LICHENS OF THE STATE OF WASHINGTON 55 



5. Lecidea atrobrunnea (Ram.) Schaer, Lich. Helvet. Spicil. 134. 1828. 

 Lichen atrobrunneus Ram. in Lam. and DC. Fl. Franc. 3rd ed., 2 :367. 

 1805. 



Thallus chestnut-brown or reddish brown, squamulose-areolate, areoles 

 smooth and shiny, turgid, tough, flat to convex, lobed, scattered or imbri- 

 cated, edges wavy and ascending, marginal areoles often elongated. Apo- 

 thecia circular, 0,5-1.0 mm. in diameter, sessile; disk black, concave to 

 slightly convex ; proper margin black, thick, prominent, becoming flexuose ; 

 hypothecium brown; paraphyses coherent, tips colored; asci 8-spored; 

 spores hyaline, ellipsoid, nonseptate, 9.9-12.0 x 3.0-4.3 fi. 



On rock: Yakima Co.: gulch near Naches, 1350 ft., 1931, 903. Wash- 

 ington Territory, Brandegee 48 (F). 



6. Lecidea auriculata Th. Fr. Nov. Act. Reg. Soc. Sci. Upsal. ser. 3, 

 3:313. 1861. 



Thallus grayish white or pale brown, rimose-areolate, thin, rough. 

 Apothecia circular, at length variously lobed and irregular, 0.3-1.0 mm. in 

 diameter, adnate; disk black, flat to convex; proper margin concolorous 

 with the disk somewhat raised, finally disappearing; hypothecium pale 

 brown or olive brown ; paraphyses coherent, tips darkened ; asci 8-spored ; 

 spores hyaline, oblong to ellipsoid, nonseptate, 7.0-11.4 x 3.8-4.0 (i. 



On rock: Columbia Co.: Blue Mountains, 5000 ft., 1931, 1627. 



7. Lecidea auriculata var. diducens (Nyl.) Th. Fr. Lich. Scand. 499. 1874. 

 Lecidea diducens Nyl. Flora 48:148. 1865. 



Thallus absent. Apothecia in scattered crowded groups, circular to 

 irregular perhaps due to crowding ; spores small and poorly developed. 



On rock: Chelan Co.: Beaver Summit, 2800 ft., 1931, 1340; butte near 

 Chelan, 2000 ft., 1931, 1355. Okanogan Co.: near Tonasket, 2000 ft., 1931, 

 1385. 



8. Lecidea contigua (Sm.) Fries Nov. Sched. Critic. 14. 1827. 



Lichen contiguus Sm. in Sm. and Sowerb. Engl. Bot. 12; tab. 821. 1801. 



Thallus gray, grayish white, or greenish gray, rough and warty, becom- 

 ing rimose-areolate, irregularly spread over the substratum, sometimes thin 

 and scattered. Apothecia circular, 0.4-1.3 mm. in diameter, immersed to 

 adnate ; disk black, flat to convex, rarely faintly pruinose ; proper margin 

 black, thin, raised, finally disappearing; hypothecium thick, dark brown; 

 paraphyses slender, subcoherent, dark or olivaceous brown at the tips ; asci 

 8-spored; spores hyaline, rather large, ellipsoid, 13.2-23.1 x 6.0-9.0 /i. 



On rock : Whatcom Co. : Ruth Mountain, 6800 ft., 1928, 1946. Pierce 

 Co. : Mt. Rainier, Paradise Valley, 5500 ft., 1928, 1939; Berkeley Park, 

 6000 ft., 1940, 3028. Ferry Co. : Mt. Gibraltar, 3100 ft., 1940, 3153. Wash- 

 ington Territory, Suksdorf 288 (S). 



