147 



*Ij. ebscurella (Smmrf. Cr. Norv. 132; Biatora phceostig- 

 fna Krb., Th. Fr. Arct. p. 197, pr. p.) f. heterella Nyl. — T hal- 

 lus albido-cinerascens tenuissimus obsoletus vel nullus visi- 

 bilis; apothecia fusconigra convexiuscula (latit. circiter 0,4 

 millim.), immarginata; sporeeS"^ ellipsoideo-oblongse, longit. 

 0,009 — 0,012 millira., crassit. 0,004—5 niilHm., paraphyses dis- 

 cretse mediocres vel crassiusculae apice clava luteofuscescen- 

 te, hypothecium incolor, gelatina hymenea iodo coerulescens, 

 dein mox theose vegetse vinose rubescentes vel vinose rubro- 

 fulvescentes. — Pinicola, ad Knäsä (154), in fundo sinus 

 Maris albi Kantalahti. Vera obscurella Smmrf. differt preeci- 

 cipue paraphysibus minus distincte clavatis et gelatina hyme- 

 nea iodo intense cffirulescente (dein obscurata vel thecis pro 

 parte sordide fulvescentibus); etiam in regione Kolaensi. 

 Forte heterella propriam sistat varietatem. Thecse non vege- 

 tee iodo ei vulgo manent ccerulescentes. 



17. liecidea albellula Nyl. in Fellm. Lich. arct. 129. 

 — Thallus albidus minute granulosus vel tenuiter granulo- 

 so-insequalis, macula hypothallina cinereo-nigricante (hypothalli 

 tenuissimi) supersparsus vel passim macula talis nulla visi- 

 bilis; apothecia testaceo-pallida parva (latit. 0,5 millim.) 

 convexa immarginata (juvenilia lecanoroidea plana, margine 

 subthallino evanescente), intus incoloria ; sporae 8"* oblongee 

 simplices, longit. 0,008 — O^oil millim., crassit. 0,004— 5 naillim., 

 paraj^hyses non discreta^, epithecium et hypothecium incolo- 

 ria. Gelatina hymenea iodo vinose rubens (prsecedente cce- 

 rulescentia levi). 



Ad corticem betulse prope Kantalahti (129). Gonidia di- 

 am. 0,011—16 millim. Spermogonia vidi parca, spermatiis bre- 

 vibus (longit. circiter 0,005 millim.) curvulis, sed anne para- 

 sitse vel thalli se intermiscentis? Forte satius heec species sit 

 Lecanora^ at in Lecidea cyrtella (alniaria)^ Bouteillei (Desmaz.) 

 etc. facies apotheciorum ssepe lecanoroidea. 



18. Ii«eidea epiplisea Nyl. ■ — Thallus albido-cinera- 

 scens tenuissimus decolorans vel macula albido-cinerascente 

 (decolorante) indicatus; apothecia fusca (rufescenti-fusca 



