I02 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. i860. 

 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 — ; CaCl202 — . 



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 

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



2-5 — 5 

 lar, ^ ^ [i- 



24 - 50 



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, f. 1777. 1807. 



Toninia aroniaticaMa.ss . Symm. 54. 1855. 



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



Lecidea aromalica 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. 



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

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



