138 



Obs. Stroinata sparsa v. liiiic iiidc laxc gregaria crccta ri- 

 gida Iragilia, cxtiis atra v. atro-fusca, intus albo-farcta ; 

 stipcs subcylindraceus teres v. subcompressus plus mi- 

 nusve evolutus (2-5'" Ij^. x 'I'" crs.) in juventutc dense 

 minutcquc atro-hirsutus in scnectute saepius f^labratus 

 longitudinalitcr rugosus abrupte in clavula productus ; 

 clavula recta erecta forma magnitudinecjue varia, apice 

 sterili nuUo (10-15"' Ig. X 2,5-4'" crs.), ubique dense 

 grosscquc tuberculato-toruiosa ob perithecia subde- 

 mersa, extus atro-fusca glabra, intus pulpa sublignea 

 alba farcta; perithecia majuscula (600-1000/^- dm.) glo- 

 bosa, stromate plus minusve insculpta ac prominula, 

 atra, extus (sub lente) minutissime ruguloso-rimulosa, 

 centro ostiolo minuto papillulato obtuso donata, intus 

 pulpa mucosa fusca repleta ; asci cylindracei apice sub- 

 truncato-rotundati crassissime tunicati deorsum in pedi- 

 cello longiusculo attenuati (p. sp. 200X8-10 /^ pd. 

 50-70 X 3-5 m) paraphysibus filiformibus obvallati octo- 

 spori; sporidia recte monosticha cymbaeformia (20-22 X 

 6-7 /*) utrinque acutiuscule obtusata continua subopace 

 fuliginea. Species pulchella minuta pluribus aliis atfinis, 

 sed notis fructificationis ac habitu mox dignoscenda. 



270. Xylaria tigrina Speg. (n. sp.) 



Diag. Xylocoryne; clavulaovata atra, minute cinereo-tigrina 

 stipite aterrimo velutino; perithecia majuscula immersa 

 globosa ; asci cylindracei aparaphysati ; sporidia cyiin- 

 draceo-subnavicularia fuliginea. 



Hab. Ad ramos dejectos putrescentes sub folia sternata in 

 sylvis prope Apiahy, Apr. 1888 (sine n.). 



Obs. Stromata solitaria erecta simplicia ; clavula ovata v. 

 elongato-ovata integra obtusa (10-12'" Ig. X 7-8'" crs.) 

 inferne abrupte coarctata, intus alba farcta, extus atra v. 

 fusco-atra undique fertilia ac ostiolis non v. vix promi- 

 nulis, areola polygona angulosa (200-600 /^- dm.) cinera- 



