I 



88 Hymenomycetae, Ag^aricaceae, Ochrosporae, Inoc^-be. 



— G-regaria v. subcaespitosa. rarius solitaria; pileo primo isabel- 

 lino V. umbrino ovato, plus minusve grossp acuteque umbonato, 

 margine integro stipiti adnexo. velo araneoso ex albo subcarneo 

 parce continuato, dein gradatim expanso et 2-6 cm. diam., po- 

 stremo smpe plano v. revoluto, sed seraper grosse acuteque um- 

 bonato, centro fulvo. ambitu sordide e stramineo ochroleuco, mar- 

 gine obtuso, radiati^n dense minuteque fibrilloso v. subsquamuloso, 

 subhygrophano, in sicco plus minusve sericeo-nitente ; carne com- 

 pactiuscula, fibrosula, scissili, alba v, vix pallescente, ad umbonem 

 fere tantum evoluta. 3 mm. crassa; stipitc erecto, recto, ^'/^-B cm. 

 longo, 3-4 mm. crasso vel subflexuoso, albo v. postice plus mi- 

 nusve rufescente, saspius minuto adpresseque longitudinaliter fi- 

 brilioso, fibroso, farcto, tenacello, mycelio vix radicato; lamellis 

 confertis, membranaceis, plus minusve crassiusculis, antice atte- 

 nuato- V. rotundato-acutatis, postice adnatis v. sinuato-adnatis, 

 sordide e testaceo olivascenti-lateritiis, acie integris ; .sporis ovatis, 

 rrrosse laxeque angulato-tuberculosis. ochraceis, 8-12 * 4-8; basidiis 

 eHiptico-clavatis v. clavato-fusoideis, 40-55^12-18; cystidiis cla- 

 vulatis V. subfusoideis, 45-60 « 12-14. 



Hah. ad terram in umbrosis, Parque de La Piata Argentinje. 



— Species valde variabilis, varietates complures inciudens. 

 2. Inocybe platensis Speg. Fg. Arg. uovi v. crit., p. 124 (1899). — ^ 



Subcaespitosa v. laxe gregaria; pileo carnosulo, primo ex ovato 

 acute piriformi, '2-4 cm. lato, 1-1'/, cm. alto, dein plus minusve 

 explan:ito v. revoluto, sed semper gro.sse acutiusculeque umbonato, 

 levi, integro v. modice rimoso, glabro, sed dense minute adpres- 

 sis.simeque radiatim fibrilloso, subsericeo-nitente, amcene intense- 

 que e rufo luteo v. ocliraceo, margine acuto integro; carne tenui, 

 ad umbonem crassa, ambitu subevanida. sordide albescente v. fla- 

 vescente; stipitjc tereti v. compresso, 4-5 cm. longo, 5-8 mm. cr., • 

 ex aureo ocbraceo, apice albcscente, plus minusve sericeo-nitente, 

 longitudinaliter densiusculeque minuteque fibrilloso, sed glabro, te- 

 nacello, in jnventute farcto, per aetatem cavo; velo mox evanido, 

 in prima aetate mai'ginali, araneoso, luteacente; lamellis 3-5 mm. 

 latis, confertiusculis. membranaceis, polymacriis, a<'ie integris. an- 

 tice attenuato-acutis, postice adnatis, non v. vix sinuatis saepeque 

 denticulo subdecurrentibus, amcene lutescenti-ferrugineis; sporis 

 elliptico-ovatis, dense minuteque papilloso-asperuiis. grosse 1-gut- 

 tulatis, 8-10 »5-6; basidiis clavulatis, 30^9-10, hyalinis. 



Hah. in herbosis umbrosis, Parque de La Plata Argentinse. — 



