of some Lichens. 255 



Squamaria teicholea, forma obscura, Mer. 



Apotheciis obscurioribus, nigricautibus vel nigris. 



Spec. orig. in herb, meo Kazani. 

 Italia, Capri, ad saxa calcaiea. 



Lecanora albella, var. peralbella, forma superfusa, Mer. 

 Mereschkovsky, Naclitr. z. Flechtenliste Umgeg. Revals, Kazan, 1913. 



Apothecia parva, distantes, baud angulosa, disco piano, dense 

 pruiuoso. 



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

 Esthlandia : Reval. 



Mereschkovskj, Mat6r. p. uue Monogr. d. genre Lecanora. 

 Lecanora albeaeens, forma verrucosa, Mer. Nachtr. z. Flechtenl. Umg. 

 Revals, Kazan, 1913 (eiTore). 



Thallus parum evolutus,haud effusus, insulas interdum plusminusve 

 orbiculares formans. Apothecia ut in typo, sed agglomerata 

 confertaque, mutuo pressione plug minusve prsesertim centrum 

 versus valde elevata, pulvinulos formans, nondum in thallo 

 immersa. 



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

 Tabulae Generuni Lichenum (1913), Leca7}ora, i. no. 32. 

 Esthlandia : Reval. 



Forma granulosa, Mer. 



Mereschkovsky, I. c. etiam iu hujiis Tabulas Generum Lichenum, Le- 

 canora, i. no. 83. 



Thallus albas, e granulis minutis subdispersis vel dispersis com- 

 positu.'?, apotheciis minoribus. 



Spec. orig. in herb, meo Kazani et in Tab. Gen. Licli. 

 Estlilandia : Reval. 



Var. dispersa, forma aggregata, Mer. 



Mereschkovsky, I. c. etiam iu Lujus Tabulae Generuni Lichenum, Le- 

 canora, i. no. 36 (e Pyreu. -Orient.). 



Thallo albo, hinc iude visibili, apotheciis partim aggregatis. 



Spec. orig. in herb, meo Kazani et in Tab. Gen. Lich. 



Esthlandia : Reval. Pyren.-Orient. (Gt 



