of some Lichens. 283 



Physcia sfellaris, forma alho-gramtlosa, Mer. 



Mereschkovslcy, Coutrib. connaiss. lich. gouv. Vladimir, Troudy (Tra- 

 vaux), d. 1. soc. d. Natur. d. I'Umv. d. Kazau, 1911; id. Coutrib. il. 

 lich. Kazan, Hedwigia, 1919, p. 232. 



Thallus albus, granuloso-inoequalis praecipue centrum versus. 



Spec. orig. (numeros.) in lieib. meo Kazaui. 

 Kossia Media. Esthlanclia: Keval. 



Physcia tribacia, vai-. lahrosa, Mer. 

 Mereschliovsky, Contrib. fl. lichen, envir. Kazan, Hedwigia, 1919, p. 234. 

 Tliallo griseo-virescente, laciniis magis erectis, irregulariter sub- 

 confertis, labroso-sorediatis a typo valde differt. Forsan ad 

 Physdam labratam pertinet. Ad corticem arborum. 



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

 liossia Media. Esthlaudia : Reval. 



Physcia virella, var. setosoides, Mer. 



Meresclikov.sky, I. c. p. 236. 



Thallus cinereo-virescens, rosulas gsepe confluentes formans, sore- 

 diosus, sorediis viridis ; lacinia) ciliis marginalibus plus minus 

 numerosis, bene visibilibus modo Physcice seiosce munitae. Sterilis. 

 Ad corticam tilise. 



Spec. orig. (numeros.) ibidem. 

 Kossia Media (Kazan). 



Rhizocarpon geographicum, var, ndcroareolata^ Mer. 



Thallus intense flavescens, areolis minutissimis, circiter 0-4-0-5 

 millim. latis (vel minor), confertis, plants ; apotheciis minutis 

 inter areolis immixis. 



Spec. orig. in herb, meo Kazani. 

 Austria Inferior (Monichkirchen) *. 



Verrucaria calciseda, forma roseola, Mer. 



" Thallo rosedlo." 



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

 Austria Inferior (Wiener Wakl). 



Numerous new forms of Graphis scrip/a, with Latin dia- 

 gnoses, have been or are to be described by tlie author in hi.s 



* Without my notes, left in Russia, I am not quite sure of the locality : 

 it is either Austria or Gallia meridionalis. 



