of some Lichens. 253 



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

 Licli. Ross. exs. no. 58. 



Rossia Media ; Astraclian ; Tauria ; Caucasus. 



Var. sibirica, Mer. 



Mereschkovsky, Additain. ad Liclienogr. Rossiaj, i., Oesterr. Bot. 

 Zeitschr. 1921. 



Thallus minor, magis applanatus, rosulas circiter 1-5-2 centira. 

 latas formans, laciniis brevibus, planiusculis, subtus pallidus. 

 tSterilis. 



Spec. orig. in herb, meo Kazani. 

 Sibiiia : Irkutsk (Vercholensk). 



Squaviaria crozahiaiKt, Mer. 



Thallus crassiusculus, efFusus, pallido-albescens, centre irregulariter 

 gyroso-areolatas, areolis convexis, confertis, ambitu laciniis 

 parum evolutis. Apothecia-rarissima ; sporae simplices, incolores. 

 Ad saxa calcarea murorum. 



Spec. orig. (numeros.) in herb, meo Kazani. 

 Beziers (Hdrault), Gallia. 



Squamaria inuralis, var. briinneola, Mer. 

 Mereschkovsky, Schedulae ad. Lich. Ross, exsiceatos, Kazan, 1913. 



Thallo lobis applanatis sicut in forma typica et colore thalli 

 brunueolo ut in Squamaria garovaglii. 



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

 Lich. Ross. exs. no. 14, (3) in herb. Conservat. botan. Genevse. 



Tauiia, Helvetia (Lugano) ! 



Comparanda cum forma ripariutn, Flot. Koerber Sy.st. 

 p. 115. 



Forma tenui'secta, Mer. 



Mereschkovsky, Contrib. fl. lichen, d. 1. Crimea, Ann. d. sc. nat, Bo- 

 tanique, 19'il (cimi fig.). 



Laciniis angustioribus, circiter 0-2-0-3 millim. latis, tenuiior 

 dissectis. 



Spec. orig. in herb, meo Kazani. 

 Tauria. 



Var. maroccana., Mei'. 



Mereschkovsky, Contrib. lich. Vhxdimir Travaux ( I'ludy) d. ]. soc. d. 

 Natural, d. I'Univ. d. Kazan, vol. xlii. 1911. 



Apotheciis convexis, pallidis. 



