254 



C. SKOTTSBERG 



C-. Widespread tropical-subtropical species, probably also occurring in South 

 America (7): Pyrenula aspistea and Kunthii, Graphis intricata and Dumastii, Lo- 

 padiuni leucoxanthum (endem. var.), Parmelia nilgherrensis, Caloplaca subcerina 

 (endem. var.). 



IV. Pacific element. — 7 (4.1 %). 



Pscudoc\phellaria subvariabilis, l^acidia delapsans, Usnea subtorulosa, Calo- 

 placa rubina, Huellia halophila, fernandeziana and halophiloides. 



V. Boreal element. — 16 (9.4%). 



if. luulemic: Leniniopsis polychidioides. 



/;. Not endemic (15): Arthonia cytisi (endem. var.), Gyalecta jenensis, Massa- 

 longia carnosa, Lecidea enteroleuca, latypea and viridans, l^acidia arceutina 

 (endem. var.), Riiizocarjxni obscuratum (endem. var.), Acarospora smaragdula, 

 Lecanora dis{)ersa, chrysoleuca and saxicola. Parmelia pilosella and soredica, Buel- 

 lia concinna (endem. var.). 



VI. Only reported from Juan Fernandez and Rodriguez I. 



Usnea dasy{)ogoides. 



The following 22 endemic species had to be left out, their taxonomic rela- 

 tions being unknown: Microglaena fernandeziana, Porina depressula, fernandeziana 

 and rufocarpella, Ocellularia subdenticulata, Parmeliella symptychia, Pannaria hilaris, 

 Lecidea inactiva, cyanosarca and leucozonata, Catillaria theobromina, Rhizocarpon 

 microspermum, Lecanora Ingae, Parmelia piloselloides, Blastenia fernandeziana, 

 Caloi)laca clandestina, Selkirkii and isidioclada, Buellia siphoniatula, masafuerana 

 and barrilensis, I^yxine curvatula — further, Lopadium sp, and the dubious Blastenia 

 sp. have been excluded. The {percentages were calculated w'ith 170 as a total. 



VI. Fungi. 



Our knowledge of the fungus flora is very limited, and time did not permit 

 us to pay due attention to this group. Of Basidiouiycctcs about 40 species were 

 identified by RoMi:[,i, {2of), including those enumerated by JoilOW (several spe- 

 cies doubtful), luidemic species few. Keisslkr's list of Ascomycetes (759, i6o\ 

 with additions by AkWiDssoN (.?//), short as it is — only 31 species — gives some 

 idea of the relation between the geographical elements. Of the 20 named spe- 

 cies, 9 were known before from S. America (mostly Chile) and I from N. Amer- 

 ica; 5 are wides[oread and 5 endeiuic, one of these belonging to an endemic 

 genus. Liimniiiia scoriadca (Berk.) Keissl. is also known from Chile, Java and New 

 Zealand. Three of the endemic genera of Compositae have their special rusts, 

 the endemic I'lupluasia is attacked by the same Urcdo that is found on two species 

 of sect. Irifidac in Chile, Azara fcy)ia)ideziana by the rust known from A. integrifolia 

 in Chile, and Rubus geoides is accompanied by the same parasite as in P^uegia (j_5(?). 



Of (lasteroDiycetes only 2 named s[)ecies were reported; o^ i\\QSQ lieodictyon 

 jrraci/e l^erk. is of geographical interest: S. America, S. Africa, Australia and New 

 Zealand, the second species was known before from N. America and Samoa [102). 



