LICHENS 
105 
96. Lecanora cinerea gibbosa (Ach.) Tuck. 
Urceolaria gibbosa Acharius, Meth. Lich. 144. 1803. 
Lecanora cinerea gibbosa Nylanber, Lich. Scand. 154. 1861. — Tuckerman, 
Syn. N. A. L. 1 : 198. 1882. 
Summit of White Pass, 3000 ft. (Trelease, S8S, 851 in part); 
Kadiak (Trelease, 894, 895); Muir Glacier, Glacier Bay (Trelease, 
8S7) ; Cape Nome (Setchell). Buellia gcographica and its variety 
atrovirens are with the specimens from White Pass. Rothrock lists 
this variety as collected by Dr. Bean, but gives no locality. Nylander 
records its occurrence at Konyam Bay, on the Siberian coast of Bering 
Strait. 
97. Lecanora occulata (Diks.) Ach. 
Lichen occulatus Dikson, PI. Cr. Br. 2 : 17. t. 5. f. 5. 1785-1801. 
Leca7iora occulata Acharius, Syn. 148. 1814.—Sowerby, Eng. Bot. t. iSjj. 
Kadiak (Trelease, 1217); Unalaska (Setchell); Cape Nome (Set¬ 
chell) ; Hall Island (Trelease, 1204); St. Matthew Island (Trelease, 
1020). Growing over mosses and other lichens. Reported by Macoun 
from St. Paul Island; by Tuckerman as collected by Wright on the 
islands of Bering Strait; and by Nylander, under the synonym Per - 
tusaria occulata , from St. Lawrence Island. 
A widely distributed northern lichen. 
98. Lecanora tartarea (L.) Ach. 
Lichen tartareus Linn/eus, Sp. PI. 2 : 1141. 1753. 
Lecajiora tartarea Acharius, L. U. 371. 1810.—Sowerby, Eng. Bot. /. /j6. 
Alaska (Dr. Kellogg, no number) ; summit of White Pass, 3000 
ft. (Trelease, 1137); Unalaska (Trelease, 975 ; Setchell); Hall Is¬ 
land (Trelease, 862) ; St. Matthew Island (Trelease, 867, S68, 972) ; 
St. Lawrence Island (Trelease, 1019) ; Cape Nome (Setchell). Most 
of the specimens are sterile. Macoun reports it as “ common and 
variable” on St. George and St. Paul Islands. Rothrock adds Cape 
Lisburne, Unalaska, and the Shumagin group of islands as localities 
where it was collected by Dr. Bean. 
The species, with its varieties, is one of the most abundant of the 
northern lichens, and was formerly of considerable commercial value 
in the coloration of fabrics and the manufacture of litmus. 
99. Lecanora tartarea frigida (L. fil.) Sw. 
Lichen frigidus Linn/eus fil. in Swartz, Meth. Muse. 1781. 
Lecatiora tartarea frigida Swartz, Meth. Muse. t. i.f 4. 1781.— Sowerby, 
Eng. Bot. t. 1879. 
Kadiak (Trelease, 871) ; Hall Island (Coville and Kearney, 2066) ; 
St. Lawrence Island (Trelease, 1018). The specimen from St. Law- 
