62 LICHENS OF THE STATE OF WASHINGTON 



granules minute, forming a rather thin, smooth crust, bordered and crossed 

 by black hypothalline lines. Apothecia circular, often clustered, minute, 

 0.1-0.3 mm. in diameter, adnate; disk pale yellow, reddish brown, or black, 

 when black, pruinose, flat to convex ; proper margin thin, soon disappear- 

 ing ; hypothecium hyaline ; paraphyses conglutinated ; asci 8-spored ; spores 

 hyaline, ovoid-ellipsoid, nonseptate, 8.0-15.0 x 5.0-6.0 /x. 



On bark or old wood: Pacific Co. : Long Beach, 1931, 465. Wahkiakum 

 Co. : Cathlamet, 1940, 2901. Pierce Co. : White River Camp, 3900 ft., 1940, 

 3093. Yakima Co. : Dewey Lake, 4800 ft., 1940, 2786. 



29. Lecidea decipiens (Ehrh.) Ach. Meth. Lich. 80, 1803. 



Lichen decipiens Ehrh. Hedw. Descr. and Adumbr. Muse. Frond. 2 :7. 



1789. 



Biatora decipiens (Ehrh.) Fries. 



Psora decipiens (Ehrh.) Hoffm. 



Thallus flesh color (R), coral red (R), brick red, or orange shades, 

 squamulose, squamules thin, medium size, smooth, sometimes pruinose, 

 round, irregularly lobed, concave, undulate, closely attached to the sub- 

 stratum, edges white; below white. Apothecia marginal or in center of 

 squamules, 0.4-1.0 mm. in diameter, sessile; disk brown or black, convex; 

 proper margin paler, hardly visible, soon disappearing; hypothecium pale 

 brown; paraphyses conglutinated, tips umber; asci 8-spored; spores hya- 

 line, oblong-ovoid, nonseptate, 12.0-15.0 x 6.0-7.0 fx. 



On soil: Washington Territory, Cascade Mountains, 1883, Brandegee 

 16 (T). 



A very showy lichen, easily recognized if one is fortunate enough to 

 find it, but not common in the state. 



30. Lecidea deniissa (Rutstrom) Ach. Meth. Lich. 81. 1803. 

 Lichen demissus Rutstrom, Spicil. PI. Crypt. Suec. 8. 1794. 

 Biatora atro-riifa (Dicks.) Fries. 



Psora demissa (Rutstrom) Stein. 



Thallus grayish white or grayish brown, squamulose, squamules thin, 

 small, round, irregularly lobed, edges crenate, imbricated, squamules some- 

 times running together into a rough warty crust on a black hypothallus, 

 closely attached to the substratum. Apothecia circular, often clustered and 

 confluent, 0.3-1.0 mm. in diameter, immersed to adnate; disk reddish brown 

 or black, usually flat becoming convex; proper margin darker and soon 

 disappearing; hypothecium hyahne; paraphyses thick, tips brown; asci 

 8-spored; spores hyaline, ovoid-ellipsoid, nonseptate, 12.0-14.0 x 6.0-8.0 [x. 



On soil : Washington Territory, Cascade Mountains, 1883, Brandegee 

 79 (F). 



31. Lecidea globifera Ach. Meth. Lich. 213. 1803. 

 Biatora globifera Ach. 



Psora globifera (Ach.) Mass. 



