336 Pyrenomycetae, Xylariaceae, Spirograimna. 



STILBOHYPOXYLON Theiss. Ann. Mycol. VT (1908) p. 344 (Etym. 

 Stilhum et Hypoxylon]. — Stroma conidiophorum subulatum, stil- 

 biforme; stroma ascophorum subglobosum sessile v. substipitatum 

 ad basim stromatis conidiophori (quod interdum ascophorum per- 

 currit et apice mucronatum reddit . Asci octospori elongati; spo- 

 ridia ellipsoidea, continua, brunnea. 



1. Stilbohypoxylon Rehmii Theiss., Ann. Mycol. VI (1908) p. 344. — 447 

 Stromate conidiophoro subulato usque ad 2 mm. alto, basi atra 

 subdilatata, sursum cinereo-pallido, apice ;equali vel subcapitato ; 

 stromate pyrenophoro globoso sessiU vel subtus stipitiformi-atte- 

 nuato, 700-950 \i.. diam. vel depresso 600 [x. alto, atro-griseo, ru- 

 goso V. verruculoso, intus subcarnoso candido, apice (stromate olim 

 conidiophoro percurrente) breviter mucronato, ostiolis atris vix 

 perspicuis; peritheciis paucis, minimis. sparsis, immersis, atris ; 

 ascis cylindricis p. sp. 75-100 'j.. longa, pedicello 35-50 |j.. longo; 

 sporidiis octonis brunneis, subdistichis, ellipticis, continuis, obtusis 

 vel hinc inde subapiculatis, gutta una magna vel pluribus pr.c- 

 ditis, 16-22^7-9. 



Hah. in ramulis emarcidis plantse scandentis in silva, Sao Leo- 

 poldo, Brasilia. 



SPIROGRAMMA Ferdin. et Winge, Vidensk. Meddel. fra den naturh. 

 Foren. Kiobenhavn |1908) p. 142 (Etym. ex lineola spirali spori- 

 diorum). — Stroma subpulvinatum, per corticem erumpens, strato 

 externo tenui, carbonaceo, fusco-nigro, intus medullaceum, niveum; 

 perithecia in singulo stromate pauca, medulla nivea immersa, o- 

 stiolis vix exsertis prredita; asei 8-spori, paraphysati; sporidi;i for- 

 ma gen. Hypoxyli, eseptata, maturitate fusca, lineoia spirali (ger- 

 minationis?) lucida circumscripta. — Genus habitu fere sectionis 

 Clitoxyli, generis Hypoxyli, ad Xylariam reapse propius accedens, 

 characteribus autem distinctis, partim sporidiorum, partim stro- 

 matis satis diversum. 



1. Spirogramma Boergesenii Ferdiu. et Winge, Vidensk. Meddel. fra 447( 

 den naturh. Foren. i. Kiobelmavn (1908) p. 143, tab. IV, fig. 3. 

 — Stromatibus ligno insidentibus, per corticem erumpentibus, se- 

 migloboso-pulvinatis, rugulosis, ad basim coustrictulis, deusiuscule, 

 nonnumquam subseriatim dispositis, raro 2-4 confluentibus, strato 

 externo tenui, carbonaceo, fusco-nigro, intus meduUaceis, niveis, 

 1-2 mm. diam. ad 1 mm. alt. ; peritheciis in singulo stromate 2-6, 

 in meduUa interiore immersis, pro ratione maxirais, globosis, in- 



