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murino-griseum v. subsericeo-nitens, superne laxe sub- 

 minuteque atomatum, inferne minute denseque papillu- 

 loso-asperulum (papillis saepius albicantibus) ; gleba 

 peridio adnata, olivaceo-tabacina, gossypino-compactiu- 

 scula, e floccis tenuibus (2-4 [j. crass.), laevibus, conco- 

 loribus, subcontinuis composita ; sporae globosae (2,5- 

 .3,5 [j, diam.), grosse 1-guttulatae, episporio minutissime 

 (subimperspicue) granuloso, caudula papiliaeformi vix 

 evoluta donatae, olivaceae. 



Hah. Vulgatissima in collinis freti magellanici Caho Pos- 

 session, Gregory hay , Elisabeth island, Punta 

 Arenas, Aug. 1882. 



Obs. Species habitu fere Lycopei^di cujusdam ; Bovistae 

 asperae L6v. etiam summopere affinis, a qua recedit 

 statura minore, peridio tenuiore, rigidiore, sporis 

 asperulis, colore glebae. An tantum ejusdem varie- 

 tas ?. 



72. BoviSTA PACHYDERMiCA Speg. (n. sp.). 



Diag. Eubovista ; mediocris, globosa v. globoso-depressa 

 (2-4" diam.), ubique laevis, arrhiza ; peridium exterius 

 primo crassiusculum, carnosulum, album, sursum angu- 

 lose diffractum, dein tenuissime membranaceo-pelliculo- 

 sum, sordide albescenti-cinerascens, plus minusve laxe 

 squamuloso-atomatum interiore arcte adnatum evadens; 

 peridium interius subcoriaceum, crassiusculum (0,5-1'" 

 crass.), tenax, subfragile, diu exteriore tectum, superne 

 subostiolatim stellatim-lacerum ac dehiscens, e murino 

 plumbeum frustulatim evanescens; gleba laxissime floc- 

 cosa, gossypina, peridio adnata, obscure olivacea, pul- 

 vere sporifero repleta, floccis olivaceis, continuis, lae- 

 vissimis, tenuibus (2-3 \j. crass.) efformata ; sporae 

 globosae (3 [;, diam.), grosse 1-guttulatae, dense maju- 

 sculeque papilluloso-asperae, obscure olivaceo-fuligi- 

 neae, caudula hyaliua vix evoluta auctae. 



