70 FUNGI. [Agaricus. 



solid mid firm. Gills unequaljjuiceless^ unchangeahle, actcte behind. 

 Growing on trees or wood, 



* Veil universal ; pileus compact horizontal, 



182. A. dryinus, Pers. (oali Agaric)-; solitary hard, pileus 

 oblique nearly smooth dirty-white with brownish scales, veil 

 fugacious, Pers. Syn. p. 478. 3Iyc. Eur. v, 3. p. 40. Nees, 

 Sjjst. t. 177. (copied from Schoeff.) Fr. Syst. Myc. v. I. p. 181. 

 Fl. Dan. t. 1616.—^. dimidiaiiis. Schceff. t. 233. With, v, 4. 

 2?. 285. 



On trees, Oct. Rare. — On ash. Ditchingham. 3Ir. Woodward. 

 Biggin. Norths, llev. M. J. Berkeley. — Pileus ^ — 3 inches broad, 

 excentric, white, the surface broken into light-brown adpressed scales ; 

 the margin involute, with fragments of the broad woven veil adhering 

 to it ; flesh continued into the stem. Gills white, not very broad, 

 decurrent, forked, crisp. Sporides white. Stem 3 inches high (in my 

 specimen elongated from growing in a hollow ash), attenuated down- 

 wards, firm, almost woody, tomentose but not scaly, l^aste like that 

 of A. campestris. The plant assumes partially a yellowish tint when 

 dry or cut. Fl. Dan. t. 1616, is quoted by Fries under A. ostreatusj 

 but it seems to me to be the true A. dryiims. 



** Veil none. Pileus car nose. Gills decurrent. 



' 183. A. incSnstans, Pers. (i?iconstant Agaric); pileus tough 

 depressed subentire flexuous subrufescent, gills rather branched 

 at the base crisp pale, stem short. Pers. Syn. p. 475. 



3Iyc. Eur. v. 3. ;:>. 45. Fr. Syst. Myc, v. 1. ;j>. 181 A. 



dimidiatus, Bull. t. 517. O. — A. JlabelliformiSy Schceff, t. 43, 

 44. — A. conchatus, var. Purt. v. 3. jl>. 429. 



Trunks of trees ; chiefly beech. Margate, on Elm. Aug. — Oct. 

 Beeston. Notts. On Fir. Rev. M. J. Berkeley. — *' Cjespitose. Pileus 

 4 inches broad, minutely tomentose or sericeo-squamulose when young, 

 and when older minutely mottled ; imbricated, irregular, at first quite 

 round and flat but soon depressed, deeply umbilicate, varying from 

 ochraceous to pale fawn with shades of cinnamon, and not black or 

 blackish from the very first, though occasionally when older there is a 

 slight cinereous tinge, shining like kid leather, wrinkled when old, fleshy, 

 llesh white rather tough but easily splitting ; edge thin subinvolute. Gills 

 very decurrent, white, at length pallid, very unequal, anastomosing at 

 the base and forming subrhomboidal reticulations ; when dry, crisp and 

 rigid. Asci cylindrical ; sjwrules round, white. Stem very short, at 

 first central, at length excentric or quite lateral, many frequently grafted 

 together, tough, almost corky at the base, substance not at all fibrous ; 

 downy below, the rest smooth; or the whole downy; sometimes 

 obsolete. Smell rather disagreeable and pungent when old. Ta€te 

 like that of Pohjporus squamosus. When growing on a horizontal 

 surface the pileus is quite regular and deeply depressed. 



My specimens agree exactly with Bulliard's fi.gure quoted above, 

 which has no fuliginous shade on the stem, nor indeed is there any in 

 those of Schoeffer ; and on the faith of this synonyme I consider them 

 to belong to A. inconstans, notwithstanding this point of difference. 

 Persoon does not, however, admit the dark colour of the stem into his 



