Bd. IV: II) THE LICHENS. 33 



Cetraria islandica (L.) Ach. — Tu. Fr. Lieh. Scand. p. 98. 



Literaturen Darbish. Fram, p. 37. — Hook. Fl. Ant. II, p. 523. 

 Distribution: North and south America and Asia; Europe. 



Locality: South Georgia* (16). — Over earth, sterile. 



Cetraria ulophylla ACH. — Tu. Fr. Lieh. Scand. p. 107. 



Literature: Platysma ulopkyllum ACH. — Cromb. Fueg. p. 228. — Nyl. Fueg. p. 25. 



Cetraria saepincola (Ehrh.) Ach. v. ehlorophylla (Humb.) Schaer. — Th. Fr. Lieh. Scand. p. 107. 

 Distribution: Southern America; Europe. 



Locality: Tierra del Fuego (1). — Between moss and lichens on Nothofagus 

 betuloides. 



Letharia (Th. Fr.) A. Zaiilbr. 

 Letharia Poeppigii (Nées et Flot.) Nyl. — Nvl. Syn. Lieh. I, p. 275. 



Literature: Chlorea Poeppigii (Nées et Flut.) Nyl. — Cromb. Fueg. p. 227. — Nyl. Fueg. p. 5. — Nyl. 

 Syn. Lieh. I, p. 275. 



Evernia magellanica Mont. — Hook. Fl. Ant. II, p. 522. — MÜLL. Gaz. I, p. 54. 



Usnca Poeppigii (Ni.es et Flot.) Wain. — Wain. Belg. p. 12. 

 Distribution: South America only. 



Locality: Tierra del Fuego (1, 2, 7). — Sterile between moss, on trees. 



Usnea (Dill.) Acii. 



Usnea cavernosa TUCK. — TUCK. N. A. L. I, p. 43. 



Literature: Wain. Belg. p. 10. 



Usnea lacunosa Nyl. — Cromb. Fueg. p. 227. — MÜLL. Mag. p. 151. — MÜLL. Speg. No. 19 

 (= Letharia Poeppigii sec. MÜll.-Arg.). — Nyl. Fueg. p. 25. 

 Distribution: North and south America; Australia and southern Asia. 



Locality: Tierra del Fuego (4). — ■ On trees, sterile. 



Usnea xanthopoga Nyl. — HUE Lieh. Extra. No. 122. 



Literature: Nyl. Fueg. p. 4. 

 Distribution: Southern America only. 



Localities: Tierra del Fuego (i, 4). — On trees, sterile. 



Neuropogon Nées et Flot. 



Neuropogon melaxanthum (ACH.) Nyl. — Nyl. Syn. Lieh. I, p. 272. 



Literature: Darbish. Fram, p. 38. — Darbish. Nat. Ant. p. 7. — Müll. Austr. -Georg, p. 323. 



Usnea melaxanlha Ach. — Darbish. Ork. p. 2. — Hook. Fl. Ant. II, p. 519. — Hue Charcot 

 No. 5. — Müll. Mag. p. 152. — Müll. Speg. No. 22. 



Neuropogon sulphur tu s KOENIG. — Hellb. N. Z. p. 21. 



Usnea snlphurea (Koenig) Th. Fr. — Th. Fr. Lieh. Ant. p. 208. — Wain. Belg. p. II. — Zahi.br. 

 Gauss, p. 49 & 52. 



Usnea barbata Ach. v. snlphurea (?). — Hook. Fl. Ant. I, p. 194. 



> Neuropogon Taylori Nyl.>. — Blackman Ant. p. 320 (sec. Darbish. Nat. Ant. p. 7). 

 Distribution: Arctic, alpine and southern America; Australia and New Zealand. 



5 — 112S6Ö. Schwedische Südpolar-Expidilion içoi — iqoj. 



