16 
cierum modo commemoratarum conjungenda sint, sed et speciem 
novam formare possint. 
57.  Lecanora subfusca Ach. 
var. distans (Pers.) Nyl. Lich. Scand. p. 460. 
Sporæ long. 0,011, lat. 0,005 mm. 
Serra da Piedade, ad corticem, 
Var. angulosa (Ach.) Nyl. Lich. Scand, p. 164. 
Lagoa Santa, ad cortices arborum campestrium. 
Var. allophana (Ach.) Nyle 1-c. p. 460: 
Lagoa Santa, ad cort. 
Var. argentata (Ach.) Nyl. I. c. p. 160. 
Lagoa Santa, ad cort. 
58.  Lecanora soredifera Fée Ess. p. 4414, tab. XXVIUII fig. 3; 
Supplem. p. 444. 
Thallus cinereus vel cinereo-flavidulus, granulato -inæqualis 
vel subpapillato-scabriusculus, granulis vel tuberculis albidis mi- 
nutis primo integris intus flavo-aureis dein sorediformibus, fatis- 
centibus, effusus; apothecia sessilia, sparsa, majora, disco atro 
vel fusco-atro plano vel convexiusculo interdum nonnihil flexuoso, 
a margine thallode tenui flavidulo integro circumdato; sporæ 8, 
hyalinæ, ellipsoideæ, simplices, long. 0,010—012, crass. 0,005 
—006 mm.; paraphyses tenues, conspicuæ ; hymenium albidum, 
hypo tenui atro impositum. 
Lagoa Santa, ad cortices. 
A Lecanora granifera Ach., quoad habitum subsimili, sporis 
majoribus, hypothecio .atro, colore disci ejusque marginis satis 
diversa. 
59.  Lecanora fulvastra Krphbr. spec. nov. 
Thallus tenuis, albidus vel pallido-flavescens, granulosus, 
maculas irregulares minutas inter alios lichenes crustaceos effor- 
mans; apothecia parva, conferta, læte vitellina margine tenui 
dilutiore, disco plano, Sporæ 8, ovoideæ, simplices, hyaling, 
0,011—012 mm. long., 0,005—006 mm. lat. 
