LICHENS 
81 
Alaska Peninsula and Chamisso Island, Eschscholtz Bay, the material 
having been collected by Dr. Bean. Tuckerman’s records are New 
York and New England. The specimens are variously associated 
with Lecanora atrosulphurea and Buellia geographica. 
33. Lecidea nigrocinerea Nyl. 
Lecidea nigrocinerea Nylander, Lich. Pyreno-Orient. 25. in notula. 1891. 
Port Wells (Trelease, 936 in part). New to Alaska. Tuckerman 
makes no record of its occurrence in North America. 
Though this species is new to Alaska, Nylander lists it for Law¬ 
rence Bay, Konyam Bay, and St. Lawrence Island, Siberia. 
34. Lecidea panaeola Ach. 
Lecidea panaola Acharius, L. U. 201. 1810. 
Summit of White Pass, 3000 ft. (Trelease, 950) ; Cape Nome (Set- 
chell) ; St. Michael (Setchell). Also collected by Dr. Bean at Un- 
alaska. 
35. Lecidea tessellata Flk. 
Lecidea tessellata Floerke, D. Lich. 64. 1821. 
St. Michael (Setchell). New to Alaska. 
On rock. Previously reported in America from New England, 
Greenland, Rocky Mts., California, and other localities. 
OTHER ALASKA SPECIES. 
In addition to the species given above, Tuckerman records the occur¬ 
rence of Lecidea enteroleuca muscorum Koerb., L. arctica Sommerf., 
L. assimilata Nyl., all collected by Wright at Bering Strait; the 
last species is credited to St. Lawrence Island and Port Clarence by 
Nylander. Rothrock records the following species as having been 
collected by Dr. Bean, no definite locality being given: L. contigua 
speirea (Ach.) Nyl., L. enteroleuca latypea (Ach.) Nyl., Z. fus- 
coatra Fr. Nylander records fifty-two additional species divided into 
thirteen groups. Many of these sections would be variously distributed 
among different genera by other writers, but in this list I shall retain 
the arrangement made by Nylander. With the exception of L. sub¬ 
duplex Nyl., which was collected on rock at Port Clarence, all the 
members of the first group grow on wood, moss, or on the earth. These 
species might be placed in the genus Biatora. Nine were collected 
at Port Clarence only, namely: L. albohyalina Nyl., L. zneiocarpa 
Nyl., L. internectezzs Nyl., L. insperabilis Nyl., L. denotata Nyl., 
L. sabuletorum Flk., L. syncomista Flk., L. meiobola Nyl., Z. tri- 
plicans Nyl.; seven were found only on St. Lawrence Island, namely : 
