SPH/ERIACEI. 385 



6. X. pedunculata, Fr. ; corky, slender, simple, springing 

 from a sclerotioid base ; head ovate or subglobose ; {no. 93.) — 

 Sow. t. 437. 



On soil, mostly attached to dung. Not common. 



7. X. bulbosa, B. and Br. ; corky, simple or forked, brown, 

 then black; stem cylindrical, bulbous at the base and spongy. 

 (Plate 24, fig. 2.)—Pers. Obs. ii. t. 1. ./?>. 1. 



Amongst fir-leaves. Rare. Bath, C. E. B. 



289. THAMNOMYCES, E/irb. 



Stem shrubby or siniplc. Perithecia formed of the same 

 substance as the stem. 



1. T. hippotrichioides, Ehrb.; branched, thread-shaped ; pe- 

 rithecia scattered, papillate : {no. 91.) — Soiv. t. 200. 



On old sacks, matting, etc. Not common. 



290. PORONIA, Fr. 



Between fleshy and corky. Fructifying surface margined, 

 orbicular. Perithecia immersed, vertical. 



1. P. punctata, Fr. ; stipitate, turbinate, externally black- 

 ish ; disc truncate, dotted with the black ostiola. — Grev. t. 

 327 ; Soio. L 54. 



On horse- and cow-dung. Not uncommon. 



291. HYPOXYLON, Bull. 

 Stroma corky or brittle, convex or plane, immarginatc, at 

 first clothed with a floccose veil, then with a black crust, dis- 

 tinct from the matrix. Perithecia vertical or divergent. 



ii. Gluiosa. 

 1. H. ustulatum, /J«//. ; efiuscd, thick, undulated, rugose, 

 pulverulent wlu-n young, whitish, cinereous in the centre, at 



2 c 



