— 516 — 



Obs. Stromata sparsa v. hinc inde laxe gregaria erecta rí- 

 gida fragilia, extus atra v. atro-fusca, intus albo-farcta; 

 stipes subcylindraceus teres v. subcompressus plus mi- 

 nusve evoUitus (2-5'" Ig. x 1'" crs.) in juventute dense 

 minuteque atro-hirsutus in senectute saepius ^labratus 

 longitudinaliter rugosus abrupte in clavula prodiictus ; 

 clavula recta erecta forma magnitudineque varia, ápice 

 sterili millo (lO-io'" Ig. X 2,5-4'" crs.), iibi(|iie dense 

 grosseque tuberculato-torulosa ob perithecia siibde- 

 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 ápice sub- 

 truncato-rotundati crassissime tunicati deorsum in pedl- 

 cello longiusculo attenuati (p. sp. 200x8-10 y- — pd. 

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

 spori; sporidia recte monosticha cymbaeformia (20-22 X 

 6-7 y) u trinque acutiuscule obtusata continua subopace 

 fuliginea, Species pulchella minuta pluribus alus affinis, 

 sed notis fructificationis ac liabitu mox dignoscenda. 



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



Diag. Xylocoryne; clavula ovata atra, minute cinereo-tigrina 

 stipite aterrimo velutino ; perithecia majuscula immersa 

 globosa; asci cylindracei aparaphysati ; sporidia cylin- 

 draceo-subnavicularia fuliginea. 



Hab. Ad ramos dejectos putrescentes sub folia sternata in 

 sylvis prope Apiahij, Apr. 1^88 (sine n.). 



Obs. Stromata solitaria erecta Simplicia ; clavula ovata v. 

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

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

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

 nulis, areola polygona angulosa (200-600 y dm.) ciñera- 



