154 Zahlbruckner, Diagn. neu. u. ungenüg. beschrieb. kaliforn. Flechten. 
plus minus diseretis, demum crustam bullato-verrucolosam continuam 
formantibus, KHO—, Ca Cl, O,—; inferne rhizinis nullis, $upra 
corticatus; gonidiis pleurococcoideis; hyphis medullae substrato affixus. 
Apothecia in squamulis normaliter solitaria, rarius bina, immersa, 
vertice nigricante, punctiformi, depresso-umbilicato; perithecio globoso, 
pallido; paraphysibus indistinetis; hymenio J vinose rubente; ascis 
ventricosis, basi cuneatis, 80 « longis et 24 w latis, S-sporis; sporis 
simplicibus, hyalinis, globosis vel subglobosis, 10—12 uw in diam. 
Pyenoconidia terminalia, oblongo-cylindrica, recta, 3—4 u longa 
et 1—1'5 u lata. 
Ad saxa granitica, Palm Springs, circa 550 m s. u. [Hasse 
no. 286.] 
Habituell gleicht Dermatocarpon acarosporoides dem Dermatocarpon 
contumescens A. Zahlbr. (Endocarpon contumescens Nyl. in Flora, 
1878, pag. 341, Flagey, Lich. alger. exsicc. no. 271!), unterscheidet 
sich von diesem ausser durch den Glanz des Lagers noch durch die 
Sporenform. 
Opegrapha (sect. Pleurothecium) Umbellulariae 
A. Zahlbr. nov. sp. 
Thallus maculas formans determinatas, subrotundatas vel irre- 
sulares, 4—10 mm latas, discretas, epiphloeodes, tenuis, 70—90 w 
crassus, glaucescenti-albidus, submembranaceus, hine inde desqua- 
mescens, laevigatus, tenuiter longitudinaliter fissus, subopacus, in 
margine linea obscuriore non cinctus, KHO—, Ca Cl, O,—, ecorticatus, 
ex hyphis non amylaceis sat dense contextis formatus; zona goni- 
diali in inferiore parte thalli sita, gonidiis chroolepoideis, cellulis sub- 
globosis vel late ovalibus, 6—15 u longis, membrana sat tenui cinctis. 
Apothecia sessilia, nigra, epruinosa, set brevia, anguste oblonga, 
0’5—0°8 mm longa et 0°1—0°25 mm lata, recta vel leviter 
flexuosa, normaliter dispersa et radiatim non disposita, apieibus sub- 
obtusis, labiis erectis, tenuibus, disco rimaeformi, rarius hinc inde 
paulum dilatato, nigro, madefacto rufescenti-fusco; perithecio basi 
deficiente, fuligineo; hypothecio sat crasso, hymenio crassiore vel sub- 
aequali, pallido, J dilute coeruleo; hymenio non oleoso, 60—70 u 
alto, J cupreo-rufescente; paraphysibus filiformibus, simplicibus, esep- 
tatis, apicem versus fuscescentibus et haud crassioribus; ascis ob- 
longo-clavatis, hymenio paulum brevioribus, membrana apice leviter 
incrassata, 8 sporis; sporis in ascis subbiserialiter dispositis, dacty- 
loideo-oblongis, apicibus rotundatis, rectis vel subrectis, in medio vel 
rarius ad septa leviter constrictis, hyalinis, 3 septatis, 12—15 u 
longis et 3°5 w latis, cellulis cylindrieis, subaequilongis, membrana 
tenui, halone non praeditis. 
Conceptacula pycnoconidiorum punctiformia, globosa nigra niti- 
daque, semiimmersa, perithecio dimidiato, fusco, non celluloso; ful- 
cris exobasidüs; basidiis lageniformi-subulatis, simplicibus, dense con- 
gestis, 10—13 w longis; pyenoconidiis oblongo-eylindrieis, apicibus 
rotundatis, rectis, 3°5—4 u longis et 1 w latis. 
Ad corticem Umbellulariae californicae in montibus Santa Monica 
[Hasse no. 672 et 775.] 
