PYRENOMYCETES. 199 



fluenti-irregulares coeruleo-tulvescentes subtus pallidiores insidenti- 

 bus; sporis minutissimis oblongo-ovoideis vertice sporangii rupto 

 erumpentibus. 



Hab. In tbliis vivis (Juercus coccifera> . Montaud : Castagne. 



Familia V. PYRENOMYCETES. 



Char. emend. Nucleiis siibgelatinosus eeraceusve, asco-vel 

 sporophorus, conce|)taculo vario (intimis niatrice) receptus. 



Perithecia membranacea, carnosa, coiMiea aut carbonacea, 

 plerumque ati^a, raro lcCte colorata, sohlaiTa , aggregata aut 

 stromate communi juncta, quoad formam pen[uam varia, ovoi- 

 dea scihcet, cylindrica, imo cupulari-discoidea , complanata, 

 ssepius vero rotunda, integra aut dimidiata, ostiolo papillato 

 plus minusve elongato inslructa, ssepe poro simplici, labiatim, 

 rimose, rima singula aut pluribiis, vel circumscisse dehiscen- 

 tia, e cellulis sphiericis, polyethTS in membi\anam uni-phn-i- 

 stratosam contexhs, rariuselibris parallehterjunctis, composita. 

 Stroma iinllum aut Ibrma naturaque maxime varium, tum ver- 

 hcale, simplex aut ramosum, ovoideum, cylindroideiimaut cla- 

 vatum , tum horizonlale efhiso-applanalum , convexo-hemi- 

 sphoericum, subglol>osmn, [locuhlbrnte, lignosum, siiberosum, 

 celhiloso-aiit libroso-caiTiosum , etiam flocculoso-membi^ma- 

 ceum. Nucleus plerLinKjue mucihiginosus, bibulus, 0[)alinus, 

 firmus aut diftluens, ex ascis fixis aiit deliquescentibus s[)oro- 

 genis para[)hysibus stepiusimmixtis aiit sporis nudis sim[)liciler 

 pedicellatis constans. Asci cylindracei aut e [)yrilbrmi clavte- 

 formes, hyalini, erecHaut e parielibiisperilhecii centriim versiis 

 vergentes, spoi^is varias, lim[)idas aiit o[)acas, mono-[)leiosti- 

 chas inchidentes. S[)oriC niKkic seu acrogeuiB (id est ascis haud 

 receptse) continuse aut specie sepiatro, mono-[»leiopyrenijt;, 

 hyalinse aiit colore fiisco tinctie, [»rimitus iit [)lurimiiml sporo- 

 [)horis hiltie, nonniinqiiam ciim gelatina siib Ibrmam cirrho- 

 sam globulosamve ad matiiritatem ejiciendse. 



