526 FLOKA. ANTARCTICA. \Fuegia, the 



Variat colore superficiei superioris flavido v. caesio, nunc glauco-virescente ; foliis planis v. sublacunosis ; 

 maiginibus loborurn planis v. elevatis, lsevibus v. crispatis, nudis v. granulis corniculatis dense obsitis. 



This, and the Nephroma arctica, are the most noble foliaceous Lichens of the Antarctic regions. The present 

 is particularly so, the brightness of its golden thallus, and its great abundance on the sea-ward edges of the 

 Fuegian forest, rendering it a very conspicuous plant. It is also found in Chiloe and Juan Fernandez, and 

 in the Old World it inhabits New Zealand. Though an ally of S. aurata, it is perfectly distinct from that 

 plant, especially in the granular and not powdery margins of the thallus, also in size and general features. It is 

 certainly as well marked as any species of Lichen confined to the southern latitudes. 



Plate CXCV. Fig.U. — 1, plant in usual state; 2 and 3, portions of thallus; 4, plant as covered with 

 granular tubercles of the natural size ; 5, granular surface of thallus ; 6, apothecia ; 7, under surface of thallus j 

 8, lamina proligera ; 9, spores : — all highly magnified. 



3. Sticta oryynuea, Ach.; Fl.Antarct. Pt. 1. p. 197. 



Hab. Staten Land, (M. Ac/iariics) . Strait of Magalhaens, D' Urville. 



This species was not seen at Cape Horn or the Falkland Islands : but we have specimens from Chiloe and 

 Juan Fernandez. It is singular that a Lichen, which abounds in Lord Auckland's group and Campbell's Island, 

 should not be also found at Cape Horn; and that the S. endochrysa of Cape Horn is found in New Zealand, 

 but does not spread so far south as Lord Auckland's group. The much greater cold of Fuegia might be prejudicial 

 to the S. orygmaa, but there is no apparent reason for S. oidoclirym being foreign to Lord Auckland's group. I 

 suspect that the Acharian plant from Staten Land, referred to as S. orygmaa, is the S.endocltrym, Del; and that the 

 specimens were received from Menzies. 



There are very remarkable differences between the Lichens of those two divisions of Antarctic botany which 

 are here adopted : the most salient features of which consist in the presence or abundance of the following 

 Lichens in only one of the divisions. 



Lord Auckland's Group and Campbell's Island. Cape Horn. 



Umea melaxantlia. 



Ramalina infiata. Ramalina scopulorum. 



Stereocaulon ramulosum. Cetraria Mandica. 



Argus. Nephroma polaris. 



Sticta orygnima. Stereocaulon corallinum. 



Menziesii. Sticta endochrysa. 



Delisea ? crocata. 



faveolata. Freycinetii. 



This remarkable predominance of certain very widely distributed forms in the southern extremity of the 

 Western Hemisphere, and the absence of the same in similar positions in the Eastern, admit of no explanation, 

 beyond what climate will afford. 



4. Sticta olroluta, Ach. ; Lick. Univ. p. 452 (vix Delise). S. hirsuta, Mont, in Toy. au Pole Sud, 

 Bot. Crypt, p. 188. 1. 15. f. 2. 



Hab. Staten Land; Menzies. Strait of Magalhaens ; M.llombron. 



Of this we possess an authentically named specimen, gathered and labelled by Menzies himself : in it the 

 cyphelke are pale yellow ; as Montague describes those of his S. hirsuta. M. Delise does not seem to have understood 

 the species, and describes apparently a very different plant under this name. It is closely allied to the S. comet ia 

 of Peru, in which the apothecia are fringed with much longer hairs, and also to the S. Humboldtii, Hook., another 

 Peruvian plant with fringed apothecia ; but both of these have white cyphellae. 



Sticta obwluta is also a native of South Chili and Juan Fernandez. 



