— 442 — 



Obs. Solitarius ; pileus e convexo applanatus plus minusve 

 umbilicatus orbicularis (10-15"' dm.) tenuiter papyra- 

 ceus, ¡n sicco rigidiilus, margine acutissimus incurvulus 

 minute obsoleteque crenulatus, obscure castaneus azonus 

 glaberrimus opacus, laevis v. obsoleta minutissimeque ra- 

 diatim substriatus, contextu tenuissimo (0,8'" crs.) albo 

 fibroso donatus ; liymenium ex albo pallescenti-cinereum 

 non decurrens, margine zona strictissima saepeque defi- 

 ciente alba sterili cinctum, e poris brevissimis (0,2-0,3"' 

 Ig.) intus albis ore minutissimo (loOy- dm.) rotundo plano 

 dissepimentis tenuibus acie integris cinerascentibus com- 

 positum ; sporae non visae ; stipes erectus rectus (20-25"' 

 Ig. X 2'" crs.) laevis v. irregulariter (an in sicco tantum?) 

 laxeque rugulosus, fusco-ater, in juventute nubécula ob- 

 scure ferruginea detersili vestitus, intus albus farctus 

 conipactus rigidus tenax basi abrupte insititius. Species 

 pulcherrima elegantissima P. marasmioidi Brk. peraffinis, 

 aqua pileo azono castaneo recedit; an ejusdem tantum 

 varietas ? 



112. PoLYSTicTus SANGUINEUS (L.) Mcv. — Sacc, 1. c. f. 229. 

 Hab. Ad palos truncosque putrescentes vulgatus prope 



Apiahy, Aut. 1881 (sub n. 1501). 



113. PoLYSTiCTus BiFORMis Klotz. — Sacc, 1. c. f. 240. 



Hab. Ad truncos vetustos in sylvis prope Apiahy, Aut. 1881 

 (sub n. 1572-1616). 



Obs. Pilei quandoque peltati resupinato-eft'usi v. saepius 

 spathulato-fiabellati (40-50'" dm. transv. X 25-30'" dm. 

 ant.-post.) dense constipati imbricati saepius confluentes, 

 tenues coriaceo-stuppei rigidulo-molles, planiusculi, 

 primo sublaeves dein concentrice majusculeque sulcati, 

 albi, adpresse e spongioso tomentosulo-velutini, margine 

 obtuse acutati repanduli; contextus tenuis (1'" crs.) albus 

 stupposus ; hymenium ex albo pallescens v. pallide ligni- 



