386 herre: lichen flora 



end, 9.5 to 1(V broad by 10 to 19. 5^ long. Encrusting bark, mosses, and Sticia 

 (uithraspis, on the trunk of a scrub oak in the chaparral east of Los Gatos, at 

 an altitude of about 2000 feet. Common thruout eastern North America and 

 reported by Macoun from British Columbia, but not otherwise recorded west of 

 the Rocky Mountains. 



LECANORA BADIA (Pers.) Ach. Lichenbadius Persoon, Ust. Ann. Bot. 7: 27. 

 1794. Lecanora badia Ach. Lich. Univ. 407. 1810. Tuck. Synopsis N. Am. 

 Lich. 1: 190. 1882. Thallus small, indeterminate, on a thin black hypothallus; 

 of fissured areoles which pass into squamules with imbricate-areolate surface; 

 color olive brown, usually more or less polished, but rather dull in our specimens ; 

 no reactions to chemicals. Apothecia small to minute, sessile; flat in our speci- 

 mens tho said to become convex; disk blackish brown and reddish-black, with 

 a thick, entire, persistent margin which is concolorous with the thallus, or more 

 often blackens; paraphyses stout, their tips brownish; thecium bluish with I; spores 

 broadly spindle shaped, 3 by 9/*; according to Tuckerman they measure 3 to 5/j. 

 in breadth by 10 to 14/x in length. A few obscure but well marked specimens were 

 collected on rocks at Twin Peaks, San Francisco, at an elevation of about 700 

 feet. Recorded by Tuckerman from the White Mountains, Tadousac, Canada, 

 and Arctic America. Beyond doubt occurring in the northern part of the Sierra 

 Nevada and in the Cascade Mountains. Common enough in northern and central 

 Europe in both alpine and maritime situations. 



