fungí guaranitici 39 



Hab. Ad corticem ramorum putrescentium in dumetis Cerro Hu, 



17 Jan. 1882 (sub num. 3420). 

 Obs. Species primo obtutii pro A', vulgari Speg. facillime sumenda, 



sed satis ab illa abhorrens. 



239. Nectria vagabunda Speg. (n. sp.) 



Diag. Peritliecia epiphylla, sparsa, solitaria v. 2-5-aggregata, 

 hypothallo candido, furfuraceo-v. velutiuo-tomentosulo insiden- 

 tia basiqne vestita, sicca cupulato-collapsa, uda globulosa (150- 

 350 diam.), ex albo aurantiaca, laevia, glabra v. puberula, 

 teniiissime ceraceo-membranacea, contextu indistincto; asci 

 clavati, antice rotiindati, postice breviter crasseque stipitati 

 (50-55x15), paraphysibus densis, filiformibus, simplicibus 

 obvallati, octospori; sporae distichae v. inordinate polj^stichae, 

 ellipticae, utrinque obtusiuscnlae (12x4,5), medio 1-septatae, 

 constrictae, hyalinae. Jodi ope nulla. 



Hab. Ad folia viva Bambusaceae cnjusdam in Pastoreo de Caá- 

 guazú, Jan. 1882 (sub num. 3445). 



Obs. Species pulchella, mox dignoscenda, ac novi generis (Lasio- 

 nectria Speg.) facillime typuní sisteus. 



240. Nectria epichloe Speg. (n. sp.) 



Diag. Perithecia matrice saepius infuscata (macula effusa,brunnea, 

 non determinata) insidentia, hypothallo furfuraceo-pruinuloso, 

 candido donata, densissime subcrustaceo-aggregata, pallide 

 aurantiaca v. fulvo-mellea, sicca subcupulato-collapsa, ruga 

 transversa prominula percursa, uda globosa (80-120 diam.), 

 glabra, laeAia, carnosula, contextu minutissime ac indistincte 

 parenchymatico-celluloso, fulvello; ascifusoideo v. cylindraceo- 

 clavati, ápice truncati, crassiusculeque tuuicati, deorsum mo- 

 dice attenuato-stipitati (50-55x7-8), paraphysibus paucis, 

 filiformibus simplicibus obvallati, octospori ; sporae ellipticae 

 V. elliptico-ovoideae, utrinque acute rotundatae (9-11x3-4), 

 primo continuae, dein medio 1-septatae, non constrictae, loculis 

 non V. guttulatis, hyalinae. 



Hab. Ad vaginas ac folia viva Andropogonis species cujusdam in 

 pratis prope Guarapí, Dic. 1882 (sub num. 3432). 



Obs. Species pulcherrima distinctissima, habitu Epichloem typhi- 

 nam (Pers.) Tul. perfecte aemulans, characteribus fructifica- 



