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141 



1317. Blastema pulcherriwa Mull. Arg.; thallus obscure 



cinereus, subtends, crebre et tenuiter eorallino-granularis, mar- 

 gine effusus ; hypothallus albus, secus marginem subperspicuus ■ 

 apothecia adpresso-sessilia, eire. a / 4 — 1 mm. lata, plana, tota 

 pulcherrime tin eta, primum fulgenti-laeto-coccinea, dein pur- 

 pureo-sanguinea, tota concolora; discus planus; marge semper 

 prominens, tenuis, demum undulatus et varie tortus; hypothe- 

 cium et lamina infeme et medio hyalina, haec supeme cum 

 epithecio coccineo - purpurea ; asci S-spori; sporae 10 — 12 p. 

 longae, 6 — 7 u latae, late ellipsoicleae, utrinque obtusae, loculi 

 utrinque demum longe distantes. — Prope BL puniceam 

 Mull. Arg. locanda est. A BL ferruginea apotlieciis Iaetissime 

 flainmeo-coloratis, sporis minoribus et thallo differt. — Corti- 

 cola in Australiae prov. Victoria, loco Mordialloc: French (ab 

 illustr. Ferd. v. Mueller missa). 



1318. Buellia argillacea Mull. Arg.; thallus argillaeeus, 

 tenuis, granuloso-diffractus, granula depressa, angulosa; 'apo- 





tliecia ~ mm. lata, nigra, nuda, plana, margine prominulo 

 cincta; epithecium fuscum v. virenti-fuscum ; hypothecium eras- 

 sum, fusco-nigrum ; aseii-spori; sporae 15 — 17 //longae, 7— 8 it 

 latae, ellipsoideae, medio modice constrictae. — Prope B. lepto- 

 eline Mass. locanda, ubi apothecia crassiora. — Saxicola in 

 ins. Siid-Georgien, Lecideae ocellatulae intermixta: Dr. Wilken. 



1319. Phlyctidium (s. Phyllophlyctidium) phyllogenum 



Mull. Arg. ; thallus virenti-argenteus, tenuissimus, laevis, mox 

 a substrato desquamescenti-deciduus ; gonidia tenello-phyllacti- 

 dialia (unde sect, distincta Phyllophlyctidium); apo tliecia 

 erumpentia, subalba, thallo emergente irregulariter spurie mar- 

 gin ata, margo spurius demum crenato-lobatus ; discus albus v. 

 flavescenti-albidus, planus, paullo depressus, subpulverulentus • 

 lamina hyalina, tenax; asci ambitu latiusculi, 4 — 5-spori; sporae 

 hyalinae, vermiformes, utrinque rotundato-obtusae, 9 — 14-loeu- 

 lares, 56 — 65 jj. longae et 8 — 10 jj. latae, spiraliter curvatae. 

 Habitu ad Gyalectidium xantholeueum accedens, sed margo 

 minus distinctus, irregularis et discus e thallo erumpens et 

 sporae dein diversissimae. — In foliis Ixorae in Nova Guinea: 

 Sayer (comm. ill. Fr. v. Miiller). 



1320. Astrothelium grossum Mull. Arg.; thallus crassus, 



fa 



grosse disrupto- et undulato-inaequalis, superficie laevigatas, 

 opacus, pallescenti-roseus ; stromata sessilia, basi modice in- 

 nata, hemisphaerico-conica, obtusa, 2— 4-pyrenia, tota altitu- 



