of some Lichens. 267 



Aspicilia desertorum, ioxmvi ferriiginea^ Mer. 



Mereschkovsky, Schedulis ad Lich. Ross, exsiccatos, no. 17, Kazan, 

 1913. 



Thallus et apothecia sicut in forma typica, at colore ferrugineo 

 thalli ab haec differt. Saxicola. Potius lusus est. 



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

 Lich. Ross. exs. no. 17, (3) in ejusdem Tabula3 Gen. Lich. 

 Aspicilia, i. (^SphcerothalUa) no. 2 (e Monte Bogdo). 



Gubernia Astrachan. 



Forma svhlcevata, Mer. 



Mereschkovsky, Excurs. lichdnol. d. 1. steppes Kirghises (Mont Bogdo), 

 Kazan, 1911 (cum fig.)- 



Apotheciis planioribus, marginibus tenuioribus minusque elevatis, 

 disco dense pruinoso. 



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

 Tabulse Gen. Licli. Kazan, 1913, Aspicilia, i. (Spkcerothallia) 

 no. 3 (e Mons Bogdo). 



The apothecia, quite Lecanorine in the type, present a more 

 Aspicilian aspect in this foim. 



Gubernia Astrachan. Ad saxa argillaceo-schistosa. 



Var. aspera, Mer. 

 Mereschkovsky, /. c. (cum fig.), 



Thallus asperus, spinulis vel protuberantiis spinulosis brevibus 

 irregularibusque plus minus instructus. Saxicola et terricola. 



Spec. orig. ibidem (Tabnlse Gen. Lich. no. 6) (Mons Bogdo). 

 Gubernia Astrachan. Tauria. Asia Media. 



Forma hispidoides, Mer. 

 Mereschkovsky, I. c. (cum fig.). 



Thallus baud liberus, subfruticulosus, ramulis elongatis, erectis 

 subramosis, superficie irregulariter rugoso, aliquantulum Aspi- 

 ciliam hispidam, Mer., in memoriam revocans. Terricola et 

 saxicola. 



Spec. orig. in herb, meo Kazani. 

 Gubernia Astrachan. Asia Media. 



