6 ANALES DE LA SOCIEDAD CIENTÍFICA AIIGENTINA 



(1-1,5 cent. diain.\ horizontalis, margine undulatus vepandusve, 

 albiis, primo subtilissinie pniiinilosus deia glabratus laevis 

 teuiiis mollis; caro vix cvoluta alba; lamellae in latere majore 

 pilei tantiim eVolutae, polymacriae, confertissiinae, strictissi- 

 mae, tenues, acie integrae, utrinque acutatae, ápice stipitis 

 subcollariato-adnatae v. subdecurrentes, in vivo albae, in siceo 

 rufescentes; stipes verticalis, plus minusve excentricus, bre- 

 viusculus (SXlmllm.) albus, glaber v. vix subpruinulosus, 

 basi non incrassatus mycelio plus minusve radiatim expanso 

 adfixus; basidia obclavulata (16-18 X 4 ¡x), 2-3-sterigmato- 

 phora; sporae ovoideae v. subglobosae (4-6 [;. diam,\ non v. plu- 

 riguttulatae, hyalinae. 

 Hab. Ad radices putrescentes in sylvis subvirgineis prope Peri- 

 bebuy, 1 Nov. 1883 (sub num. 4095). 



5. Panus conchatüS Tr. — Saco., Syll. hym. I, p. 615. 



Hab. Ad truncos emortuos in sylvis montanis Sierra de Peribebuy, 

 1 Nov. 1883 (sub num. 4091). 



Obs. Species pulchella distinctissima a mycologis nonnuUis cum 

 Lentino Lecomtei Yv . confusa a quo taraen longissime abhorret 

 nec quidem comparanda. Specimina guaranítica coespitosa, pileo 

 cervino infundibuliformi-spathulato, superno adpresse minute- 

 que squamuloso-furfuraceo, margine dense velutino-hispido, la- 

 mellis confertis latiusculis e rufescenti carneis acie integerri- 

 mis donata. 



6. Panus guaraniticus Speg. — Fung. guar. pug. I, n. 23. 



Hab. Ad truncos dejectos putrescentes prope Guarapi, Oct. 1883 



(sub num. 4092). 

 Obs. Species praecedenti peraffinis sed satis distincta, pileo rigi- 



diore lobato fissove cutique vix squamulosa tecto, margine laxe 



puberulo-hispido lamellis magis confertis atque strictioribus; 



variat nunc dimidiato-spathulata subsessilis, nunc stipitata 



infundibularis lobato-fissa. 



7. PoLYPORUS (mesopus) guarapiensis Speg. (u, sp.) 



Diacj. Lentus, truncigenus; pileus subhemisphaericus profunde 

 umbilicatus excentricus (4-5 cent, diam.), lentus, subtenax, 

 etiam in sicco flexilis, laevis, glaber, margine acutissimo inte- 

 gerrimo explánate vix undulato donatus, sórdido testaceo-rufe- 



