1913] HOWE—ALASKAN LICHENS 497 
7. CLADONIA CORNUTA (L.) Schaer.—Atka, June 27, 1911, 
1500 ft. 
8. CLADONIA DECORTICATA (Flk.) Spreng.—Atka, June 27, 
IQII, 1500 ft. 
9g. STEREOCAULON TOMENTOSUM Fr.—Unalaska Is., Chernofski, 
June 9, 1911, tundra, 150 ft. 
10. STEREOCAULON PASCHALE (L.) Ach.—Atka Is., June 22, 
Ig11r, tundra, 1ooo ft. 
LECANORIACEAE 
11. LECANORA OCCULATA (Dicks.) Ach.—Little Kiska, June 19, 
1gi1; Atka, June 26, rort. 
12. LECANORA SAXATILIS (L.) Schaer (L. muralis).—St. Paul 
Is., June 1911; three specimens. 
13. LECANORA CASTANEA (Hepp.) Th. Fr.—Amaknak Is., 
June 6, 1911, 1200 ft. 
14. LECANORA CARTILAGINEA Ach.—St. Paul Is., June 1911. 
15. OCHROLECHIA GEMINIPARA Th. Fr.—Nome, July 14, 1911. 
16. OCHROLECHIA UPSALIENSIS Nyl.—Nome, July 4, 1911. 
17. CALOPLACA CALOPISMA (Ach.) Th. Fr.—Chernofski, June 
IO, IQII. 
PELTIGERIACEAE 
18. PELTIGERA CANINA (L.) Hofim.—Amaknak Is., Little 
Kiska Is., June 19, Ig11, ‘tundra, 1000-1500 ft.”; June 6, 1911, 
Tooo ft., “growing on ground just above and below snow line”; 
Akun Is., June 4, 1911, “dead logs”; Atka Is., June 13, 1911, 
“tundra”; four specimens, three of which represent the variety 
Spongiosa Tuck. 
19. NEPHROMA ARCTICUM (L.) Fr.—Nome, June 14, 1911. 
20. Lobaria (Sticra) oregana (Tuck.), comb. nov.—Ketchi- 
kan, May 26, 27, 1911, “thick fir growth.” 
UMBILICARIACEAE 
21. GyRopHorA (UmBILicarIA) arctica Ach.—Atka Is., June 
27, 1911, “rocks, 1000 ft., snow near by”; two specimens. 
PARMELIACEAE 
22. PARMELIA saxaTiLis Ach.—Unalaska Is., Chernofski, 
June 9, 191r, “on rocks along the beach,” two specimens; St. 
Paul Is., July 6, 1911, “‘rocks near beach,” one specimen. 
