of some Lichens. 259 



Spec. orig. in herb. Conservat. botan. Genevas (vide Tabulas 

 Lecanorce chlaronce). 



Lugano (Helvetia italica). 



Var. coronata, forma UvidUf Mer. 



MereschkovBky, Nachrag z. Flechteul. a. d. Umgeg. Revale, Kazan, 

 1913. 



Apotheciis disco livido. 



Spec. orig. in herb, meo Kazani. 

 Esthlandia : Reval. 



Var. incurvodentata, Mer. 



Mereschkovsky, Schediilse ad Lich. ticin. exsiccatos, in Annuaire d. 

 Conservat. et Jard. bot. d. Geneve, vol. xxi. 1919, p. 152, 



Thallus et margo apotheciorum obscuriores (quam in typo), glauco- 

 cinerei. Apothecia latitudine ut in typo sed minus regularia, 

 margine tenuiore, inciso-crenulato, crenulis incurvo-dentatis, 

 simul ut in Lecanora allopluma. Epithecium granuloaum ut in 

 typo, auperne strato amorpho baud insfcructum. 



Spec. orig. (1) in herb. Conservat. botan. Genevse, (2) in 

 Mereschkovsky, Lich. ticin. exs. no. 16. 

 Geneva (Helvetia). 



Forma convexa^ Mer. 

 Mereschkovsky, I. c. p. 216. 



Thallus cinereus ; apothecia brunneola, oouvexiuscula vel oonvexa, 

 interdum subbotryosa, margine tenui vel subevaneBoente, thallo 

 concolore. 



Spec. orig. in herb. Conservat. botan. Geneva (vide Tabulas 

 Lecanorce chlaronce). 

 Geneva (Helvetia). 



Forma obscura, Mer. 

 Mereschkovsky, I. c. 



Thallo et margine apotheciorum griseo-plumbeis, disco obscure 

 fusco-nigro, apotheciis 0-8-l'6 millim. 



Spec. orig. (1) in herb. Conservat. botan. Geneves (vide 

 Tabulas LecanorcB chlaronce), (2) in herb. Brit. Mus. 

 Geneva (Helvetia). 



17* 



