2G2 Prof. Dr. C. Meresclikovsky's Diagnoses 



Lecanora dispersa, forma obscura, Mer. 



Meresclikovsky, Beitr. z. Kenntn. d. Flecht. Urngd. y. Reval, Kazan, 

 1909. 



Apotheciis obscurioribus. 



Spec. orig. in herb, nieo Kazaui. 

 Esthlandia : Reval. 



Lecanora elenkiniij Mer. 



Mereschkovsky, Schedulae ad Lich. Ross, exaiccatos (no. 31), Kazan, 

 1913; id. Contrib. fl. lichen, d. 1. Crim^e, Ann. d. sc. nat. Bo- 

 tanique, 1921. 



Thallus tenuis, parum evolutus, lutescente-albidus ; apothecia media 

 vel submedia vel mediocria, elevata, margine con colore, tunaido, 

 discum valde superante, involuto, disco piano vel concaviusculo. 



Spec. orig. (1) in herb, meo Kazani, (2) in Mereschkovsky, 

 Lich. Rossise exs. no. 31, (3) in ejusdem Tabulre Generura 

 Lichenum (1913), Lecanora, i. no. 29 (e Tauria). 



Tauria. 



Forma alhinea, Mer. 



Mereschkovsky, Contrib. fl. lich^nol. Crim^e, Ann. d. sc. nat, Bo- 

 tanique, 1921. 



Thallo et margine apotheciorum albo ; thallo pulverulento. 



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

 Tabula} Generum Lichenum (1913), Lecanora, i. no. 30 

 (e Tauria : Sinferopolis). 



Tauria. Austria meridionalis ! 



Lecanora gangaUoides^ forma ornata^ Mer. 



Mereschkovsky, Tabulae Generum Lichenum, Kazan, 1913, Lecanora, 

 ii. no. 62 (ex Gallia, Docelles (Vosges)). 



Apotbeciis foliolis thallinis ornatis. Est forma potential is (vide 

 Hedwigia, 1919, p. 206). 



Spec, orig. in herb, meo Kazani. 



Forma plumhea, Mer. 



Mereschkovsky, I. c. no, 53 (e Gallia, Docelles (Vosges)), 



Thallo plumbeo. 



Spec. orig. in herb, meo Kazani ; vide etiam in Tab, Gen. 

 Lich, no. 53. 



Gallia : Docelles (Vosges). 



