130 FUNGUS-FLOKA. 



Tympanis fraxini, Fr., Syst. Myc, ii. p. 174; Phil., 

 Brit. Disc, p. 355; Eehm, Erypt.-Flora, Disc, p. 266; Saoc, 

 Syll., Yiii. n. 2408. 



Erumpent in small clusters, sometimes solitary, at first 

 clavate and closed, then expanding and becoming turbinate, 

 disc plane, black, shining, margin sometimes slightly wavy, 

 about 1 mm. high and wide, rather horny; excipulum da,rk 

 brown, parenchymatous, cells minute, indistinct ; asoi cylin- 

 dric-clavate, apex rounded, wall thick, spores innumerable, 

 with a faint yellow tinge in the mass, continuous, about 

 2*5 X 1-5 /J,; paraphyses numerous, longer than the asci, 

 very slender and hyaline below, branched, coloured olive- 

 brown, septate, and thickened at the tip to 6 /x, agglutinated 

 together ; hypotheoium dark brown. 



Peziza fraxini, Schweinitz, Syn. Fung. Carol. Sup-, in Act. 

 Soc. Nat. Lips., i. p. 129. 



On branches of Fraxinus excelsior, and other species of 

 ash. 



Specimen from Schweinitz, in Herb. Berk., Kew, examined. 



The swollen tips of the paraphyses readily break away, 

 and in this condition arc described by Phillips. 



Tympanis alnea, Fries, Syst. Myc, ii. p. 174; Phil. 

 Brit. Disc, p. 355 ; Eehm, Krypt.-Flora, Disc, p. 268 ; Sacc, 

 Syll., viii. n. 2415. 



Erumpent, caespitose in clusters of 3-15 ascophores spring- 

 ing from a common stroma ; at first clavate and closed, then 

 expanding and becoming almost plane, somewhat marginate, 

 narrowed to a very short, stem-like base, blackish-brown, 

 somewhat horny, up to f mm. broad ; hypotheoium and ex- 

 cipulum yellowish brown, formed of interwoven hyphae, 

 cortex pseudo-parenohymatouB, cells small, dark brown ; asci 

 cylindrical, apex rounded, base narrowed into a short slender 

 pedicel, wall thick, spores innumerable, minute, smooth, con- 

 tinuous, cylindrical, straight or slightly curved, hyaline but 

 with a tinge of greenish-yellow in the mass, 2 • 5-3 X 1-1 ' 5 /x ; 

 paraphyses numerous, slender, septate, apex thickened, 

 brownish. 



Peziza alnea, Pers., Syn. Fung., p. 673. 



On alder. 



Spermogonia intermixed with the above, subconical or 



