FLORA OF THE GALAPAGOS ISLANDS. 83 



Fomes, Fries. 



F. lucidus, Fries, Nov. Symb. 61 (1855). Boletus lucidus, Leysser, 

 Fl. Hal. 300 (1783). — Albemarle Isl. : Tagus Cove, Snodgrass & 

 Heller. Further distrib. general. 



Schizophyllum, Fries. 



S. alneum, Schroeter, Pilz. Schlesien, i. 553 (1889). S. commune, 

 Hook. f. (3), 164; Anderss. (1), 123, & (2), 35. Agaricus alneus, L. 

 Sp. 1176 (1753). — Charles Isl.: Darwin ace. to Hook, f., 1. c. 

 Further distrib. general. 



Besides the Favolus and Fomes above mentioned, the collection of 

 Messrs. Snodgrass & Heller contaius a small dried Polgporus and a 

 dried agaric, also alcoholic material of two Agaricini and a small 

 tremelline fundus ; none of these bein<j in condition to determine. 



L1CHENES. 

 By W. G. FARLOW. 



Judged by the collections of previous expeditions as well as those of 

 Messrs. Snodgrass & Heller, the lichen flora of the Galapagos Islands 

 must be striking in appearance and abundant. Naturally the collections 

 include principally the larger and more showy species of foliose and 

 fruticulose habit, which are in most cases identical with species found 

 along the Pacitic Coast of America from California to Chili. Hooker 

 (3), 104, records three lichens collected by Darwin on James Island; 

 Andersson secured nine species from James and Chatham Islands, and 

 Baur six from Charles, Albemarle, Hood, and Chatham Islands. The 

 lichens collected by Hill on the Hassler Expedition were determined by 

 Tuckerman and included three new species, Lecanora glaucovirens, 

 Rinodina mamillana, and Pertusaria albinea, the second species having 

 been found previously in Hawaii. Willey in his Synopsis of the Genus 

 Arthonia, 1890, described an Arthonia niveaivom the Galapagos Islands 

 (collected by Hill), and reported A. platyspeilea Nyl., as well as a 

 third unnamed species. The last was sent to Nylander, but I am unable 

 to ascertain whether it was ever named by him. Apparently a con- 

 siderable number of lichens were collected by the Hassler Expedition, 

 but no list of them was ever made so far as I am aware, and as the speci- 

 mens are scattered through the Tuckerman Herbarium no enumeration 

 could be made without a long search. In the following catalogue refer- 

 ence is made to such of these specimens as have come under my notice. 



