of some Lichens. 261 



Var. fuscorufa^ Mer., forma convexiuscuhi, Mer. 



Mereschkovsky, /. c, 



Thallus cinereus, minute granulosus ; apothecia sparsa, minora 

 quam in typo, circiter ut in forma virella hujus varietatis, disco 

 convexiusculo vel convexo, testaceo-rufescente vel fusco-rufo vel 

 fusco, nudo, margine tenui vel tenuissimo vel demum subevan- 

 escente, integro vel saepius plus minus minute crenulato. Unacum 

 varietate fuscorufa. 



Spec, ori'g. (1) in herb. Coiiservat. botan. Geiievse (vide 

 Tabulam Lecanorce coiforarpce) , (2) \n lierb. Brit. Mus., (3) in 

 heib. Parisii (Museum), (4) in lierb. Univ. Upsala?, (5) in 

 lierb. Harv. Univ. Cambridge (U.S.A.). 



Lugano (Helvetia italica). 



Forma siihpruinosa, Mer. 



Mereschkovsky, /. c. 



lipothecia paullum majora, discreta, regulariter orbicularia, disco 

 fusco, leviter subpruinoso, convexiusculo. DitFert a Lecanora 

 atrynea, in Norrl. et Nyl. Herb. Lich. Fenn. no. 132, apotheciis 

 hand planis vel concavis, ut in airynea, sed convexiusculis. 



Spec. orig. in herb. Conservat. botan. Genevse (vide Tabulam 

 Lecanorce coilocarpce). 



Lugano (Helvetia its^lica). 



Lecanora crenulatisshna, Mer. 



Mereschkovsky, Excurs. licbenol. dans les steppes Kirghises (Mout 

 Bogdo) ; Troudy (Travaux) d. 1. Soc. desNatur. d. I'Uuiv. d. Kazan, 

 Annee 1911. 



Thallus albineus, mediocris, subgranulatus ; apothecia mediocria, 

 orbicularia, disco nigro, nudo, margine albido, granulato-crenu- 

 latissimo, crenulis minutis, numerosis, moniliformibus, valde 

 regulariter dispositis. Ad saxa arenacea. 



Spec. orig. in herb, meo Kazani. 

 Gubernia Astrachan ; Tauria. 



Forma pezizoidea, Mer. 



Mereschkovsky, Addit. ad lichenogr. Rossise, i., Oesterr. Botan. Zeitschr. 

 1921. 



Margine thallode apotheciorum ut in forma typica at apotheciis 

 majoribus, usque ad 3-4 millim. latis, cupuliformibus, disco atro, 

 nudo. Ad saxa arenacea. 



Spec. orig. in herb, meo Kazani. 

 Rossia, gubern. Astrachan. 



