132 CRYPTOGAMIA. 



Nephroma arcticum, Fr. Summ. Fl. Scand. p. 101 j Tuckerm. Lich. exs. n. 62; Nyl. 

 Euum. 1. c. p. 101. 



Hab. Orange Harbor, Fuegia; fertile. 



2. Nephroma ljsvigatum, Ach. 



Nephroma Icevigatum, Ach. Syn. p. 242. 

 Peltidea laevigata, Sommerf. Suppl. Lapp. p. 125. 

 Nephromium Icevigatum f Nyl. Enum. Gen. 1. c. p. 101. 



Hab. Summit of Pico Ruivo, Madeira ; fertile. Also among Mosses, 

 Hawaii ; but the specimen very imperfect. 



13. PEL TIGER A, Hoffm. 

 1. Peltigera aphthosa, (Linn.) Hoffm. 



Lichen aphthosus, Linn. Fl. Suec. n. 1098; & Auctt. 



Peltigera aphthosa, Hoffm. Fl. Germ. p. 107 ; Fr. Lichenogr. p. 44 ; Tuckerm. Lich. 



exs. n. 9, & 102. 

 Peltidea aphthosa, Ach. Lichenogr. p. 516 ; Syn. p. 238. 



Hab. Port Discovery, Puget Sound. 



2. Peltigera canina, (Linn.) Hoffm. 



Lichen caninns, Linn. Fl. Suec. n. 1100; Sm. E. Bot. t. 2299. 



Peltigera canina, Boffin. I c. p. 106; Fr. Lichenogr. p. 45; Lich. Suec. n. Ill; 



Tuckerm. Lich. exs. n. 103. 

 Peltidea canina, Ach. Syn. p. 239, excls. var. y, & q. 



Hab. Puget Sound, Oregon. 



3. Peltigera rufescens, (Neck.) Hoffm. 



Lichen rufescens, Necker Meth. 79, cit. Ach. ; E. Bot. t. 2300. 



