fungí guaranitici 275 



dense majusculeque granulosum, atrum, glabrum, opacum; 

 peritliecia densissime conferta, globulosa v. obovata, majuscula 

 (550-780 diam.), parce e stromate prominula atque ápice mi- 

 nute discoideo-depressa, disculo marginato medio papillato- 

 ostiolato ; asci cylindracei, antice rotundato-truncati, postice 

 longissime attenuato-pedicellati (p. sp. 55-65x2,5)* octospori, 

 paraphysibus paucis, exillimis, subfluxilibus obvallati; sporae 

 recte laxeque monostichae, elliptico-elongatae (6-7x2,5) utrin- 

 que late rotundatae, leniter inaequilaterales, non v. 2 guttula- 

 tae, opace fuligineae. 



Hab. Aá truncos emortuos non putrescentes £'t¿^enme, species 

 cujusdam, in nemorosis prope San Tomas, 15 Dic. 1882 (sub 

 num. 3766). 



Obs. Species H. effusi Nitz. peraffinis ; an tantum ejusdem va- 

 rietas? 



205. Hypoxylon caaguazu Speg. (n. sp.) 



Diag. Placoxylon; stromata matrice denudata ac nigrificata insi- 

 dentia, latiuscule effuso-pulvinata (5-10 cent. diam.=l-l,2 

 mllm. crnss.), ambitu repaudula, quandoque rotundata quan- 

 doque effusa, superficie scrupuloso-undulata ac per aetatem 

 saepius dense minutissimeque diffracto-rimulosa, confertissime 

 papilluloso-aspera, fusco-atra, opaca, glabra; perithecia globu- 

 losa, minuta (200-250), densissime stipata, couoideo-prominula, 

 ostioloque parvulo-coronata, atra, carbonacea, strato stromatico 

 tenui, fusco-fibrosulo insidentia; asci et paraphyses mox fati- 

 scentes ; sporae oblique monostichae, naviculares, utrinque acu- 

 tato-Totundatae (9-11x4-5), opace fuligineae. 



Hab. Ad ligua pútrida in umbrosis prope Paraguari, Jan. 1882 

 (sub num. 3359-3360). 



Obs. Species pulchella ac satis distincta, in inventute plurimis 

 characteribus H. fusco-purpureo (Sw.) Brk. ac H. vinoso Mntgn. 

 ut videtur affinis. 



206. Hypoxylon turbinatum BQi\.=Speg. Fung. Arg. pug. IV 

 n. 134. 



Var. GUARANiTicuM Speg. 

 Diag. Euhypoxylon; stromata obconica, solitaria v. dense gregaria, 

 rarissime conñuentia, superne applanato-truncata (7-8 mllm. 

 alt.=9-16 mllm. diam. sup.), margine recto, prominulo, obtuso, 



