140 



GEOLOGY OF LA SALLE COUNTY. 



TRIBE II- LKCIDEACEI -CLADONIEI. 



CIvADONIA, Hoffman. Thallus squamulose, rarely 

 o-ranulose or deficient, apothecia variously col- 

 ored, but never black, soon inflated and ceplia- 

 loid, podetia fistulous, funnel or tubulose in 

 shape, often shrub-like. Spores small. 



C. mitrula, Tuckerm. Thallus of small squam- 

 ules. minute, ^reen, podetia short, orranulate, 

 ^daucescent, apothecia confluent, flesh-colored or 

 brown. Tuck, in Fl. Cestrica. 444. On earth 

 and old log's. Common in woods. 



C. pyxidata, L., Fr. Thallus squamulose, podetia 

 cup-shaped, warty, turbinate, ash-colored, the 

 cups cyathiform, often proliferous, apothecia 

 brown. Nyl. Syn. 192. Tuck. Syn. 241. Com- 

 mon on rocks and log-s. 



C. pyxidata, L., Fr., var. Pocillum, Ach. Has 

 foliaceous thallus and reduced podetia. Occurs 

 rarely. Bailey's Falls. 



C. fimbriata, Iv., Fr. Thallus squamulose, but 

 reduced, the podetia elong-ated, often white- 

 powdery, cups with erect marg-ins, apothecia 

 brown. Fr. L. E. 222. Found on rotten logfs 

 and earth in woods. 



C. fimbriata, L., Fr., var. tubaeformis, Fr. Podetia 

 slender, elong-ated, tawny-brown, often with 

 squamules, cups smaller, toothed or entire, pro- 

 liferous, fimbriate, apothecia confluent. On 

 log"s and mossy rocks. Bailey's Falls. 



C. g-racilis, L., Nyl. Thallus squamulose, but 

 often wanting-, ash-g-reen, podetia slender to 

 robust, corticate, polished, proliferous, apothe- 

 cia fuscous. Nyl. Syn. 196. C. ecmocyna, Ach. 

 On earth and rocks. 



