pungí guaranitici 47 



granulosis, glabris; peritheciis peripliaericis, dense constipatis, 

 obovatis, non v. vix prominulis, ostiolo vix papillulato, imma- 

 turis; ascis sporisque desideratis. 



Specimina guaranitica cum iconibus Tulasnei perfecte habitu 

 externo congruunt, et vix a descriptione recedunt stipite sub- 

 flaccidulo ac minute furfuraceo-velutino. Cordyceps australis 

 Speg., Fung. Arg.. pug. IV. n. 208, longe abhorrens nec qui- 

 demcomparandus. 



255. Epichloe? nigricans Speg. (n. sp.) 



Diag. Stromata partem breviusculam (5-10 mllm. long.), sub 

 nodis culmorum, infectantia, non v. vix eara tumefacientia sed 

 nigrificantia tenuia (250-300 crass. ), in juventute molliuscula 

 intus alba, in senectute subcfustaceo-fragilia, intus fuscescentia, 

 laevia; perithecia (an loculi?) stromate immersa, densissime 

 constipata elliptico-ovata, basi saepius truncata, minuta (140- 

 150 alt. x50-80 crass.), ostiolo perforato stromatis snperficem 

 vix attingente donata ; asci cylindracei v. subfusoideo-cylin- 

 dracei, antice rotundati, crassissimeque tunicati, luce refracta 

 bifoveolati, postice attenuati ac breviter pedicellati (p. sp. 90- 

 100x4-5=ped. 15-20x1-2) aparaphysati, octospori; sporae 

 fasciculatae, ñliformes (70-80x0,6-0,8), laxe septnlatae, 

 rectae, byalinae. 



Hab. Ad culmos vivos Graminaceae minoris cujiisdam in pratis 

 prope Guarapi, Jan. 1883 (sub num. 3741 ). 



Obs. Species pulchella et facile ad Dotbideaceas transferenda ; a 

 E. strangulaníe Mntg., ut videtur, satis recedit. 



ínter peritbecia ascigera adsunt nonnulla spermatioforas , 

 omnia simillima; spermatia fusoideo-clavulata, utrinque atte- 

 nuata, ápice truncato-rotundata, basi elongato-acutata, subinae- 

 quilateralia (15-20x1-1,5), non v, pluriguttulata, hyalina, 

 in sterigmatibus fusoideis (7-8x1), utrinque attenuato 

 truncatis, exsurgeutia. 



256. Hypocreella? guaranitica Speg. (n. sp.) 



Diag. Stromata hypopbylla, globosa (1,5-2,5 mllm. diam.), den- 

 siuscule gregaria rarius confluentia, superficialia, minute 

 laxeque papillulosa v. granulosa^ glabra, extus fusco-ferruginea 

 V. fusco-atra, intus albo-fuscescentia, viva carnosula, sicca 

 dura; perithecia in stromate periphaerica globosa v. elliptica 



