Vol. i] STEWART— LICHENS OF GALAPAGOS ISLANDS 437 



Cladonia (Hill) Wainio emend. 



C. adspersa Floerke — Chatham Isl. : Wreck Bay, abund- 

 ant covering rocks and moist earth on the southeast side of 

 the main mountain at 1900-2000 ft. (No. 426). 



C. ceratophylla Eschw. — James Isl. : James Bay, common 

 on dead logs and other decaying vegetation above 2150 ft. 

 (No. 427.). 



C. fimbriata Hoffm. — Albemarle Isl. : Villamil, common 

 on rocks and dead wood at 500 ft. (No. 428). Chatham Isl. : 

 Wreck Bay, common on moist soil at 2000 ft. with C. adspersa, 

 (No. 429).- 



C. pycnoclada (Gaud.) Nyl. — Albemarle Isl.: Iguana 

 Cove, Snodgrass and Heller; Tagus Cove, in large masses 

 1 ft. or more in diameter, on lava beds above 2500 ft. (No. 

 430). Chatham Isl. : Wreck Bay, forming occasional masses 

 of a considerable size on bushes at about 1700 ft. (No. 431). 



C. sp. — Duncan Isl. : on rocks at 900 ft. (No. 432). 



C. sp. — James Isl. : James Bay, on the trunks of trees and 

 on the fronds of dead ferns at 2800 ft. 



Coenogonium Ehrenb. 



C. sp. — James Isl. : James Bay, common on the trunks of 

 trees at 2000 ft. (No. 433). 



Lecanora Ach. 



L. glaucovirens Tuck. — Galapagos Ids. : Hassler Expedi- 

 tion. Not obtained by any of the later expeditions to these 

 islands. 



L. pallescens Ach. — Barrington Isl. : occasional, encrust- 

 ing the dead branches of trees, (No. 434). Charles Isl. : on 

 the branches of trees at 800 ft. (No. 435). 



L. punicea Ach. — Tower Isl. : common on the trunks and 

 branches of Bursera graveolens, (No. 436). 



Lecidea Ach. 



L. flavo-areolata Nyl. — Galapagos Ids. : Hassler Expedi- 

 tion. Not obtained by any of the subsequent expeditions to 

 these islands. 



