30 A. ZAHLBRUCKNER, DIE FLECHTEN. 



incolor, leviter inspersum, J coeruleum; paraphyses filiformes, ramosae et connexae, 

 eseptatae, ad apicem non latiores, ad 1 \>. crassae; asci cylindrici, ad apices rotundati 

 et membrana incrassata cincti, (4)— 6 — 8-spori; sporae in ascis imiseriales, decolores, 

 simplices, ellipsoideae, ovali- vel oblongo-ellipsoideae, ad apices rotundatae vel sub- 

 acuminatae, membrana duplici cinctae (membrana externa laevi, angustiore, 1,7 — 2,2 y. 

 lata, membrana interna etiam laevi, 4 — 6 ;j. crassa), guttnla oleosa unica et ampla 

 impletae, 65—70 [t longae et 34 — 35 [t latae, K HO non tinctae. 



Conceptacula pycnoconidiorum in tuberculis minutis, 0.3 — 0.5 mm latis, albidis 

 inclusa; perifulcrium pallidum; fulcra exobasidialia; basidia angusta, subampullacea; 

 pycnoconidia capillaria, subrecta vel leviter arcuata, utrinque retnsa, 14- — 16 ;j. longa 

 et ad 0,5 lata. 



Falkland-Inseln: Westinsel, Port Philomel, Halfvvay Cove, auf Sandstein. 



Durch die Gestalt der Fruchtwarzen, das diinne Lager und die kurzen Pykno- 

 konidien gut charakterisiert. 



Pertusaria melanospora Nyl.! in Annal. Scienc. Nat., Botan., ser. 4., vol. III, 

 1855, p. 159, in Bull. Soc. Linn. Normand., ser. 2., vol. IV, 1872, p. 289, not. et 

 Lichen. Pyren. Orient., 1891, p. 61, not.; Hue in Nouv. Archiv du Museum, ser. 3., 

 vol. III, 1891, p. 85. 



Thallus epilithicus, crustaceus, uniformis, subtartareus, tenuis, effusus, alutaceo- 

 lacteus, subopacus, KHO vix mutatus, CaCl 2 2 leviter erythrinosus, KHO lutescens, 

 areolato-diffractus, areolis parvis, 0,i — 0,5 mm latis, angulosis, fissuris tenuibus limi- 

 tatis, planiusculis, superne laevibus, continuis, sorediis et isidiis destitutus, superne 

 strato corticali obductus, ex hyphis dense intricatis et dense inspersis formato; me- 

 dulla alba, KHO f lavescens, CaCl 2 2 erythrinosa, J — . 



Verrucae apotheciigerae dispersae, sessiles, 0,8—1,2 mm latae, ad basin leviter 

 constrictae, subsemiglobosae, thallo concolores, laeves, ad verticem primum puncti- 

 formiter pertusae, demum sat breviter träns versim fissae, 1— 5-carpicae, strato corti- 

 cali obductae, medullam et gonidia includentes; disci apotheciorum nigri, opaci, 

 minuti, rotundi et vix impressi; epithecium nigrescens, KHO violascens; hymenium 

 decolor, guttulis oleosis non impletum, J intense coeruleum, 330—370 jj. altum; hypo- 

 thecium angustum, decolor, ex hyphis intricatis tenuibus formatum; paraphyses 

 capillares, ramosae et connexae, eseptatae, ad apicem non latiores; asci oblongo- 

 clavati, ad apicem retuso-rotundati, pachydermatici, 4 — 8-spori; sporae in ascis 1 — 2- 

 seriales, ex decolore mox coeruleo-nigricantes, simplices, ellipsoideae, membrana 

 duplici cinctae, membrana externa valde tenui, ad 1 ;j. crassa, interna ad 9 [i crassa, 

 colorata, KHO violascens, subtiliter striolatae, 62 — 80 [j. longae et 36—46 ;j. latae. 



Conceptacula pycnoconidiorum verrucosa, sessilia, hemisphaerica, parva, ad l,i 

 mm lata, vertice punctiformi vel paulum irregulari, nigricante; fulcra exobasidialia; 

 pycnoconidia capillaria, plus minus curvata vel hamata, 21—26 [j. longa et 0,5 ^ lata. 



Juan Fernandez: Masatierra, Bahia del Padro, auf Lava. 



