92 LICHENS. 



— var. frigida Ach. Liclie^iogr. univ., ISIO, p. 372, et Sijnops. metliod. 

 Lich., p. 172, Scha^r. Enum. critic. Lich. curop., 1850, p. 80, Th. Fr. 

 Licli. arctni, 1860, p. 100, in Act. reg. Soc. scient. UpsaL, ser. 3, t. III, et 

 Lichenogy\ scand., 1871, p. 234, Observ. I, N\\. Lic/i. Scand., p. 157, in 

 Notis. Sa//,-. Fauna ctF/ora fonn. For/tand/., t. V, 1861, Lic/i. Fueg. et 

 Patagoit., 1888, p. 1), Enum. Lic/t.fret. fie/iring., 1888, p. ii, 18, 54 

 et 63, in Bu//. Soc. Linn. Normand.., A^ sér, t. I, ac apud Hue Licit. exot.., 

 n. 1455, in:Vom'. ^?tA. il/îw., 3e sér., t. III, 1891, Miidd, Man. /rrit. 

 Lk/i., 1861, p. 156, Lei^ht., /^/cA. F/or.GreatDrit.. edit. 1, 1871, p. 188, 

 etedit. 3, 1879, p. 175, ac (Ivomh.., Monogr. LicJi. Brit., 1. 1, 1894, p. 459; 

 Lic/ien frigidus Sw. Met/wd. Mme, 1781, p. 36, tab. ÏI,fig. 4, Ach. in Vet. 

 A/md. Ham//., 1794, p. 182, tab. VI,iig. 2,etSowerby,£'n9/.^o/a/?., 1808, 

 fig. 1879; Parme/ia tartarea p. frigida Ach. Metliod. Lich., 1803, p. 166, 

 ac El. Fr. Lic/ienogr. europ. reform., 1831, p. 131 ; Parme/ia pare//a^(. 

 tartarea b. mMsc/co/flSchfer. Licli. helvet.Spicileg., pars II, sectio octava, 

 1839, p. 100 ; Ochro/echia tartarea c. frigida Kœrb. Parerg. /icheno- 

 log., 1865, p. 92. 



Thallus albido flavescens, passim albus, interdum insulatinique (an 

 casu fortuito ?) leviter caerulescens, apices Muscorum eorumque ramorum 

 erectorum vestiens, primum spinulosus, tenuissimus ac Isevis, deinde 

 granulatus et paulo crassior, granulis contiguis aut concrescentibus 

 sicque crustam parum crassam, pauluni ina^quatam, latissime expansam 

 indeterminatamque efficiens. In spinulis hyphœ 3-4 a crassœ, lumine 2 a 

 lato, cylindrico etsaepe breviter articulatœ, Muscosverticaliter vestientes 

 atque rarissime pauca gonidia admittentes. In granulis hyphfe axi Musco- 

 rum perpendiculares medullam materia atrata velatam corticemque 

 angustum formantes; inter eas gonidia pallide viridia, protococcoidea, 

 7-16 [j. lata, membrana incrassata,glomerulos ssepe satmagnosprœbentia. 

 Apothecia 2-5 mi 11. lata, plerumque pedicellata, dispersa, rarius con- 

 tigua, rotunda, excipulo prinmm laevi et dein corrugato, margine crassa, 

 prominente, in origine lœvi ac intégra, demum corrugato sorediosa ac 

 interdum lobuJata atque disco pallide testaceo aut etiamrufo, piano, Isevi 

 aut corrugato nudoque instructa. Excipuli cortex corpusculis atralis nu- 

 bilatus, in margine 40-100 et subtus 120-140 y- crassus ; ejus hyphae fas- 



