282 Prof. Dr. C. Meresclikovskj's Diagnoses 



Var. anguslata, forma nuda, Mer. 



Merescbkovsk}^, Schedulfe ad Lich. ticin. exsiccatos, in Aunuaire du 

 Conservat, et Jaid. bot. d. Geneve, vol. xxi. 1919, p. 192. 



Thallo fusco, nudo vel hinc inde leviter pruiuoso. 



Spec. orig. (1) in herb, meo Knzani (numeros.), (2) in herb. 

 Conservat. botan. Genevse, (3) in Mereschkovsky, Lich. ticin, 

 exi». no. 70. 



Rossia. Helvetia. 



Var. argyphcea, forma centrofusca, Mer. 



Merescbliovsky, Scbedulse ad Licb. Ross. exs. Kazau, 1913 (no. oO) ; 

 Hedwigia, 1919, p. 230. 



Thallus albo-suffusus, centrum versus sordide griseo-fuscescens, 

 epruinosus, laciniis interdum leviter angustioribus ; apothecia ut 

 in var. argyphcea. 



Spec. orig. (1) iu herb, nieo Kazani, (2) in Mereschkovskj, 

 Lich. Ross, cxsicc. no. 50: 

 Rossia jMidia (Kazan). 



Forma granulata, Mer. 



Mereschkovskj, Coutrib. fl. licbeuol. envir. Kazau, Hedwigia, 1919, 

 p. 231. 



Thallus albo-pruinosus, granuloso-diffractus, laciniis periphericis vix 

 ullis vel brcvissimiB. 



Spec. orig. (numeros.) (1) in lie'rb. meo Kazani, (2) in herb. 

 Cuuservat. botan. Geneva^. 

 Rossia. Helvetia. 



Var. imhricata, forma iincroj^hyll'ma, Mer. 

 Merescbkovsky, I. c. 

 Laciniis brevioribus angustioribusque, minus quam 1 millim. latis. 



Spec. orig. in herb, meo Kazani. 

 Rossia ]\[(dia (Kazan). 



Var. rufescens, Mer. 

 Merescbkovsky, I. c. 

 Thallus brunneus, fuscus vel rufo-fuscus ; apothecia disco plus 

 minusve pruiuoso, marginibus thallinis destitutis in quid a var. 

 venusta diflert. Forsan est melius forma cousidereada. 



Spec. orig. (numeros.) in herb, meo Kazani. 

 Rossia Media (Kazau). 



