244 ANALES DE LA SOCIEDAD CIENTÍFICA ARGENTINA 



Obs. Sub hoc nomine Sinik-lagaraik (trad. litt. pestis nigra) int;o- 

 lae barbari omnes morbos foliorum plantarum indicant. 



274. Phyllachora? peribebuyensis Speg. (n. sp.) 



Biag. Maculae orbiculares, densiuscule sparsae, amphigenae, sub- 

 determinatae, centro arescenti-fulvescentes, fusco v. purpureo- 

 areolatae (3-4 mllm. diam.); stromata bypopbylla in centro ma- 

 cularum solitaria, rarius 2-3-aggregata, lenticularia v. globu- 

 losa, párvula (0,5-1 mllm. diam.), superne applanatula, inferné 

 a matrice libera, yíx centro subpedicellato-adnata, convexula, 

 glabra, non v. minutissime rugulosa, atra, cortice subearbona- 

 ceo, pulpa subcarnosula, olivaceo-fuliginea donata, contextu 

 indistincte parenchj'^matico-celluloso; loculi in disco supero 

 dense constipati, globulosi v. e mutua pressione angulosi (450- 

 250 diam.), nucleo-albo farcti; asci cylindracei antice rotun- 

 dati, postice longiuscule attenuato-pedicellati (p. sp. 80-90 

 x9-ll), oetospori, paraphysibus filiformibus, simplicibus, den- 

 siusculis obvallati; sporae oblique monostichae, ellipticae, 

 utrinque acutiuscule rotundatae (15-18 X 6-8), primo granu- 

 loso-farctae, dein grosse 1-guttulatae^ byalinae v. dilutissime 

 olivascentes. 



Hab. Ad folia viva Melastomaceae cujusdam in sylvis prope Peri- 

 bebuy et Carapeguá, p. ann, 1879-83 (sub num. 3479, 3894). 



Obs. Species ab lioc genere uonnibil desciscens etgeneri Bagnisiel- 

 lae accedens, ab utroque tamen satis distincta; an novum ge- 

 nus ? Externa facie Phacidii species nonnuUas simulans. Jodi 

 ope túnica ascorum vix coerulescit. 



275. Phyllachora pestis-nigra Speg. (n. sp.) 



Diag. Stromaparummanifestum, innatum, ramulos foliaque omnia 

 ac tota ambiens eaque tamem vix deformaos, sed intense nigri- 

 ficans ; loculi parenchymate immersi, vix ad epipliyllum promi- 

 nuli ac perspicui, minuti, globoso-lenticulares (100-150 diam.), 

 densiuscule sparsi, non confluentes, epidermidé tecti, afcri, glabri 

 V. vix rugulosi, coriaceo-carnosuli, contextu indistincto, extus 

 nigro, intus albo; asci clavulati v. cylindraceo-clavati, antice 

 obtuse rotundati, postice vix attenuati, breviter crasseque pedi- 

 cellati (40-50x10-12), aparapbysati, oetospori; sporae disti- 

 cbae V. oblique monostichae, ellipticae, utrinque plus minusve 



