Psathyrella. 219 



white ; s. fistulose, equal, subglabrous, apex white-mealy, remarkably 

 rooting ; sp. 13 16 x 7 9. 



Differs from P. gracilis in larger sp., white edge to g., and 

 rooting stem. 



[squamifera, Karst. P. campan. obtuse, pellucidly striate to 

 middle, rugulose, livid fuscous, pale tan when dry, with scattered, 

 white fibrillose scales ; g. adnate, entirely grey then fuscescent ; s. equal, 

 silky, apex pruinoso-tiocculose then almost glabrous, pallid, base 

 oblique, strigosely rooting ; sp. 1113x6. 



Differs from P. gracilis in silky s., gills all one colour, &c. 



[impatiens, Fr. P. thin, campan. obtuse, livid yellow, furcato- 

 sulcate ; g. adnate ; s. straight, weak, white ; sp. 12 15 x 68. 



[biformis, Schulz. P. conic, even, glabrous, white then tinged 

 flesh-colour; g. sinuato-adnexed, ventricose; s. filiform, glabrous, 

 even, whitish ; sp. 11 14 x 6. 



hiascens, Fr. P. 23 cm. campan. brownish, fisso-sulcate ; g. 

 adnato-liriear ; s. 3 4 cm. straight, glabrous, white ; sp. 7 x 3'5. 

 (1012 x 710 Sacc.) 



[gracilipes, Pat. P. persistently campan. sulcate up to disc, 

 reddish-brown ; g. nearly free, broad, blackish, subdeliquescent ; -s. 

 slender, tall, rigid, hollow, whitish, ring median, very distinct, fu- 

 gacious ; sp. 8 x 4. 



arata, B. P. 2 3 cm. campan.-conic, rather acute, brown then 

 paler, coarsely sulcate ; g. free ; s. 8 12 cm. white ; sp. - . 



trepida, Fr. P. 2 3 cm. campan. obtuse, fragile, densely and 

 finely striate, dusky; jr. ventricose, crowded; s. 6 7 cm. pellucid, 

 hyaline ; sp. 12 diam. 



hydrophora, Bull. P. 2 3 cm. campan. then exp. and striate, 

 edge revolute, disc rufous ; g. adnate, crowded, narrow ; s. 57 cm. 

 straight from a curved base, white, beaded with drops of water ; sp. 

 1118x78. 



[graveolens, Sacc. Smell strong. P. convex, exp. obtusely umb. 

 blackish fuscous, silky-atomate ; g. rather crowded, broadish, black ; 

 s. slender, cylindrical, glabrous, fuscous ; sp. 5 6 x 2. 



[ampelina, Foex and Viala. P. conical then exp. almost smooth, 

 pale brown, thin, slightly pilose ; g. crowded, narrow, rosy violet then 

 greyish brown ; s. white, shining, springing from a copious creeping 

 mycelium ; sp. 4 5 long. 



* * Stem more or less flexuous, apex 'mealy. 



caudata, Fr. P. 3 5 cm. conico-campan. striate, hygr. dry, disc 

 even, pinkish tan ; g. adnate, very broad ; s. 711 cm. slightly nar- 

 rowed to rooting base, whitish ; sp. 12 15 x 6 9. 



[circellatipes, Ben. Caespitose, hygr. P. conico-campan. pilose 

 then glabrous, rufous-brown then tawny ochre, at last pale ochre ; g. 

 blackish, edge white, denticulate ; s. long, white or pallid, apex 



