LICHENS 85 



The specimen from Port Wells is only a fragment on the bark of 

 a coniferous tree associated with Opegrapha and Heterothecium. 

 The species has been reported from Labrador and Greenland, but not 

 from the western coast. 



42. Biatora viridescens (Schrad.) Fr. 



Lichen viridescens Schrader in Gmel. Syst. Nat. 2 : 1361. 179 1. 

 Biatora viridescens Fries, Act. Acad, Sc. Stockh. 268. 1822. 



Farragut Bay (Trelease, number lost) . New to Alaska. 



On bark of trees and shrubs. Apothecia smaller and more regular, 

 thallus smoother and not so well developed as in the specimens on 

 dead wood in the Tuckerman Herbarium. A widely distributed 

 species. 



43. Biatora granulosa (Ehmb.) Mass. 



Lichen granulosus YMKEiiB^KG, Crypt. N. 145. 1785. 



Biatora granulosa MASSAi^OiiGO, Ric. 124. 1852. — Sowerby, Eng. Bet. /. Jl8j. 



St. Matthew Island (Trelease, 852). New to Alaska. 



On dead wood. The apothecia are rather smaller and more nu- 

 merous and the thallus less developed than in the specimens in the 

 Tuckerman Herbarium. Previously reported from Arctic America, 

 Canada, New England, Rocky Mts., Oregon, and other localities. 



44. Biatora apochrceiza (Nyl.). 



Lecidea apochrosiza Nylander, Flora 443. 1885. 



Hall Island (Trelease, 863a; Coville and Kearney, 206c). 



Growing over mosses. Reported from St. Lawrence Island by 

 Nylander. 



A specimen numbered 822, collected on dead wood at Sitka, may 

 possibly be referred to Biatora varians. The spores are immature 

 and the determination is therefore uncertain. 



ADDITIONAL ALASKA SPECIES. 



The following species of Biatora have been reported from Alaska 

 which do not occur in the Harriman collection : B. cuprea (Som- 

 merf.) Fr. and B. artyla (Ach.) Tuck., collected by Wright on the 

 Islands of Bering Strait; B. laureri (Hepp.) Tuck., collected in 

 Alaska by Hall; B. milliaria Fr., Shumagin group of islands, and 

 B. sanguineo-atra Fr., on logs at old Sitka, collected by Dr. Bean; 

 and B. sphceroides (Dicks.) Tuck., collected by Wright on the 

 islands of Bering Sea, and, under the synonym Lecidea sphceroides^ 

 reported by Nylander from Port Clarence. 



