102 HERRE 



Rare; on earth in rock crevices near the summit of Black Moun- 

 tain, at an elevation of 2700 feet. A lichen of alpine and arctic 

 Europe; in North America recorded from Greenland and the moun- 

 tains of the Pacific Coast. 



3. TONINIA CAULESCENS Anzi. 



Toninia caulescens Anzi, Cat. Lich. Prov. Sondr. 67. 1860. 

 Lecidea squalida caulescens Tuck. Syn. N. Am. Lich. II: 64. 1888. 



Thallus tawny brown, squamulose, the turgid squamules convo- 

 lute, scattered or usually crowded and imbricate, extending down- 

 ward in stout brownish stems; KOH ; CaCl 2 O 2 . 



Apothecia closely sessile, deeply concave, from small and round to 

 large and lobulate; disk dull black, papillate; the prominent turgid 

 margin persistent, at first regular, round, becoming at length sinuate 

 on the larger apothecia; epithecium brown, with KOH violaceous 

 brown; hypothecium dark reddish brown; paraphyses separate, the 

 brown tips abruptly capitate; hymenium pale yellowish, intense blue 

 with I, soon changing to a sordid vinous red; asci spatulate, almost 

 equaling the hymenium in height; spores fusiform, 4 to 8 (10?) locu- 



On earth and rocks at 50 to 100 feet above the sea, Point Lobos, 

 San Francisco, and on earth above the sea a few miles south of Point 

 San Pedro. 



A lichen of alpine and arctic Europe and of the Pacific coast of the 

 United States. 



4. TONINIA AROMATICA (Sm.) Mass. 



Lichen aromaticus Smith, Eng. Bot. pi. 25, /. 1777. 1807. 



Toninia aromatica Mass. Symm. 54. 1855. 



Lecidea aromatica Ach. Lich. Univ. 168. 1810. 



Lecidea aromatica Tuck. Syn. N. Am. Lich. II: 131. 1888. 



Thallus effuse, of minute squamules or crumb-like granules, mostly 

 contiguous, imbricate, irregularly and confusedly rugose, forming a 

 dark greenish black or dusky gray crust. 



Aoothecia sessile, often clustered, f to i mm. wide; disk black, at 

 first slightly concave with a thin, entire or crenulated margin, soon 



