260 



POPULAR HISTORY OF LICHENS. 



xecjxikrj, the head). Thallus white, leprose, covered with 

 citron-yellow granules, which are frequently aggregated into 

 a verrucose crust. Stipes slender, often elongated, black, 

 frequently of a greenish tinge ; exciple turbinate, black, in 

 young state yellowish- or greenish-pruinose ; spores simple. 

 There are several varieties, depending chiefly on the length 

 and thickness of the stipes, and on the size and the arrange- 

 ment of the thalline granules. 



On the rough bark of trees, and on decayed wood in low- 

 land forests. 



Genus II. CONIOCYBE, AcL 

 Gen. Char. Apothecium spherical, stipitate, having no proper 

 exciple. (Name probably from kovls, dust, in allusion to the pul- 

 verulescent apothecium.) 



1. Coniocybe furfuracea. Thallus sulphur-yellow, le- 

 prose-pulverulent. Apothecia pale brown, stipes black, both 

 at first sulphureous-pulverulent. — There are several varieties, 

 depending on the character of the stipes, which are most 

 frequently elongated and filiform. 



On the bark and roots of trees, on ground and on rocks 

 in shady damp parts of lowland and subalpine woods ; not 

 common. 



