Agarkus.] fungi. 71 



specific character; and, Fries never having seen the plant, I have 

 followed Persoon. The description above given \\\\\ at least enable 

 any one to recognise the fungus I have in view. I have not admitted 

 A. orcellas into the British list, though referred to by Purton for A. 

 suhcanthareUuSi v. 3. n. 1431 ; his whole description showing that he 

 refers to some state of CanihareUus aurantiacus, of which the dicho- 

 tomous gills and blackish stem are quite characteristic. 



184. A. conchcihiSy Bull, {shell-like Agaric); pilous tough 

 irregular flesh-colour inclining to cinnamon, gills quite entire 

 pale, as well as the short irregular stem whose base is pubescent. 

 Ball. t. 298. With. v. 4. ;a 20,3. Purt. v. 2. c^J- 3. n. 972. 

 Fr. Syst.Myc.v. I. p. 183. 



On trunks of dead trees. July — Sept. Edgbaston. Withering.-^ 

 *' Pilcus flaccid, even ; gills not anastomosing at the base, rather thick 

 not close. Stem not 1 inch high, sometimes obsolete." Fr. I. c. 



185. A. glandiilosus, Bull, (glandular-gilled Agaric) ; csespi- 

 tose, pilous compact sublateral dilute bay, gills glandulaiMvhite, 

 stem smooth. Bidl. t. 426. Ptrs. Sijn. p. 476. With. v. 4. 

 ;;. 264. Pdh. Fl. Cant. Ed. 3. ;j. 542. 



Trunks of trees. Sept.— Oct. TJare. Babraham. Rdhan. — '' Pileus 

 18 inches or more across ; thick, fleshy ; Jlcsh white, rather soft, 

 compact, sometimes lobed, even. Gills broad, anastomosing at the 

 base." liil/i. Fr. I. c. The glands are described as velvety ; 1 strongly 

 suspect that this circumstance is not however by itself conclusive as to the 

 propriety of considering the present a distinct species ; similar downy 

 nodules often occurring on other Agarics ; I have seen them here and 

 there in A. oslreatas, and suspect that they arise from the sporules 

 being drawn together into little heaps in consequence of small globules 

 of water collecting on the gills, and when the moisture is dried up, 

 afl'ording a nidus for the development of some small mucedinous 

 parasite, or of delicate downy matter from the parent plant. 



186. A. ostrcdtusj Jacq. (o7/ster Agaric) ; crespitoso, pilous 

 fleshy smooth blaekisli then cinereous at length paler, gills 

 anastomosing behind not glandular white, stem sublateral, 

 Jacq. Aust. t. 288 (fide Fries.) Curt. Lo7id. <. 216. Sou\ t.2A\. 

 Pcrs. Syn, p. 477. With. v. 4. p. 264. Tratt. Essh. Schw. 

 t. O. Pure. V. 2 cS' 3. ?i. 971. Fr. Sf/st. Myc. v. 1. p. 182. 

 Gret\ Fl. Ed. p. 396.—^. dimidiatus, Pull. t. 508.— /i. 

 nigricans^ Trait. Fiing. Aust. t. 20./ 40. 



On trunks of trees, as Apple, Laburnum, &c. Autumn — Spring. 

 Not uncommon. — Imbricated, large. Pilcus subdimidiatc, very thick 

 and fleshy ; Jhsh white, dusky towards the surface, 1 inch deep ; the 

 holder at first fibrillosc or even decidedly s(juamnlosc, margin involute ; 

 as the pilcus cxjiands the white fibrilhe vani>h and the colour changes 

 from dusky to bistre; margin paler and riiiinlose, the whole surface 

 shining and satiny when dry, soft aud ehunniy when moist; towartis the 

 base in age there is a little white down, iidls broad, iicre and there 

 forked, anastomosing at the base, dirty-white, the edge serrated um- 

 ber. — In large specimens there is often a distinct stem, clothed with 

 a dense short white ilown, which runs up between the gills. When 



