I 82 HERRE 



Thallus sub-determinate or effuse, thin, uneven, usually scanty, 

 limited more or less by the black hypothallus; of small areoles, or 

 distinct, unequal granules; color a pale yellowish, whitish or greenish; 

 KOH yellow; CaCl 2 2 -. 



Apothecia small, numerous, often crowded, plane or plano-convex, 

 concolorous or pale yellow; margin thin, entire or crenulate, finally 

 excluded; thecium bluish then greenish-bluish with I; paraphyses 



slender, free or sub-conglutinate; spores ellipsoid, -" /* 



9 12.25 



Common in the foothills on the bark of trees and on fences. On 

 leaves of Sequoia sempervirens, Santa Cruz Mts., Farlow in Tuckerm. 

 Herb.; on cones of Pinus insignis, Bolander. 



A plant of very wide distribution. 



17. LECANORA VARIA S^EPINCOLA E. Fries. 



Lecanora varia sapincola E. Fries, Lich. Europ. Reform. 158. 



1831. 

 Lecanora varia s&pincola. Tuck. Syn. N. Am. Lich. I: 192. 1882. 



(Not Lecanora symmicta s&pincola of Crombie, British Lichens, 



434. 1894.) 



Thallus effuse, of small, crumb-like granules or leprose-pulveru- 

 lent; contiguous or more or less scattered and thin; dirty grayish, 

 greenish, or green-gray; KOH darkens the thallus; CaCl 2 2 . 



Apothecia very numerous, minute to small, biatorine; the pale 

 entire margin visible only in early stages, soon excluded by the usu- 

 ally swollen, finally irregular disk; dark red-brown and blackening; 

 paraphyses narrow, conglutinate to somewhat free, jointed, the 

 brownish tips slightly thickened; epi thecium brown; hypo thecium 

 clear; hymenium bluish or blue with I; spores ellipsoid, 



4-5 - 5 . ^ 

 7-5 - 12.5 



On old fences in the foothills. A lichen of dead wood and fences, 

 common in Europe and America. 



I refer our material here with much doubt, but it is not to be 

 placed under any other species I find described. 



