FÜNGI GÜARANITICl 279 



laevis glaber, albus, centro bordide fuscidulus, margine tenuiu- 

 sculo, obtusiusculo, hinc iudepraecipue ad partem posticam Os- 

 sus (saepe ad stipitem usque), ac irregulariter lobato-crenatus 

 undulatusque; tubuli gracillimi, ore rotundato-angulato (150- 

 200diam.), breviiisculi (1 mllm. long.), marginales vixbreviores, 

 centrales non v. vix obliqui, in stipite breviter regulariterque 

 evanescenti-deciirrentes; stipes teres, breviiisculus, subgraci- 

 lis (2-2,5 cent. long. — 5-6 mllm. crass.), erectus, sordide albo- 

 pallescens, minutissime pruinuloso-velutinus, basi vix nodu- 

 loso-adnatus, ápice abruptiuscule in pileo expansus, farctus, 

 coriaceo-sublignosus (in sicco). Ut^in praecedente, basidia spo- 

 raeque non visa. 

 Hab. Ad truncos arborum in sylvis subvirgineis prope Guarapi, 

 Dec. 1881 (sub num. 3364). 



30. PoLYPORüs (Mesopus) pseudoboletus Speg. (n. sp.) 



Diag. Coriaceo-lentns, terrestris ; pileus liemispliaerico-explana- 

 tus (5-9 cent, diam.), centro, paecipue in juventute, profunde 

 umbilicatus, glaber, concentrice irregulariterque zonato-sulca- 

 tus, obsoletissime et laxe radiato-rugulosus, primo castaneo- 

 fuscus, dein sordide fusco-siibater, opacus, cute tenui, carne 

 fibroso-floccosa, pallide ferrugiiiea v, subfulva, tenui (2 mllm. 

 crass.), margine integro non v. vix repandulo, obtusulo, fertili; 

 pori compactiu.culi, integri, aequales ore, párvulo (200-250 

 diam.), rotundato-angulato, dissepimentis tenuibus, aridis, flac- 

 cidulis, fusco-cinnamomeis, saepius abbreviati (1,5-3 mllm. 

 long.); stipes brevis, teres, lignosus(4-5 cent. long. — 6-8 mllm. 

 crass.), carne alba, intus cavus, cute crustácea, aira, opaca, 

 prnina arete adnata sordide testacea obductus, basi longiuscule 

 (2-3 cent. long. — 5-7 mllm crass.) noduloso-radicatus. Basidia 

 et sporae non visa. 



Hab. In detritis ad humum ac terram in sylvis subvirgineis prope 

 Guarapi, Apr. 1879 (sub n. 3362). 



Obs. Hymenium stipite adpressum sed in eo non confluenti-decur- 

 rens, saepeque ibi submarginatum. 



31. PoLYPORUS (Mesopus?) Lorentzianus Kalchbr. z= Fung. e Sib. & 

 Am. austr. p. 21. n. 6. 



Hab. Ad truncos dejectos putrescentes in sylvis prope Guarapi, 

 1880 (sine num.). 



