182 



AGAR1CUS. 



Pleurotus. A. The typical form is regularly cup-shaped or obconico-campanulate, central, 

 never reflexed, and for the most part fuscous-cinereous ; on the under side of 

 fallen trunks, chiefly pine. B. In another form the pilei are at first excentric, 

 then reflexed, imbricated and crisped, of a pale cinereous colour; on dried 

 vertical branches, such as hazel. C. A third form (Pers. Myc. Eur. 3. t. 25. 

 /. 3.) has the pileus irregular, at length dimidiate, bluish-grey; on fallen stalks. 



On fir, hazel, elm, &c. Uncommon. May-Dec. 



Name striatulus. Slightly striate. Fr. Monogr. \. p. 257. Hym. Eur. 

 p. 181. Icon. t. 89. f. 5. Berk. Out. p. 139. C. Hbk. n. 134. Illust. PI. 

 212. b. S. MycoL Scot. n. 228. 



398. A. hypnophilus Berk. Pileus white, sessile, resupinate, 

 flat, somewhat reniform, nearly smooth. Gills simple, of the same 

 colour. 



Exactly the habit of A. variabilis ; but the spores are white, and in conse- 

 quence the gills do not change colour. 



On the larger mosses, and fallen leaves. Appin. 



Joined by Persoon with A. variabilis. Spores 3 x 2-3 mk. B. Name wn/ov, 

 a marsh plant ; <$>C\o<s, loving. Hypnum-loving. Berk. Eng. Fl. v. p. 75. 

 Out. p. 139. C. Hbk. n. 135. Illust. PL 212. c. S. Mycol. Scot. n. 229. Fr. 

 Hym. Eur. p. 181. A. variabilis v. hypnophilus Pers. Myc. Eur. 3. t. 24. /. 

 5 a? 



399. A. chioneus Pers. Snow-white. Pileus very tender, 

 somewhat resupinate, villous. Stem curt, viUous, vanishing. 

 Gills rather broad. 



On wood or dung. Rare. Sept. 



Pileus 4 mm. (2 lin.) broad, extremely delicate and fragile, clothed with 

 white down, fixed by a few downy threads, the margin involute. Gills radiat- 

 ing, distant, with sometimes a single smaller one in the interstices. Allied to 

 A. septicus, and differing in its very thin pileus. M.J.B. Name x<-<* v , snow. 

 Snow-white. Pers. Myc. Eur. 3. t. 26. f. 10, n. Fr. Hym. Eur. p. 181. 

 Berk. Eng. Fl. v. p. 75. Out. p. 139. C. Hbk. n. 136. Illust. PI. 212. d. 



Volvaria. 



SERIES II. HYPORHODII (vir6 (diminutive); f>6feos, rose-col- 

 oured). Spores rosy or rubiginous. [A partial veil has been ob- 

 served only among the Annulariae. The spores in the Volvariae, 

 Plutei, and most of the Clitopili are globose or oblong and even, 

 like those of the Leucospori, but in the other subgenera of the 

 series (also in A. (Pluteus) roseo-albus according to Seynes) they 

 are commonly irregular and angular^ Fr. Hym. Eur. p. 182. 



Subgenus X. VOLVARIA (volva, a wrapper). Fr. Syst. Myc. 

 i. p. 277. Rosy-spored. Universal veil free, persistent, distinct 



