414 
Insula Busi, ad ramulos Quercus ilicis. % 
Lecanoram symmicteram Nyl. parvam simulat, sed apo- 
thecia biatorina. 
Lecanora (Enlecanora) pomensis A. Zahlbr. nov. spec. 
Thallus epilithicus, crustaceus, uniformis, effusus, bene 
determinatus, subtartareus, usque 1 mm crassus, caesioalbidus, 
subnitens, KHO superne sanguineo-rubens, CaCl1,0,—, Yimu- 
loso-areolatus, areolis plus minus polygonis, in ambitu sub- 
integris vel subflexuosis, parvis, O:3—0O'8 mm latis, fissuris 
angustis sed altis limitatis, planis, continuis, sorediis et isidiis 
destitutus; medulla alba KHO et KHO+CaCl,O, e flavo sans 
guinea, J—. Apothecia sessilia, dispersa et rotunda vel plus 
minus approximata .et dein subangulosa vel subirregularia, 
parva, 0'8—1'I mm lata, ad basin leviter angustata; margo 
thallinus thallo concolor, tenuis, parum prominulus, leviter 
crenulatus, ecorticatus, gonidia copiosa includens, KHO san- 
guineo-rubens; discus niger, opacus, epruinosus, planus vel 
planiusculus; epithecium, pulverulentum,. obscure. fuscum, 
KHO— vel vix mutatum (magis umbrino-fuscescens); hyme- 
nium decolor, guttülis Oleosis' non «impletum, 70—80 u altum, 
J violaceo-coeruleum, inferne sensim in hypothecium decolor 
abiens; paraphyses 'tenuissimae, ad 1'5 m crassae, congluti- 
natae, eseptatae, ad apicem vix latiores; asci hymenio sub- 
aequilongi, clavati,; ad apicem rotundati et ibidem membrana 
modice incrassata eincti, 8spori; sporae in ascis subbiseriales, 
decolores, simplices, ellipsoideae vel ovali-ellipsoideae, mem- 
brana tenui laevique cinctae, 10 —11  longae et 5—6 u latae. | 
Conceptacula pycenoconidiorum immersa, globosa, vertice nigrie 
cante, punctiformi vix prominula; perifulcrium pallidum; fuler@ 
exobasidialia; basidia lageniformi-subfiliformia, densa, fascieur 
lata, pycnoconidiis subaequilonga; pycnoconidia filiformiay 
arcuata, curvata vel hamata, 12 —16 1 longa et ad Iw lata. 
Insula Pomo, ad saxa vulcanica. & 
Habitu Zecanorae atrae ad stirpem Lecanorae chlorinae 
pertinens reactione thalli notabilis. 
