer 732; without locality, Vasey in 1889; Davis Ranch, Kreager 212, 185; 

 lone, Kreager 404; Mount Carlton, Kreager 275. 



Zonal distribution: Mostly Canadian. 



ADIANTUM. 



1. Adiaiitum pedatuni aleuticuni Rupr. Beitr. Pflanzenk. Ru.ss. Reich. 3: 49. 1845. 



Maiden-iiair fern. 



Adianturn pedatum rangiferlnuin Burgess, Proc. Roy. Soc. Canada 4"^: 11. 1SS7. 



Type locality: Unalaska. 



Range: Alaska to Quebec, south to California. 



Speci.mens examined: Clallam County, Elmer 2809; Mount Stuart, Sandberg d- Leiberg 

 820: Fish Lake, Dunn, August 8, 1900; Horseshoe Basin, Lake d: Hull 661: Elmer 723; 

 west Klickitat County, Suksdorf 20^0; without locality, Vasey in 1889; Seattle, Piper. 



Zonal distribution: Humid Transition to Canadian. 



PTERIDIUM. 



1. Pteridium aquilinum pubescens Uiulcrw. Our Native Ferns ed. 6. 91. 1900. 



Bracken. 



Pieris aquilirui lanuginosa Bong. .Mem. Acad. St. Petersb. VI. 2: 176. 1832, not Pteris 

 lanuginosa Bory 1810. 



Type locality: Sitka. 



RjVnge: Alaska to California and Arizona. 



Specimens examined: Fish Lake, Dunn, August, 1900; Wenache Mountains, Whited 

 1416; Turawater Canyon, Sandberg d' Leiberg 520: Wawawai, Beaftie, July 12, 1902; Clea- 

 lum Lake, Cotton 1852. 



Zonal distribution: Humid Transition, al)undant; Arid Transition, occasional. 



PELLAEA. 



Veins manifest; leaves oblong, pinnate, the segments oblong, obtuse, 



not crowded 1. P. occidenfalis. 



Veins concealed; leaves ovate, tripinnate, the linear acute segments 



crowded 2. P. densa. 



1. Pellaea occidentalis (E. Nelson) R^^dberg, Mem. N. Y. Bot. Gard. 1: 466. 1900. 

 Pellaea atropurpurea occidentalis E. Nelson, Fern Bull. 7: 30. 1899. 



Pellaea pumila Rydberg, Mem. N. Y. Bot. Gard. 1: 4. 1900. 

 Type locality: " In a canon in the Laramie Hills," Wyoming. 

 Range: South Dakota to Wyoming and Washington. 

 Specimens examined: West Klickitat County, 5»AWo// 2083. 

 Zonal distribution: Doubtful. 



2. Pellaea densa (Brack.) Hook. Sp. Fil. 2: 150. 1858. 

 Onychium densum Brack, in Wilkes Exped. 16: 120. t. 13. 1854. 

 Type locality: "Oregon, on the banks of Rogue's River." 

 Range: British Columbia to Wyoming and California. 



Specimens examined: Clallam County, Elmer 2810: Mount Stuart, Elmer 1105; Sand^ 

 berg d' Leiberg 821; Stehekin River, Whited 1385; Blue Mountains, Horner 526; without 

 locality, Vasey in 1889. 



Zonal distribution: Probably lludsonian. 



