254 *^- SKOTTSBERG 



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

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

 padium leucoxanthum (endein. var.), Parmelia nilgherrensis, Caloplaca subcerina 

 (endem. var.). 



IV. Pacific element. — 7 (4.1%). 



Pseudocyphellaria subvariabilis, Bacidia delapsans, Usnea subtorulosa, Calo- 

 placa rubina, Ruellia halophila, fernandeziana and halophiloides. 



V. Boreal element. — 16 (9.4%). 



a. Endemic: Lemmopsis polj'chidioides. 



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

 longia carnosa, Lecidea enteroleuca, latypea and viridans, Bacidia arceutina 

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

 Lecanora dispersa, chrysoleuca and saxicola, Parmelia pilosella and soredica, Buel- 

 lia concinna (endem. var.). 



VI. Only reported from Juan Fernandez and Rodriguez I. 



Usnea dasypogoides. 



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, 

 Caloplaca clandestina, Selkirkii and isidioclada, Buellia siphoniatula, masafuerana 

 and barrilensis, Pyxine curvatula — further, Lopadium sp, and the dubious Blastenia 

 sp. have been excluded. The percentages were calculated with 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 Basidioujycctes about 40 species were 

 identified by ROMELL (207), including those enumerated by Joiiow (several spe- 

 cies doubtful). Endemic species few. Keissler's list of Ascomycetes (jfp, 160), 

 with additions by Arwidsson (7/7), 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 widespread and 5 endemic, one of these belonging to an endemic 

 genus. Liniacinia scoriadea (Berk.) Keissl. is also known from Chile, Java and New 

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

 the endemic Euphrasia is attacked by the same Urcdo that is found on two species 

 of sect. Trifidae in Chile, Azaraferiia7ideziana by the rust known from A. ijiicgrifolia 

 in Chile, and Rubus geoides is accompanied by the same parasite as in Fuegia (jjp). 



Of Gasteromycetes only 2 named species were reported; oi these. Ileodktyofi 

 gracile Berk, is of geographical interest: S. America, S. Africa, Australia and New 

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



