266 Prof. Dr. C. Meresclikovsky^s Diagnoses 



Var. minor (Oliv.), Mer., forma decussata, Mer. 



Thallus, apothecia et sporae ut in varietat© (vide specim. a me 

 determin. in herb. Conservat. bofc. Genevae et in herb. Brit. Mue.), 

 at thallo lineis nigris distinctissimie decussate. Supra cortic«m 

 fagi. 



Spec, ortff. (1) in herb. Conservat. botaii. Grenevai (vide 

 Tabulatn Lecanorce suhfascce)^ (2) in herb. Brit. Mas. 

 Giand Sal^ve, prope Geneva;. 



Lecanora umhrina, forma suhbotryosa, Mer. 



Merescbkovsky, Hedwigia, 1919, p. 203 ; id. Mat^r. p. une Monogr. d. 

 genre Lecanora. 



Apotheciis convexis, subbotryosis. Supra corticem cerasi. 



Spec. oriy. in herl). Conservat. botan. Genevie. 

 Lugano (Helvetia). 



Aspicilia asterias, Mer. 



Thalhis determinatua, placas rotundas vel subrotuudas formans, 

 ambitu pseudoeffiguratas, sordide albidus vel lacteo-candidus, 

 Isevigatus, opacus, rimoso-areolatus ; areolis quadrangularis vel 

 multangulis, marginem thallinum versus in radiis regulariter 

 dispositis, rimis dichotomice subdivisis, lobes radian tes a^mulan- 

 tibus. Apothecia imraersa, nigra, nuda plus minusve pruinosa. 

 In rupe calcarea. 



Spec. orig. in herb, meo Kazani. 

 Tauria. Gallia meridionalis prope Nice. 



A spicilia cerehroides^ Mer. 



Thallus liberus, glebulas irregulariter rotundatas, 15-28 millim. 

 longas et 9-20 millim. latas formans, superficie gyrosa ex areolis 

 tumidis elongatisque hypertroph)'cecrescentibu8, circuravolutiones 

 cerebrales in memoriam revocantibus coutextus. Intus in sectione 

 thallus albus, baud marmoreus ut in Aspicilia esculenta. Apo- 

 thecia non visa. Vide figura in Elenkin, Wanderflechten, in 

 Bullet. Jard. Botan. d. St. Petersb. t. i. tab. i. linea iv. fig. 6, 8, 

 linea v. fig. 6, 7. 



Spec. orig. (1) in Merescbkovsky, Tabulas Generum Li- 

 cbenum, Kazan, 1913, Aspicilia, i. {SpJicerothallia) no. 18 

 (e Tian Schan) ; (2) in herb, meo Kazani (sub Aspicilia 

 alpicola). 



