415 
" Lecanora (Eulecanora) Olivieri A. Zahlbr. nov. spec. 
Thallus epiphloeodes, crustaceus, uniformis, maculas 
rotundas, plus minus confluentes et bene determinatus for- 
mans, tenuis, glaucescenti-albidus, opacus, KHO lutescens, 
CaCl,0,—, irregularifer rimosus, granuloso-inaequalis vel in- 
aequalis, sorediis et isidiis destitutus, in margine linea obscu- 
riore non cinctus, cortice distincte evoluto non supertectus, 
gonidiis pleurococcoideis, glomeratis, glomerulis plus minus 
distantibus, cellulis 9—12 u latis; medulla alba, J—, KHO—, 
CaCl,0,—. Apothecia sessilia, parva, usque 12 mm lata, con- 
gesta, plus minus angulosa vel sinuato-irregularia; discus 
livido-fuscescens vel alutaceus, passim parum obscuratus, 
tenuiter albido-pruinosus; margo thallinus bene prominulus, 
crassiusculus, integer vel subinteger, thallo fere concolor, 
ecorticatus, gonidia copiosa, usque ad verticem assurgentia 
includens; excipulum distinctum non evolutum; epithecium 
tenue, fuscescens, pulveraceum, CaCl,O,—; hymenium de- 
color, guttulis oleosis non impletum, 70—90 u altum, J e coe- 
ruleo sordide obscuratum; hypothecium decolor, ex hyphis 
dense intricatis formatum, strato gonidiali superpositum; para- 
physes filiformes, ad 1'5 w crassae, densae, conglutinatae, 
simplices vel parce ramosae, eseptatae, ad apicem paulum 
latiores; asci oblongo- vel ovali-cuneati, hymenio subaequi- 
longi, ad apicem rotundati, 8spori; sporae in ascis subbi- 
‚seriales, decolores, simplices, ellipsoideae vel .ovali-ellipsoi- 
deae, membrana tenui et laevi cinctae, 9—11y. longae et 
5—7 1, latae. Conceptacula pycnoconidiorum minuta, immersa, 
vertice nigricante parum prominula; perifulcrium pallidum; 
fulcra exobasidialia; pycnoconidia filiformia, curvata vel 
hamata, utrinque retusa, 12 —16 u longa et ad 1 lata. 
Insula Cazza, ad corticem Oleae. 
Ad stirpem Lecanorae angulosae Ach. pertinet, disci co- 
lore et reactione Ze distincta. 
er (sect. Placodium) lagostana A. Zahlbr. nov. spec. 
Thallus crustaceus, subplacodinus, plagas usque 2cm 
latas, plus minus confluentes formans, tartareus, tenuis, 0°6 
