LICHENS OF THE STATE OF WASHINGTON 117 



Caution, 1928, 2033. Pierce Co. : White River Camp, 3000 ft., 1928, 1922. 

 Yakima Co.: Little Naches, 2557 ft., 1171. Olympic Mountains, Pysht 

 River, 1935, A. H. Smith, 1913 (F). Pierce Co.: Ft. Steilacoom, 1912, 

 Foster (F). 



A common Lecanora, often found on drift wood on the ocean beach, 

 but widely scattered through the state. Since I can not separate satisfac- 

 torily Lecanora allophana (Ach.) Rohl. from Lecanora subfiisca (L.) 

 Ach., I recognize but one species, L. suhjusca, thus not following Zahl- 

 bruckner (1^1-1932) here. 



17. Lecanora suhjusca var, argentata Ach. Lichenogr. Univers. 393. 1810. 



Thallus white or pale gray, always thin, smooth at first, finally some- 

 what cracked. Apothecia smaller and less crowded than the species, usually 

 circular and not so irregular in shape as the species ; thalline margin very 

 prominent, spores smaller than in the species, 9,9-14.0 x 4.6-7.0 /t, other- 

 wise like the species. 



On bark only: Grays Harbor Co.: Lake Quinault, 300 ft., 1931, 1208. 

 Pacific Co.: Loomis Lake, 1931, 736. Wahkiakum Co.: Cathlamet, 1940, 

 2917. King Co. : Edgewood, 300 ft., 1940, 3091. Grays Harbor Co. : Monte- 

 sano, 1918, /. M. Grant (WTU). 



No doubt there are other varieties in the state, but this is the only one 

 that seems clearly defined to me at present. 



18. Lecanora symmicta Ach. Syn. Lich. 340. 1814. 

 Lecanora varia var. symmicta Ach. Lichenogr. Univers. 379. 1810. 



Thallus white or pale yellow, crustose, thin or rather thick, smooth, or 

 scurfy and sometimes granulose, rarely disappearing; yellow with KOH, 

 then orange, no color change with CaOClj. Apothecia circular, often 

 crowded then becoming irregular in shape, 0.4-1.0 mm. in diameter, ad- 

 nate; disk pale yellow, reddish, tawny-olive (R), sometimes blackening; 

 thalline margin concolorous with the thallus, thin, finally disappearing ; asci 

 8-spored; spores hyaline, ellipsoid, nonseptate, 9.0-15.0 x 4.0-6.0 //.. 



On old wood: Clallam Co. : Dungeness, 1913, Foster 2560 (F). 



Found only near the ocean in Washington. 



\9. Lecanora varia (Ehrh.) Ach. Lichenogr. Univers. 377. 1810. 

 Lichen varius Ehrh. PI. Crypt. Exs. no, 68. 1785. 



Thallus white, pale yellow, or pale green, crustose, bordered somewhat 

 by a black hypothallus, thin, smooth, or warty, areolate or of distinct gran- 

 ules, sometimes scanty; yellow with KOH, no color change with CaOClg. 

 Apothecia circular, numerous, often crowded, becoming irregular in shape, 

 0.2-0.8 mm. in diameter, adnate to subsessile; disk fawn color (R), yellow, 

 or warm buff (R), naked, flat to convex; thalline margin concolorous with 

 the thallus, thin, erect, entire or crenulate, finally disappearing; asci 

 8-spored; spores hyaUne, ellipsoid, nonseptate, 9.4-14.9 x 4.0-7.0 /x. 



■^ 



■V 



cp* 



