Fink: Lichen Distribution in North America 297 



Acarospora fuscata (Schrad.) Arn. 



Islands of Puget Sound, 1906, rocks. 

 Acarospora glaucocarpa (Wahl.) Ach. 



San Juan Island in Puget Sound, 1906, limestone. 

 Acarospora glehosa Koerb. 



Boone County, Iowa, 1903, sandstone. 

 Acolium tympanelhim (Ach.) DeNot. 



Islands of Puget Sound and near Glacier, British Columbia, 1906, bark 

 and decorticate wood. Thallus often poorly developed. 

 Amphiloma lamiginosum (Hoffm.) Nyl. 



San Juan Island in Puget Sound, 1906, and Madison County, Kentucky, 

 1908, various shaded substrata, in moist places. 

 Arthonia impolita (Ehrh.) Borr. 



San Juan Island in Puget Sound, 1906, red cedar wood. 

 Arthopyrenia gemmata (Ach.) Mass. 



Stewart's Island in Puget Sound, 1906, maple bark. 

 Arthopyrenia glabrata (Ach.) 



San Juan Island in Puget Soun^, 1906, bark. 

 Arthopyrenia quinqueseptata (Nyl.) Fink. 



Boone County, Iowa, 1903, bark. 

 Bacidia akompsa (Tuck.) Fink. 



Islands of Puget Sound, also Longmire Springs, Washington, Coll. E. T. 

 Harper, 1906, bark. 

 Bacidia dryina (Ach,). 



Islands of Puget Sound, 1906, cedar bark, 

 .Bacidia schweinitzii (Tuck.) Fink. 



Missouri and Arkansas, Coll. Colton Russell, 1899, bark. 

 Biatorella davits (Lam. & DC.) Th. Fr. 



Colorado mountains. Coll. L. H. Pammel, 1904, rocks. 

 Biatorella geophana (Nyl.), 



Islands of Puget Sound, 1906, moist clay. 

 Biatorella pruinosa (J. E. Smith) Fink, 



Cole County, Missouri, Coll. Colton Russell, 1898, shaded rocks. 

 Biatorella simpler; (Dav.) Br. & Rostr. 



Iron County, Missouri, Coll. Colton Russell, 1898, shaded rocks. 

 Biatorina bahusiensis (Blomb.). 



Near Laggan, Alberta, Coll. Carolyn Crosby, 1901, rocks. 

 Biatorina chalybeia (Borr.) Mudd. 



Near Minneapolis, Minnesota, 1896, limestone. 

 Biatorina cyrtella (Ach.) Nyl. 



Near Duluth, Minnesota, 1898, poplar bark. 

 Biatorina laureri (Hepp.). 



Islands of Puget Sound, 1906, bark. 

 Biatorina prasina (Fr.) Fink. 



Shushan, New York, Coll. Frank Dobbin, 1907, bark. 

 Biatorina tricolor (With.) Fink. 



Islands of Puget Sound, 1906, bark and wood. Inconspicuous and seldom 

 collected. 



