fungí guaranitici ^71- 



Hab. Ad truncos ac ramos dejectos putrescentes in sylvis subvir- 

 gineis prope Paraguarí, Jul, 1883 (sub num. 3919). 



Obs. Euhypoxylon; stromalate effusiim,fereCorííaVspeciem quam- 

 dam simulans, margine determinato, repando-sinuoso, latiuscule 

 sterili, V. matrici subdiscreto, laevi centrum versus gradatim 

 pulvinato-undulatum, obsolete granulosum, minutissime prui- 

 nulosum-furfuraceum, primo croceum, dein sordiderubiginosum, 

 postremo fuscescens; perithecia monosticba, obovata (600x400- 

 450), tenuia.submembranacea, fusco-atra,substantia stromatica, 

 superne sanguínea inferné fusca, inmersa, ostiolo non v. vix stro- 

 matis superficem attingente exertoque^ minutissimo donata; asci 

 cylindracei, antice rotundati, postice attenuato-stipitati (55-60 

 X6-7), paraphysibus filiformibus, subseptnlatis, densis obval- 

 lati, octospori; sporae oblique monostichae, ellipticae, rectae v. 

 subnaviculares (9-H X 5-6,5), primo grosse 2-guttulatae, dein 

 opace fuligineae. 



196. Hypoxylon nectrioide Speg. (n. sp.) 



Diag. Euhypoxylon; stromata tuberculoso-pulvinata, pulvinulis ir- 

 regularibus, sparsis v. bino inde aggregato-confluentibus (3-5 

 mllm. lat. X 0,5-1 mllm. crass.), margine determinatis atque 

 subcoarctatulis, primo rubris dein rubiginosis, pruinuloso-fur- 

 furaceis v. squarrulosis; peritbeciain pulvinulis ad médium fere 

 usque prominula, globulosa, extus rubiginoso-squarrulosa, hy- 

 phis repentibus septulatis (3-3, 5 crass.) ornata, intus carbona- 

 cea, atra, ostiolo mammillato, ápice discoideo-applanato ( 150 

 diam.) ac medio poro (50-70 diam.) pertusum donata; asci mox 

 diffluentibus, parapbysibus densis obvallati; sporae ellipsoideo 

 naviculares, utrinque obtusiusculae ( 12-15 x 7), opace fuligi- 

 neae. 



Hab. Ad corticem putrescentem arborum frondosarum in sylvis 

 prope Guarapi, Jul. 1881 (sub num. 2762). 



Obs. Species pulcbella externa facie formae depauperatae ac sene- 

 scentis Nectriae cinnabarinae (Td.) Fr. simillima. 



197. Hypoxylon ALBO-STiGMATOSUM Speg. (n. sp.) 



Diag. Placoxylon; stroma late effusum (5-25 cent. X 0,5-1 mllm.), 

 crustaceum, durum, superne applanatum, plus minusve scru- 

 poso-undulatum, margine non sterile, repando-sinuosum, sór- 

 dida rubiginosum v. fusco-ferrugineum, non v. obsoletissime 



