PSATHYRELLA. 343 



** Stem more or less flexuous, apex mealy. 



Psathyrella caudata. Fr. 



Pileus 1^-2 in. across, membranaceous, conico-campanulate, 

 margin striate, bygrophanous, dry, disc even, pale ochra- 

 ceous; gills adnate, then adnexed, 2 lines or more broad, 

 greyish-black ; stem 35 in. long, 2 lines thick, equal, often 

 wavy, whitish, hollow, attenuated into a rooting base. 



Agaricus (PsatJiyrella) caudatus, Fr., Obs. ii. p. 187 ; Cke., 

 Hdbk., p. 222 ; Cke., Illustr., pi. 637. 



In gardens, &c. 



Very fragile. Stem 3 in. and more in length, about 2 

 lines thick, apex obsoletely pulverulent. Pileus when ex- 

 panded 2 in. across, dry, not rugose, clay-colour, with a 

 tinge of flesh-colour, splitting and almost deliquescent in 

 rainy weather. (Fries.) 



A condition of the present species is described as follows 

 by Berk. & Broome. A small form. Pileus at first sienna- 

 brown, at length whitish, often transversely cracked ; stem 

 at first white, fibrillose ; gills ventricose, adnate. 



Stem fistulose, 3 in. and more long, almost 2 lines thick, 

 attenuated from the thickened rooting-base, very fragile, 

 curved, at length tortuous, surface undulated, apex powdered 

 with white meal, pallid-white. Veil none. Pileus mem- 

 branaceous, very delicate, conical, then campanulate, at 

 length expanded and 2 in. or more broad, glabrous, disc 

 subgibbous, even, the remainder pellucid, striate, not corru- 

 gated, spadiceous ; in moist weather splitting and subdeli- 

 quescent; quite firm in dry weather, clay-colour with a 

 tinge of flesh-colour. Gills adnate, 4 lines broad, distinct, 

 greyish-black, edge similarly coloured. Habit almost that of P. 

 yracilis, but abundantly distinct. Spores black when thrown 

 on white paper, on black paper blackish-brown. (Fries.) 



Psathyrella pronus. Fr. 



Pileus ^ | in. across, membranaceous, hemispherical, obtuse, 

 striate, hygrophanous, opaque and minutely silky-atomate 

 when dry, pale smoky-ochraceous ; gills adnate, rather dis- 

 tant, ventricose, 1 line or more broad, greyish-black ; stem 

 about Ij- in. long, ^ line thick, equal, rather wavy, whitish, 

 semi-pellucid, minutely hollow ; spores elliptical, 10 x 4-5 p.. 



