"Äfi T. HEDLUND, KRITISCHE BEM. tJBER LECANORA, LECIDEA U. MICAREA. 



planis, (lein convexis vel semiglobosis, difformibus et stepe 

 plus minus lobato-angulatis. margine pallidiore vel subfonco- 

 lore, livido-pallidis, livido-fusoescentibus, demum vel jam pri- 

 raitus olivaceis vel livido-atris, tenuiter pruinosis. 



Syn. Lecanora siilphurea (Hoffm.) Th. Fr. Seand. p. 208. 

 Lecidea Hulphuraa Wnbg. Suec. p. 903. 



2. F. crusta passim vel tota pulveruleiita et rimoso-diffracta 

 vel sublsevigata et rimuloso -areolata, dilute viridulo-flavieante 

 vel pallide oebroleuca; apotbeeiis jam primitns convexis, demuni 

 tuberculato -difformibus, lutescenti- vel fuscescenti-carneis vel 

 demum interdum sordide lividis vel olivaceis, vulgo nudis 

 f. petrophila (Th. Fr.) Hedl. 



Syn. *Lecanora symmicta f. petrophila Th. Fr. Scand. p. 2G3. 



'd. F. crusta granuloso-insequali, rimoso-diffracta, dilute 

 viridulo-flavieante vel sulphurea; apotheciis leviter convexis 

 lutescenti- vel fuscescenti-carneis vel demum olivaceis, sub- 

 nudis, mox lobato-angulosis, margine persistenter pallido . . . 

 f. straminea (Stexh.) Hedl. 



Syn. "^Lecanora symmicta f. straminea (Stenh.) Th. Fr. Scand. p. 363. 



De distributione in Scandinavia cfr. Th. Fr. U. c; praeterea f. stra- 

 minea liguicola in Gotlandia (G. Malme). 



Die f. petrophila ist eine von der Beschattung abhängige 

 Form, die nicht selten in einer und derselben Kruste in die 

 Hauptform iibergebt. Wie sicb f. straminea zu der an Stei- 

 nen vorkommenden Hauptform verbalt, daruber känn ich micli 

 nicht äussern, da icb noch keine Gelegenheit gehabt, sie in 

 der Natur zu studiren. 



L. symmicta (Acii.) Hedl. 



Crusta minute granulosa vel interdum subleprosa, flave- 

 scens vel cinereo- vel flavido-virescens vel obsoleta; apotbecia 

 rotundata, lutescen tia — rufo- vel olivaceo-fuscescentia vel 

 olivaceo-nigricantia ; pars marginalis excipuli primo tenuis; 

 sporse oblonga?, simplices, 4 — ö y, crassse. 



Syn. '^Lecanora symmicta Acir.; Th. Fr. Scand. p. 2ti2 j). p. 



Descr. Crusta tenuis vel tenuissima, minute granulosa 

 vel interdum subleprosa, llavescens vel cinereo- vel flavido- 

 virescens vel interdum fere obsoleta; apothecia primo pla- 



