SPEGAZZINI: FUXGI AEGEXTIXI. 99 



integrae utrimque late rotmidatae. membranaceae sublaxiu- 

 sculae a stipite liberae sed subadnexae; sporae late ovatae (6 - 

 6 [^ loug. =^3-3,5 :•»• diam. ) non v. grosse 1-v. 2-guttulatae 

 laeves e li^^alino perdilnte clilorinae. 



Sj)ecies 23ulcliella distinctissima. sporis tamen leniter colora- 

 tis (praecipue in senectute) a genere nonnihil recedens. 

 25. Armillaria saltensis ^peg. (n. sp.j. 



Diag. CoUyhia/ anmilata, gregaria, pileo lienmphaerico 

 exumbonato albo -rubescente squamuloso, lamelUs confertis crax- 

 siusculis smuaüs aJbo-pallesceutihus, stipite albo terete laevi i\ 

 stibsquamuloso farcto, annulo tenui fiigace. 



Hab. In herbosis rui^estribns in Pampa grande, prov. Salta, 

 Jan. 1897. 



Obs. Plns minas ve dense gregaria ; pilens eonvexns liemi- 

 spbaerico-applanatiis (8-10 cm diam.) exumbonatns, rube- 

 scente- albus, squamis tennibns latís adj)ressis majusculis ob- 

 scurioribus confertis lieterogeneis vestitus, cute crassa facile 

 secedente tectus. margine acutiuscnlus integer; caro alba com- 

 pacta glutinosa insipida crassiuscula (-i-Q mm crass. ) ; lamellae 

 confertae crassiusculae latae (30-35 mm long. — 12-14 mm 

 lat.) postice sinuatae antice rotundato-obtusatae, ex albo pal- 

 lescentes subceraeeae. acie integrae fragillimae: stipes ere- 

 ctus teres (8 cm long. =12-15 mm diam.) ápice albus ce- 

 terum pileo concolor, laevis v. vix bine inde sitbsquamosus 

 basi non y. vix incrassatus, fibroso -tenacellus sed non veré 

 cartilagineus, farctus. carne fibrosa compacta, in senectute 

 submucosa: annulus adquartum stipitis superum membrana- 



ceus tennis facillime frustulatim evanescens. Sporae 



Odor nuUus. 

 2<i. Armillaria argentina Sjjeg. (n. sp.). 



Diag. Collybia annnlata, píleo rufo-virescente umbonato laevi 

 glabro, lamelUs rotundato-simiatis subvirescentibus, stipite cy- 

 lindraceo suhcavo glabro laevi pileo concolore, annulo fibrill oso - 

 squamuloso fugace. sporis laevibus minorihtis. 



Hab. Ad terram liumosam ^an in m^'celio íreastri cujusdam? ) 

 prope La Plata, Jan. 1889. 



Obs. Pileus primo e globoso liemisphaericus v. subovatus, 

 margine obtusus atque subinvolutus, dein campanulatus \. lie- 

 misphaerico-expansus, margine non v. vix subrevolutus (25- 

 30 cm diam.) obsolete crasseque umbonatus laevis glaber, in ju- 

 ventute pallescente v. lutescente-virescens, amljitu pallidior. })er 



