I92I.N0. 7- STUDIES ON THE LICHE.X FLORA OF NORWAY. 121 



I look upon Xcplironia liisitaiiicimi as a proper species. It has another 

 distribution in our country than A^ lacvif^atiiiii, it is a western species with 

 the same distribution as Lobaria laciiiiafa. 



Its margins are more crisp than in ;V. lacvlgatimi, in part owing to a 

 more crenate structure, in part to a + rich development of marginal mi- 

 crofolioli, often narrowly afhxed. The margin is in some plants quite 

 papilloso-cristate or even cristate (f. e.xaspcrata Norm., from Kvaro); and 

 very rarely the microfolioli become isidioid or even soredioso-fatiscent (spe- 

 cimen from Grefsenaasen), approaching to A', parilc. 



Thallus vulgo sterilis. Apothecia, si evoluta, numerosa, rotunda vel 

 basi subreniformia, postica, mediocria vel magna, diam. usque 20 mm., 

 margo thallino tenui, integro vel crenulato circumdata. Discus badiofuscus, 

 epruinosus, subnitidus, receptaculum grosse albo-punctatum vel dein reticu- 

 lato-rugosum. Cortex marginis hyphis plectenchymaticis leptodermaticis 

 formatum, parte exteriore flavofuscescens, 40 — 80 [x altus; gonidia viridia 

 marginem versus strato crasso subcontinuo infra corticem inclusa, praeterea 

 infra hypothecio desunt. Hymenium 55 — 65 [j- altum, strato tenui amorpho 

 tectum. Paraphyses conglutinatae, indivisae, indistincte septatae, apice haud 

 incrassatae. Sporae octonae, anguste ellipsoideae vel ellipsoideo- fusiior- 

 mes, apice rotundatae, tri- (rarius uni-) septatae, incoloratae vel dilute lusco- 

 flavescentes, 17,5 — 21,5x5,3-6,6 \u 



Hymenium J vix caerulescens et mox Havorubescens, asci e dilute cae- 

 ruleo mox intensius rubescentcs, hypothecium persistentius caerulescens vel 

 dein obscurascens. 



13. Peltigera Willd. 

 /. Peltigera aphtosa (L.). 



Osf/. Larkollen (B. L.). Akcrsli. Holand: Skullerud (B. L.), Kristiania 

 and Aker common (Moe a. o.), Romerike: Hersjoen (B. L.), Eidsvoll (Sør.), 

 Minne (B. L.). Vest/. Holmestrand (B. L.), TJoUing (Hoeg), Malmoen (B. L.). 

 Busk. Krokkleven (H.), Haugsund (Ki.krI, Mol: Odnak (B. L.), Gjeilo: I lofs- 

 dalen (B. L.). 



Telej}i. Litjell (Hoch), Klosterskogen (B. L.). Aiisfag(L Tromoen (B. L.), 

 Evje: Galteland (Sor.). Vcstagd. Mandai: pr. Skjernoen (B. L.). Rog. 

 Egersund (H.). 



Hord. Moster (H.), Fusa: Sævareid (Lillef.I, Samnanger: Aadland 

 (Lid), Modalen: Steinsland (Lu)), Hamre: Pipervatnet (Lid), Granvin: Aasene 

 (H.), Voss: BJGi-gum (Lid), and Fjellsetdakn (Lid), Finse (B. L.). Sogn. 

 Stat: Lekanger (H.). 



Hed. Matrand (B. L.), Solor: Haslemo (B. L.), Jutulhugget (B. L.), Tron 

 (B. L.), Atna (Kiær), Tonset: Havern (B. L.), Helgøen (B. L.). Opl. Hun- 



