THE LICHEN FLORA OF THE SANTA CRUZ PENINSULA 89 



16. LECIDEA GONIOPHILA (Flk.) Schaer. 



Lecidea immersa var. goniophila Floerke, Berl. Mag. 311. 1809. 

 Lecidea goniophila Schaerer, Lich. Helvet. Exsicc. no. 531. 

 Lecidea goniophila Schaerer, Enum. Lich. Europ. 127. 1850. 



Thallus effuse, of small, dingy white crumbs or minute scales, or 

 quite obsolete; KOH pale yellow; CaCl 2 2 very pale reddish. 



Apothecia sessile, medium to small, i to i mm. wide, scattered; 

 disk from a little concave to flat, finally convex, dull black, when 

 wet suggesting red-black; margin concolorous, entire, somewhat 

 turgid, glistening, finally obsolete; epithecium dark bluish-black; 

 paraphyses coherent, hair-like; hymenium about 60 /* high, pale 

 blue with I; hypothecium pale dingy yellow; asci saccate, 20 x 50 /*; 

 spores ovoid ellipsoid, one end often pointed, the episporium dis- 



7 10 

 tinctly double, _ l6 P- 



On comparison with authentic specimens in the museum at Vienna, 

 our plant seems to be closest to the variety atro-sanguinea Hoffm., 

 distinguished by the nearly obsolete thallus and dark red-black 

 scattered apothecia. 



On sandstone near Devils Canon, at an altitude of 2500 feet. 

 Described originally from Germany and found also in France, 

 Switzerland, Austria, and Italy. 



17. LECIDEA AURICULATA DIDUCENS Th. Fr. 



Lecidea auriculata diducens Th. Fries, Lich. Scand. 2: 499. 1874. 

 Lecidea auriculata deducens Jatta, Syll. Lich. Ital. 347. 1900. 



Thallus absent. Apothecia medium to large; disk flat or slightly 

 convex, black; margin persistent, thin to almost turgid, black, at 

 first regular, at last sinuate; epithecium brownish black; paraphyses 

 coherent, their capitate tips brownish black; hymenium colorless; 

 hypothecium dusky; asci clavate, thecium intensely blue with I; 



spores oblong ellipsoid, - /*; according to Fries ' _ /* 



On various rocks and at various elevations, from near sea level 

 ascending to 3000 feet at Castle Rock. 



