Perisporiaceae, Perisporiese, Chsetomidium. 39 



ribus, paraphysibus simplicibus obvallatis, apice rotundatis, octo- 

 sporis; sporidiis raoQOstichis initio sphsericis, subhyaliuis, dein elli- 

 psoideis, fuligineis, 12-13 =; 9-10, uniguttulatis. 



Eab. in thallo Lecanorse tartarese near Dolgelly North 

 Wales (Leighton). 



THIELAVIA Zopf. in Verhand. bot. Ver. Brandenb. 1876, p. 101 (Etym. 

 ab F. V. Thielau). — Perithecia e ramo mycelico spiraliter con- 

 voluto (carpogonio) oriunda, sphaerica, minuta, astoma ; asci copio- 

 si ovati, octospori ; sporidia oblonga (cucumeriforraia) badio-f usca, 

 continua. — Mycelium conidiophorum fuscum, septatum, ramis in 

 conidia fatiscentibus. In eodem mycelio nascitur Torula basicola 

 Berk. statum conidicam alterum hibernantem sistens. Spermogonia 

 minuta sph^rica, vertice setulis coronata, spermatiis minutissi- 

 mis foeta. 



1. Thielavia basicola Zopf. 1. c. Charact. generis. 160 



Hab. in partibus subterraneis Senecionis elegantis quem 

 maxime vexat in Horto Berolinensi. — Rami mycelici fertiles 

 170^10. Spermogonia 80-100 y-. diam. Perithecia ascigera 80-130 

 u.. diam. 



CH>ETOMIDIUM Zopf. (ut subg.) Entwick. d. Ch^tora. p. 280, t. XVIIL 

 fig. 12-18 et t. XIX, fig. 1-12 (Etyra. a Chcetomio, quod cfr.). — 

 Perithecia globulosa superficialia, astoraa setosa, nigrae ; asci cla- 

 vati octospori; sporidia globoso-ovoidea, fusca. — Est Chceto- 

 mium prorsus astomum. 



1. Chsetomidium fimeti (Fuck.) Zopf. 1. c. Chcetomium fimeti Fuck. lei 

 Enum. F. Nass., p. 64 et Symb. Mycol. p. 90. — Peritheciis glo- 

 bosis V. ovoideis, atris, astomis undique subulato-setulosis basi 

 pilis rhizoideis longissimis repente-divaricatis, concoloribus cinctis, 

 usque mediura brevissime denique superne levibus, nitidis; ascis 

 majusculis, clavatis longe stipitatis, 40-48 = 14-18 (p. sporif.) spo- 

 ridiis ellipsoideis, fuscis, 14-16 ^ 12, lenissirae compressis. 



Eab. in firao equino in pratis CEstrich, Berlin, in Gerraa- 

 nia, Briinn in Moravia. 



ASTERINA Lev. Ann. Scienc. nat. 1845. III. p. 59 (Etym. aster, quia 

 mycehum radiosum). — Perithecia in raycelio maculiforrai radioso 

 atro subsuperficiali (rarius subinnato) insidentia, lenticularia v. 

 globoso-depressa, subastoraa, membranacea. Asci potius breves et 



