of some Lichens. 251 



0-7-1 millim., raro ultra latis, siiblinearibus, palmatim subdicho- 

 tomice divisis, hinc inde uigro-margiiiatis ; tballua baud soredi- 

 osus, colore ut in typo. 



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



Confer, cum forma stenophi/lla, Harm. Licli. d. Fr. p. 507. 



Estlilaiidia : Austria. 



Parmelia prolixa, var. tenmsecta, Mer. 



MereschkoTskj, Contrib. fl. licben. d. 1. Crim6e, Arm. d. sc. nat. Bo- 

 tanique, 1921. 



Thallus liberus vel laxe rbizinis brevibus rarisque ad granules 

 terree stepparum adfixus, minutus, circiter | centim. latus, 

 nigrescens, nitidus, valde irregulariterque dissectus, laciuiis 

 discretis, angustis, irregularibus, marginibus quasi erosis ; subtus 

 pallidus, subcaiiiculatus, Sterilis. 



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

 Tauria. 



Parmelia saxatilts, forma plumhea, Mer. 

 Mereschkovsky, Nachtrag z. Flechtenl, Umgeg. Eevals, Kazan, 1913. 



Thallo cinereo-obscuro vel ciuereo-plumbeo, isidiis ut in forma 

 aizonii. 



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

 Esthlandia, Reval. 



FarmeUa sorediata, forma tenuatula, Mer. 



Meresclikovsky, Nachtrag z. Flechtenl. Umgeg. Revals, Kazan, 1913. 



Thallo minore, lobis angustissimis a typo differt. 



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

 Esthlandia, Reval. 



Parnulia sulcata, forma nilida, Mer. 



Mereschkovsky, Beitr. z. Kenntn. d. Flecht. Uingeb. v. Reval, Kazan, 

 1909 (sub var. Icevts) ; vide etiam Hedwigia, 1919, p. 199. 



Thallus cinereus ut in typo, baud albidus, nitidus, laevis vel passim 

 rugulosus, esorediatus, laciniis discjetis, elongatis, adnatis, 

 linearibus, 2-'3 millim. latis, apicibus hand fuscescentibus. 



Spec. orig. in herb, meo Kazani. 

 Rossia Media : Esthlandia. 



