Obs. Sporae obovatae, suj)erne obtusc rotundatae, infer- 

 ne acutatae (10 ;;. x 5 [>.), hyalinae, laeves. 



4. Agaricus (i?'ic/ioZo?7ia)MAGELLANicus Speg. — Fung. pat. 

 n. 2. 

 Ilab. In lierbosis in peninsula L^s/iwraia Maj. 1882. 



5 Agaricls {[ficlLoloma) pseudorussula Speg. (n. sp.) 

 Diacj. Solitarius; pileus applanatus, centro vix depressu- 

 lus, glaberrimus, lacvissimus, quandoquc subcipcra- 

 scens quandoque rubescens, saepius tamen violascens, 

 hinc indi niaculato-pallescens, latiusculus (3^5-4" diam.), 

 crassiuscule carnosus, rigido-fragilis, cute facile sece- 

 dente tectus, margine integer, subincurvulus ; lamellae 

 albae V. subceraceo-pallescentes, crassiusculae, fragiles, 

 monomacriae antice acutae, postice acutato-adnatae, 

 centro latiores (1,5" long. X 0,5" lat.), carne pilei 

 concretae, confertiusculae, acie iutegerrimae, obtusiu- 

 sculae; stipes tereti-obclavatus, basi truncato-rotuu- 

 datus, fragilis, glaberrimus, laevissimus, albus quan- 

 doque centrum versus plus minusve roseus v. violascens, 

 farctus. 



Caro pilei rigidula alba, iila stipitis flocculoso- 

 spongiosa, candidissima. 

 Ilab. In pratis nec non in sylvis in Staten Islancl et in 



Voces bay, Mart. et. Maj. 1882. 

 Obs. Stipes basi vix radicatus ; odor nullus v. vix farinae 

 recentis ; sapor parum manifestus subdulcis. 



6. Agaricus (clitocybe) dealbatus Sow. — Fr., Hym. eur]). 

 j). 88, n. 2G0. 

 Ilab. In pratis humosis inter Port Cooh et Port Van- 

 couver in Staten island, Mart. 1882. 



Obs. Specimina a typo vix rccedentia stipite nonnihil 

 breviore ac crassiore. 



