PJilebia.] FUNGI. 161 



from a stem-like base, clothed with long even pilose scales, so closely 

 pressed that the whole surface appears slightly rugulose. Spines dis- 

 tant, chiefly seated on the produced base which is at length brownish, 

 various in form, generally disposed in rows." Fr. I. c. I have seen this 

 plant only in a dried state, but it appears from an inspection of Klotzsch's 

 specimens and from the above description, that there is a strong analogy 

 between it and Agaricus cocJihatiis. The strongly adpressed scales of 

 the piieus and the gill-like folds lacerated into teeth, call to mind the 

 dentato-rugose piieus and the toothed gills of A. cochleatus. The 

 peculiar character of the genus is very well marked in this species, 

 which consists in the teeth not being free at the base, but seated upon 

 folds, kc, so as to present some particular order of arrangement. 



2. /. Idcteus, Fr. (milk-iuhite Irpcx) ; white, pilei coriaceous 

 reflexed zoneless villous, tcetli close disposed in rows acute 

 rarely divided. Fr. El. 1. j)' ^^^' — Hijdnum lacttimi, Fr. 

 Syst. Myc. V. \. p. 412. 



On trunks and branches of beech, Dr. Johnston. — The specimens ia 

 Dr. Hooker's Herbarium are about 2 inches long, effused, with the 

 margin reflexed all round and the teeth exactly resembling those of 

 many true species of Ilydniun ; but on minute inspection they will be 

 found to be seated upon fine folds and disposed in rows. It is a most 

 elegant fungus. 



12. Radulum. Fr. Radnlum. 



II//mcni/im tuberculated. Tubercles shapeless, resembling 

 papilla} or rude somewhat angular spines, more or less obtuse, 

 distant, distinct or irregularly fasciculate, the inner substance 

 homogeneous with the receptacle. Asci occupying indifferently 

 all parts of the liymenium. — Named from the root-like appear- 

 ance of the processes of the hymenium. 



1. 7?. orbiculdre, Fr. (circular Radulum) ; effused orbicular, 

 margin byssoid yellowish-wliite, tubercles shapeless somewhat 

 elongated and fasciculate. Fr. El. v. 1. p. 149. Grcv. Scot. 

 Cri/jjt. Fl. t. 278. — lli/dnum Raduhi, Fr. Syst. Myc. v. 1. 

 p, 423.—//. spathulatum, Grec. Fl. Ed. p. 406. (7iot of Fr.) 



On the trimks of dead birch-trees. Autunm, winter and spring. 

 Appin. Copt. Cmmicltael Auchindenny woods, near Etlinburgh, 

 Dr. Grcville. — Very variable ; generally originating beneath the epi- 

 dermis ; 2 — 3 inches broad, quite membranaceous or above 2 lines 

 thick, nvirgin byssoid, occasionally showing a ilisposition to l)ecome 

 reflexed ; hymenium consisting of irrcgtdjuMy disposed, o!)liqiie or erect, 

 tooth-like, obtuse, entire or laciniated, often fasciculate tubercles ; the 

 apices sometimes somewhat tomentose. Occasionally they are much 

 scattered and almost resemble spines. 



1:3. PiiLLMiA. Fr. PJilebia. 



ITymruium liomog(MU'ons and concrete with the piieus, smooth, 

 veiU)s<)-rngose ; wrinkles interrupted, disjxtsed irregularly, 

 straight or tlexuous, bearing asri all over — Name, f^.s-Vf-, a 11111, 

 from the veiny ajjpearance of the liyinoniuin. 



