of some Lichens. 265 



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

 Tabulae Generum Licli. Kazan, 1913, Lecanora, i. no. 23 (ex 

 gub. Astraclian). 



Gubern. Astrachan. Tauvia. Saxicola. 



Lecanora suhfusca, forma griseola, Mer. 



Mereschkovsliy, Addit. lichenogr. Rosa, i., Oesterr. Botan. Zeitsclir. 

 1921. 



Thallo griseolo (in typo tliallus constanter albescens), sec. specim. 



Spec. orig. in Mahne, Lich. Suec. no. 69 (sub Lecanora 

 suhfusca). 



Kazani, Suecia. 



Forma coiJocarpoides, Mer. 

 Meresebkovsky, Mat^r. p. une Monogr. d. genre Lecanora. 



Thallus tenuis, albineus ; apotbecia dispersa, orbicularia, vulgo 0*8- 

 1*2 millim. lata (usque ad 1*5 millim.), disco fusco-nigro, made- 

 facto rufo-fusco, subconvexo, nudo, margine thaUino mediocri, 

 baud inflexo, creuulato. 



Spec. orig. in herb. Conservat. botan. Geneva; (vide Tabulam 

 Lecanorce subfuscce)^ (2) in herb. Brit. Mus. 

 Prope Genevse. 



Forma viicrocarpa, Mer., subforma umhrinula^ Mer. 

 Meresebkovsky, I. c. 



Apotheciis confertis, 0*5- 1 millim. latis, convexiusculis vel convesis, 

 umbriuo-fuscis vel fusco-nigricantibus, uudis, nitidiusculis, mar- 

 gine tenui vel tenuissimo, griseo-cinerasceute, tenuiter crenulato. 

 Thallus et margo apotheciorum KOH+ flavescens. 



Spec. orig. in herb. Biit. Mus. 

 Lugano, supra Fagum. 



Var. hrat'hyspora, Mer. 



Thallus tenuiasimus ; apothecia 0-6-1 millim. lata, margine crassi- 

 usculo, integro vel vix crenulato, disco rufo, piano, nudo ; epi- 

 thecium granulatum sporse late ellipsoidese, subsphaericte, longi- 

 tudine 10-12 m., crassitudine 9-10 m. Est Lecanora subfiisca, 

 \a.T. Pivastri anzi, Lich. minus rari Ital. super., no. 186, doscripta 

 a Hue (Cans. s. le Lecan. suhfusca, Bull. Soc. hot. d. Fr. 1903, 

 p. 81) sine nomine. Verisimiliter species peculiaris est. 



