LICHENES EXOTIGI. ^73 



TRIB. XX. — CETRARIEI. 



Gen. L. — Cetraria Acli. pr. p., Nyl. 



517. C. islandica Ach., Nyl. Syn. l, p. 298, tab. VIII, flg. 32, ubi definitur; Eyium. 

 Lich. p. 100; Flora 1869, p. 443, thallus K =, CaCl =. — Lichen islandicus L. = In Asia 

 boreali (Sibiria, Lkh. Middend. p. 2; Lawrence ins., Lich. Fr. Behr. p. 44) et meridionali 

 (mont. Himalaya). — In America boreali (Port-Clarence, Lich. Fr. Behr. p. 62), septen- 

 trionali (Garolina et Virginia), tropica in alpinis et australi (Gap Horn, Lich. N. Zeland. 

 1888, p. 144). — EtiaminEuropa. 



— Var. platyna Nyl. Syn. I, p. 299, ubi deflnitur; Cetraria platyna Acb. =Occurritcum 

 lypo. 



518. C. crispa Ach., Nyl. Lich. Fr. Behr. pp. 7, 19 et 53. C. islandica var. crispa 

 'Nyl. Syn. I, p. 299, ubi deflnitur; Enum. Lich. p. 100; F/ora 1869, p. 443, reaclio thalli 

 est eadem ac in prœcedente. = In Asia boreali (Sibiria, Lich. Middend. p. 2; Laurencebay, 

 Konyambay, etc.). — In America boreali (Port-Glarence, Uch. Fr. Behr. p. 61) et tropica 

 (Nova Granata, Prodr. FI. N. Gran. éd. l^'p. 21 et éd. S"" p. 16). — Etiam in Europa. 



— F. 1. inermis Nyl. Lich. Fr. Behr. p. 19, ubi definitur. = In Asia arctica 

 (Konyambay). 



— F. 2. subtubulosaFr., Nyl. Syn. I, p. 299, ubi definitur; F/om 1869, p. 443, eadem 

 thalli reactio. = In Asia boreali (Lawrencebay et Behring ins., Lich. Fr. Behr. pp. 7 et 53). 

 — In America boreali. — Etiam in Europa boreali. 



519. C. Delisei Nyl. Lich. Lapp. Orient, p. 114; Flora 1869, p. 444, thallus K =, CaGl 

 T. C. islandica var. Delisei Schœr., Nyl. Syn. I, p. 299 et Lich. Scand. p. 79, ubi defi- 

 nitur. = In Asia boreali (Sibiria, Lich. Middend. p. 4; Lawrence ins., Lich. Fr. Behr. 

 p. 44). — Etiam in Europa, 



— Var. 1. fastigiata Nyl. in Norriin Lapp. p. 323 ; Flora 1869, p. 443, eadem thalli 

 reactio. = In Asia boreali (Konyambay, Lich. Fr. Behr. p. 19). — Etiam in Europa 

 boreali. 



— Var. 2. submedia Nyl. in Norriin Lapp. p. 323. = In Asia boreali (Behring ins., 

 Lich. Fr. Behr. p. 53. — In America boreali (Port-Glarence, lÂch. Fr. Behr. p. 61). — 

 Etiam in Europa boreali. 



520. C. nigricans Nyl. Syn. I, p. 299 et Flora 1880, p. 392, ubi definitur; Flora 1869, 

 p. 443, thallus K =, GaGl ^. = In Asia boreali (Sibiria, Lich. Middend. p. 4; Konyam- 

 bay, etc., Lich. Fr. Behr. pp. 19, 27, 44 et 53). — In America arctica (Port-Glarence, Lich. 

 Fr. Behr. p. 61). — Etiam in Europa (Lapponia). 



521. C. aculeata Fr., Nyl. Syn. I, p. 300, ubi definitur; Enum. Lich. p. 100 et Flora 

 1869, p, 443, thallus K ^, GaGl ^. = Latius distribuitur quamC. islandica et inregionibus 

 minus frigidis descendit. — In America boreali (Port-Glarence, ZicA, Fr. Behr. p. 61), meri- 

 dionali (Ghili, At^i^Y. i^/. chil. p. 179) et antarctica (Fuegia, Lich. Fueg. p. 5; ins. Maclo- 

 vianis; freto Magellanico, ubi viget forma peculiaris in Nyl. Syn. loc. citât, definita). — 

 Etiam in Europa. 



— A^ar. acanthella Ach., Nyl. Syn. I, p. 300, ubi definitur; Flora 1869, p. 443, eadem 

 thalli reactio. = In America australi (Philip Bay, Lich. Fueg. p. 5). — Etiam in Europa. 



522. C. epiphorella Nyl. Lich. Fueg. p. 20 et apud Gromb. Falk. isl. p. 227, ubi defi- 

 nitur. = In America australi (Sandy Point; freto Magellanico, Lich. N. Zeland. 1888, 

 p. 144). 



523. C. odontella Ach., Nyl. Syn. I, p. 301, ubi definitur; Enum. Lich. p. 100; Flora 

 1869, p. 443; thallus K = GaGl =. ^InAmeiica boreali ex Nyl. Enum. Lich., sed Tuc- 



NouvELLES ARCHIVES DU MUSÉUM, 3" séi'ie. — II. 35 



