— 8 — 



nicus, postice attcmiatiis, basi rotuiulatus parcissimequc 

 radicatus, farctus carneo-fuscus v, melleo-fulvus. Caro 

 in pileo tenuis, in stipite librosulo-compactiuscula, 

 fusco-carnea, liygrophana. 

 Hab. Jn campis praccipue ad cocspites azorellarum 

 (tucala abincolis vocatos) prope UsJiuvaia, Maj. 1882. 



9. Agaricus (con^biia) usHuvAiENSis Speg. (n. sp.) 

 Diag. Pileus subhcmisphaerico-explanatus (4" diam.), 



late grosscfjuc umbonalus, laevissimus, glaberrimus vix. 

 udus viscosus, castaneo-fuscus v. testaceo-fuscescens, 

 inargine integer v. vix rcpandulus ; lamclle fusco-albi- 

 cantes, latae (1" lat.) polymacriae, confertiusculac, 

 longe sinuato-adnatae, crassiusculc mcmbranaceae, acie 

 integcrrimae, pallidiores; stij)es j)ro ratione curtus 

 crassusque (5-5,5" long. x 1" diam. sup. = 1,5-2" 

 diam. iuf.), vicies tortus, glaberrimus, vix ininutissime 

 torto-fibrillosus, pileo concolor, supcrnc pallidior, farc- 

 tus, mycclio parco albicantc ornato. Caro llaccidula, 

 albo-fuscescens, illa stipitis fibrosula tcnacclla. Yclum 

 nullum. 



Hab. In sylvis fagineis prope Ushuvaia, Beagle Chan- 

 nel, Maj. 1882. 



Obs. Sub iovc pluvio fungus totus subhygrophanus evadit. 

 In scncctutc flaccescens ac vere foetidus. Sporac ellip- 

 tico-obovatae, superne obtusae, infcrue acutatae(lU 

 X 5 [/), laeves, hyalinae. 



10. Agaricus [mycena) cilotus Speg. (n. sp.) 



Diag. Parvulus, fulvus, puberulus, sparsus; pilcus priino 

 subhemisj)hacricus (2-6"'diam.), margiuc subincurvulus, 

 dcnsiuscule pilosus, deiu subcampanulato-expausus, 

 subumbonatulus, dense pubcrulus, margine acutiu- 

 sculus, rcctus, integcr, fulvo-melleus, centro intensius 

 coloratus; lamellac j)aucae distantes, postice adnato- 



