Uydnum.-] rUNGI. ]59 



like pale, the margin subbyssoid, spines very slender rather 

 distant acute. Pers. Syyi. p. 562. Fr. Syst Myc. v. 1./?. 419. 



On decayed trunks, &c. Devonshire, Miss SimcGe. Appin, Copt. 

 Carmichael. — Forming thin effused patches resembling scattered meal, 

 beset with distant acute spines. Captain Carmichael's specimens appear 

 to be scarcely developed, the spines being obtuse and almost rudiniental. 

 The Scottish specimens, which agree very well with the figure given by 

 Nees, yi '247, seem to prove the correctness of a suspicion apparently 

 entertained by Fries, that II. farina ceum and //. crustosum are but the 

 same species in different states, — A fungus seemingly distinct from this 

 and from every species described by Fries, though differing principally 

 in the more com[)lete development of all its parts, occurred at Clifton, 

 Notts, broadly effused on [)ine wood. I am not, however, sufficiently 

 satisfied as to its characters to propose it as new. The reason for men- 

 tioning it here is to note a very curious change which took place in 

 specimens wrapped up in paper and laid by for some weeks in a damp 

 state. Most of the teeth which were at first simple became split, or 

 compressed and confluent in little fascicles, the apices only being free, 

 so as to present a totally different appearance, while in one specimen 

 they assumed the character of the genus Irpex. 



A form, evidently of this species, with a most beautifully branched 

 byssoid margin, occurred at Beeston, in 1824, spreading several inches, 

 on fallen decaying branches. Subicidum effused, consisting of a very 

 delicate inseparable byssoid membrane, closely applied to the wood and 

 following all its irregularities, the man/i/t most beautifully radiated 

 and barren ; the fertile parts sprinkled with a thin farinaceous stratum, 

 from which spring acute white tcct/i, which are sometimes nearly 

 straight. There is scarcely any difference between this and a specimen, 

 on the smooth bark of Beech, gathered by Capt. Carmichael, (marked 

 by Klotzsch Il.far/inein/i, apparently a totally different species) which 

 I had at first referred to //. niveum, i. fimhriatum, excej^t that the 

 aculei are shorter and rather more scattered. Perhaps Ehrenberg 

 may be right in uniting //. crnstosnm, II. farinaccinn and H. niveum, 

 for Fries himself allows that many intermediate forms occur. 



13. //. Barha Jovis^ Cull, {orange-tipped I/ydmim) ; effused 

 tomentose pallid white, spines round pubescent their tips bearded 

 orange. IJu/l. t. 481./. 2. With. v. 4. p. 290. Sow. t. 328. 



On the under side of wood lying on the ground. — Sometimes a foot 

 or more broad ; white when young, then yellowi^ii-rufous ; mem- 

 branaceous, composed of the finest down, margin byssoid, pure white. 

 Spines simple, almost 1* lines long, their tips somewhat |)cnciled. 

 Fr. I. c. A subterraneous fungus, resembling somewhat in form H. 

 srjuallnujn^ Fr., though much larger in all its j)arts, is represented 

 in Dillenius' edition of Hay's Sf/nojtsis, t. \. f. '). My object in noticing 

 it here is simj)Iy to call the attention of British ^Iycologists to what 

 appears to be a very fine fungus, whether truly or not belonging to the 

 present genus. 



14. Il.fiinhruiliimy Pers. ( frinycd Ilydmnn) ; effused nicm- 

 branaceous somewhat ribbed incariialo-rufous, margin fringed, 

 spines granular at length nuillifid. /V. Si/st. Mi/r. v. I.;^42I. 

 Pers, Myc. Lur. t. G.f. b, G. — Sistotrema Jimbi iatuni^ Pcrs. Syn, 

 p, 533. 



