of some Lichens. 287 



64. Cladonia syhatica. 



My collections in Kazan contain material for ten more 

 fascicules. It is hoped that some liclienologist will undertake 

 the continuation of this work after my death. 



' Tahidce Generum Lichenum.* 

 Edited by Prof. Dr. C. Meiieschkovsky. 



This work is still less known than the previous one. Only 

 five tabulae have been issued, bul: material exists, gathered 

 during my travels through the whole of Europe, for about 

 tiiirty-five tabulae. 



The tabular that have already appeared — they can also be 

 obtained later on through Dr. J. 13riquet, Geneva — include 

 the following genera : — 



Lecanora, I., II., and III. 

 AspiciHa, I. (^Sphcerothallia). 

 Gaspartinta, I. 



These have been acquired by (1) the Academy of Science 

 of Petrograd, (2) Hortus botanicus petropolitauus, (3) Univer- 

 sity of Kazan. 



I give here the contents of these five tabulae^ and add the 

 localities (which they do not contain) as far as I can remember, 

 all my notes having been left in Kussia : — 



AspiciLiA I. (Sphserotliallia). 



1. Aspicilia desertorum (Kreruplh,), Mer. Bogdo iu gubernia 



Astraclian (Kossia). 



2. , foi-ma, ferruginea, Mer. Ibidem. 



3. , forma sublcevata, Mer. Ibidem. 



4. , var. incim, ^er. Pr. p. ibidem, pr. p. Provincia Syr. 



Uarja, prope locmii Kyzil-Khiil (Rossia). 



6. semivagans, Mer. Tauria : Ai Petri (Rossia), 



6. -, var. aspcra, Mer. Bogdo in gubernia Astrachan 



(R(;ssia). 

 7. esculenta (Eversm.), Mer. Ibidem. 



