150 HERRE 



2. PARMELIELLA LEPIDIOTA (Sommerf.). 



Lecidea carnosa B. lepidiota Sommerf. Suppl. Fl. Lapp. 174. 1826. 

 Pannaria lepidiota Th. Fr. Lich. Arctoi. 74, i860. 

 Pannaria lepidiota Tuck. Syn. N. Am. Lich. I: 121. 1882. 

 Pannaria lepidiota Cummings and Seymour, Decades of North 

 American Lichens, no. 122, Mt. Tamalpais, Marin Co., Calif. 



Thallus of small squamules with crenate-lobulate, digitate, or 

 dissected margin, laterally expanded or somewhat ascendant and 

 imbricate; color grayish to dingy brownish; squamules more or less 

 dispersed when growing among mosses. 



Apothecia numerous, medium-sized, sessile, from plane becoming 



convex, excluding the thin, entire, proper margin; disk pale to 



dark reddish, brown, and blackening; epithecium pale yellowish; 



paraphyses simple, septate, free; thecium pale bluish, then more or 



less brownish-reddish with I; spores pointed ellipsoid, rather slen- 



9 — 12 



der, fi. A specimen in the Tuck. Herb., collected by 



7-27 



5.5 —8 5 ~ 10 



Bolander at Mission Dolores, has spores — u and f^- 



^ 18 - 21 -^ 27-34 



On earth, mosses, stumps, and rocks, in the mountains. A plant 

 of northern Europe and northern and western America. 



3. PARMELIELLA LEPIDIOTA CORA LLIPHORA (Tuck.). 



Pannaria lepidiota b, coralliphora Tuck. Syn. N. Am. Lich. I: 122. 



1882. 

 Pannaria lepidiota b. coralliphora Macoun, Cat. of Canad. Plants, 



VII. 94. 1902. 



Thallus of small or medium sized squamules which soon become 

 a thick mass of short, stout, irregularly swollen or knotty, coralloid 

 branchlets, leaving no trace of the squamules visible; color dirty 

 brownish-yellowish, grayish, and blackening. 



Apothecia numerous, often densely crowded, medium to large; 

 from plane, circular, and depressed, becoming convex and irregularly 

 crenate; disk red, red-brown, and blackening, soon excluding the 



