— 6 — 



Obs. Caro pilei tenuis vix centro bene evoliita, alba, sub- 

 exsucca, flocculosa, sub sectione diliite fuscescens ; illa 

 stipitis fibrosa tenacella, alba; velum nullum ; cutis 

 pileo facile separabilis ; odor fiingiiius gratus saporque 

 acidulus parum manifestus. 



Species notis nonnullis Cortinario talo Fr. acce- 

 dens, sed characteres sporologici deficiunt. 



3. Agamcus (Clitocybe) tehuelches Speg. (n. sp.). 

 Diag. Cyathiformis ; pileus bemisphaericus v. lenticiüa- 



ris, centro plus minusve umbilicatiis (10-15'" diam.), 

 extrius, testaceus v. testaceo-rubescens, margine inte- 

 gro, obtusulo, repandiilo, hygrophanus (?). Lamellae 

 paucae, distantes, crassiusculae, non raro deorsum con- 

 fluentes, arcuatae, dimacriae, antice obtusiuscule acu- 

 tatae, postice acutato-decurrentes, albo-ceraceae v. sub- 

 roseolae, acie integra, crassiuscula, saepius fuscescente 

 donatae. Stipes saepius deorsum attenuatus, lamellis 

 concolor, glaberrimus, laevissimus, vix pruinuloso-ra- 

 dicatus, farctus (10-12'" long. X 2'" crass.). 



Hab. Ad terram muscosara in Gregory bay in F7'eto ma- 

 gellanico, April. 1882. 



Obs. Caro stipitis et pilei lamellis arete adnata, hygro- 

 phana, carneóla, succosa. Sporae albae. 



Species ad Omphalias nonnihil vergens et Ar/. j)yxi- 

 dato Bull. próxima. 



4. Agaricus (C¿iíocf/5e) patagonicum Speg. (n, sp.). 

 Diag. Pileus primo bemisphaericus dein explanato-um- 



bilicatus (1-2" diam.), laevissimus, glaberrimus, mar- 

 gine integer plus minusve undulato-repandus, laxe et 

 vix manifesté striatus (non plicatus), sordide albus v. 

 albescenti-cinerascens, hygrophanus. Lamellae subcon- 

 fertae, polimacriae, arcuatae (2'" lat.), antice obtu- 

 sato-rotundatae, postice attenuato-decurrentes, a sti- 



