fungí güaranitici 245 



leniter minuteqae siibrepandulo-undulato, glaberrimus, lae- 

 vissimus, radiatim laxe modicissimeque subcostiilatus, ac plus 

 minusve manifesté ruguloso-reticulatus, albus v. albo-palle- 

 scens (fulvescenti-testaceiis, in sicco!), centro vix fuscescens ; 

 lamellae remotae, strictissimae (0,5-0.8 inlim. lat. centr.), 

 membranaceae, colore et consistentia pilei, polymacriae, utrin- 

 qne attenuato-acutatae, longiores deorsum breviter dentículo in 

 stipite decurrentes, rugis gracilibus sed plañe conspicuis, trans- 

 versis, marginem versus nullis, centro subconfertiusculis, irre- 

 gulariter fenestratim conjunctae; stipes teres, gracilis, erectus, 

 rectus (4-5 cent. long. — 2 mllm. diam.), pileo obscurior (fulves- 

 centi-brunueus,. in sicco!), glaberrimus, laevissimus, tenui 

 membranaceo-subcartilagineus, latissime fistulosus, basi non 

 V. vix subattenuatus, abrupte nuduloseque in mycelio albo- 

 fibroso latiusculo ac densiusculo radicato-expansus. Basidia et 

 sporae non visa. 



Hab. In sylvis subvirgineis ad folia ac ramenta dejecta putre- 

 scentia prope Guarapi, Jan. i 880 (sub num. 3380.) 



ubs. Species sectionis dubiae ob sporas desideratas, a genere Agá- 

 rico Fr. satis abhorrens, et Marasmium Fr. v. melius Heliomy- 

 cetem Lev. (prope H. pythirodemLév.) accedens. 



6. Agaricus (Mycena) corticola Pers.=Fr. Hym. Eur. p. 152. 

 Hab. Ad corticem rimulosum arborum ínter muscos, in collinis 



Cerro pelado vocatis, prope Paragiiarí, 10 Jun, 1881 (sub 

 num. 3407). 



7. Agaricus (Omphalia?) paraguariensis Speg. (n. sp.) 



Diag. Mycenarius, campanella, 15-30-fasciculato-coespitosus, 

 truncigenus; pileus subcarnosulo-membranaceus,hemisphaerico- 

 expansus, centro abrupte umbilicatus (1-2 cent, diam.), albus 

 medio fuscescens, margine rectus, tennis (pellucidus, saepe in 

 sicco), integer, latiuscule striatus; lamellae membranaceae, 

 subconfertiusculae, trimacriae, utrinque acutae, postice conspi- 

 cue latieres atque regulariter adnato-subdecurrentes, acie inte- 

 gerrimae, pileo concolores; stipes longiusculus, gracilis (5-8 

 cent. long. — 1-1, 5 mllm. crass.), teres, late fistulosus, cortice 

 tenui, fibrosulo-tenacella, fuscescenti-albus, glaber, basi con- 

 fluenti-fasciculatus, nodulum obconicum (1,5 cent. long. — 4-7 



