ESCULENT FUNGI OF GREAT BRITAIN. S63 
odour. I have not met with any directions how to dress it. 
De CandoLle observes, that in Italy there are several 
species of the same section (JPleuropus, Pers.) commonly 
eaten, and distinguished by the names of gelone, cardena, 
cerrena and ragagno ; but he cannot speak with precision 
as to the species. 
SowERBY says, this species sometimes attains the prodi- 
gious size of two or even three feet in circumference, and 
that he has seen it constant to the same tree for several 
successive years. 
12. Ag. osfreatus, substipitatus, imbricatus, pileo carnoso 
plano-convexo, cinereo vel fusco, lamellis decurrentibus basi 
anastomosantibus. 
Agaricus ostreatus, Jacg, Ft Austr, t. 288.-— Cwr^. ^ 
Hook. Fl Lond. ed. 1. & 2. t. 116.— PTiiJ^. Bot, Arr. 
ed. 6. v. 4. p. 362. — Pers, Syn, Fung. p. 477. — Fries 
Syst My col v. 1. p. 182. — Grev, Fl, Edin. hied, 
Ag. dimidiatus, Bull Champ, t. 508. 
Ag. nigricans, FL Dan. t. 892. 
Ag. atro-albus. Otto. p. 102. (fide Fries.) 
Crepidopixs ostreatus, Gray^s Nat Arr. v. 1. p. 616. 
Hab. Trunks of trees. Spring and autumn. 
Desc. Plant growing in a csespitose or imbricated man- 
ner. Pileus at first dark-grey, at length brownish, 
sometimes even yellowish, 3-7 inches broad, plano- 
convex, smooth, margin rounded and involute, coria- 
ceous. Lamella numerous, whitish, broad, decurrent 
and anastomosing at the base. Stem very short, or 
none ; wh^n present, mostly lateral, solid ; most gene° 
rally absent in large plants. 
