— 10 — 



(2" long. X 3'" crass.) basin versus saepius attenuatus, 

 lenacellus, fibrosulus, laevis v. vix lcnissime longitu- 

 dinaliter striatus (in juvcntutc saepe dense grosseque 

 luteo-papiilosus), tenuiter fistulosus, obscuriuscule ru- 

 escens vix superne pallidior ac sublutescens, basi nodu- 

 losus intense ociiraceus et vix nivceliferus. Caro pilei 

 subexsucca, compacta, alba v. dilute lutescens v. vire- 

 scens ; ilia stipitis tibrosa, fulva v. dilute subocliracea, 

 lamellis arcte adnata. 



Species sacpius dcnse gregaria v. nielius li-o-coespi- 

 tosa, parvuia, pulchella, odore et sapore nullis. Sporae 

 ellipticae, utrinque obtusc rotundalac (6-7 X 3 i;.), 

 laeves, ferrugineae. 



Specimina sparsa duplo majora pileo irregulari saepe 

 etiam inveni, sed nullo modo a praecedenti separanda. 



Ut e descriptione constat, species nonnihil a typo 

 friesiano recedit ; an varietas?. 



17. Agaricus (Naucoria) gregorianus Speg. (n. sp.). 



Diar). Parvulus, solitarius, .'i-5-coespitosus ; pileus hemi- 

 sphaericus (10-15'" diam.), ochraceus v. testaceus v. 

 rubescenti-fuscus, glaberrimus, laevissimus, margine 

 integro ; lamellae utrinque rotundatae, antice obtu- 

 siusculae, postice adnatae, o-macriae, ochraceae, pileo 

 vix pallidiores ; stipes teres, tenuis (2" long. X 2'" 

 crass.}, nou v, vix deorsum attenuatus, glaberrimus, 

 laevissimus, tenacello-librosulus, basi parce mycelifero- 

 radicatus, minute fistulosus, pileo concolor. 



Hab. Ad muscos inter gramina in Gregory bay, Apr. 

 1886. 



Obs. Caro pilei tenuis vix centro evoluta, pauca, pallide 

 fulva, cum stipite hymenioque continua. 



Hujus speciei commixtae varietates (an species?) duo 

 occurrunt: 



1" Pileo pallidiore in scnectute saepius explanato ac re- 



