84 CUMMINGS 



Apothecia brick-colored, brown or blackening. 

 Spores simple. 



Apothecia difform and conglomerate .granulosa. 



Apothecia not difform and conglomerate. 



Thallus white apochroeiza. 



Thallus grayish-green viridescens. 



Spores compound. 



Spores i-2-locular vernalis. 



Spores 4-9-locular hypnophila. 



38. Biatora hypnophila (Turn.) Tuck. \ 



Lecidea hypnophila Turner in Ach. L. U. 199. 1810. 



Biatora hypnophila Tuckerman, Syn. N. A. L. 2: 35. 1882. — Sowerby, 

 Eng. Bot. t. 2217. 



Yakutat (Trelease, 830) ; St. Michael (Setchell) ; Unalaska 

 (Setchell). New to Alaska. 



On bark of living trees (Trelease) ; on earth (Setchell). The 

 thallus of the specimen on bark is not granulate and the apothecia are 

 somewhat larger than most of those in the Tuckerman Herbarium. 

 The spores are usually bilocular. The range of this plant is from 

 Greenland to Florida. 



39. Biatora lucida (Ach.) Fr. 



Lichen lucidus AcHARius, Lich. Suec. Pr. 39. 1798. 



Biatora lucidaYviiES,, L. E. 279. 1831. — Sowerby, Eng. Bot. t. 1^50. 



White Pass (Trelease, 973). New to Alaska. 



Growing on earth. Previously reported from Arctic America. 



40. Biatora vernalis (L.) Fr. 



Lichen vernalis Linn^us, Syst. Nat. 3 : 234. 1767. 



Biatora vernalis Fries, L. E. 260. 1831. — Sowerby, Eng. Bot. /. 843. 



Disenchantment Bay (Trelease, 803c); Orca, 1105 ft. (Trelease, 

 813). Reported by Nylander from Port Clarence under synonym of 

 Lecidea vernalis (L.). 



The specimen from Disenchantment Bay is on the bark of dead 

 shrubs. The thallus is almost obsolete and the apothecia are smaller 

 and more regular than in the specimens on moss. The thallus seems 

 entirely obsolete in the specimen from Orca. This species has been 

 reported from Greenland. 



41. Biatora cinnabarina (Smrft.) Fr. 



Lecidea cinnabarina Sommerfeldt, Vet. Ak. Handl. 115. 1821. 

 Biatora cinnabarina Fries, Lich. Arct. 191. i860. 



Summit of White Pass, 3000 ft. (Trelease, 833) ; Port Wells 



(Trelease, 835^). New to Alaska. 



