240 FUNGI. [Sphceria. 



depressed at the apex. Fr, Syst. Myc, v. 2. p. 342. Sckr, 

 Sued «. 112. 



On hard oakwood. Rockingham Forest, Norths. Rev. M.J. Berke- 

 /gy. — \ very puzzling species in conseqaence of the asperities of 'he 

 surface at first sight closely resembling the papillae of numerous m-nute 

 aggregate pcrithecia ; these at length wear off and expose the true 

 perithecia with their depressed apices. 



** Hypopheuice. Perithecia vertical^ immersed^ covered with 

 the stroma and piercbig it by an attenuated neck. 



Div. 5. Glebos^e. Slightly effused^ but not indeterminate, 

 distinct from the matrix. Perithecia large immersed. 



27. S. detista, HofFm. (^scorched Sphceria) ; effused thick 

 undulated rugose, when young pulverulent wliitish cinereous 

 in the centre, at length rigid, perithecia ovate furnished with a 

 short neck. Hoffm. Crypt. I. t. I. f. 2. Fr. Syst. Myc. v. 2. 

 p. 345. Sckr. Suec. ! n. 261. Moug. ^ Nest. / w. 276. Kl. ! 

 Fung. Germ. exs. n. 36. Sp. maxima^ Bolt. t. 181. Sow. 

 t. 338. With. V. 4. p. 360. Hypoxylon deiislum, Grev. Sc. 

 Crypt. Fl. t. 324. /. 2. StromatosjjhcEria deusta, Grev, Fl. Ed, 

 p. 356. 



On rotten trunks of trees. Spring— Autumn. At first fleshy and 

 pulverulent, at length naked very brittle, 2 — 3 inches broad. Sjoridia 

 fusiform, biseptate. 1 have not referred to Purton, as authentic speci- 

 mens are clearly S. nudtiforrAis. It is scarcely possible, however, thr t 

 he should not have been acquainted with the true plant. I have never 

 seen the perithecia so small as in Dr. Greville's figure. 



28. *S'. nummiddria, Bull, (pomfret-cahe Sphceria, Sow.) ,• 

 determinate quite plain, externally and internally black, peri- 

 thecia immersed ovate, ostiola globose slightly prominent. 

 Moug. 4' Nest. ! n. 374. Fr. Syst. 31fjc. v. 2. p. 348. Hy- 

 poxxjlon nunimularium, Bull. t. 468. /. 4. S. depressa, Sow, 

 Herb. 



On wood and bark Sowerby, who confounded it with S. disci- 



formis. " Hard, orbicular, elliptic or longitudinally effused from the 

 confluence of one or more individuals | — 2 inches broad, 1 line thick, 

 separable from the matrix, even, very slightly papillated under a lens ; 

 ostiola distant, Perithecia large immersed." Fr. I. c. S. diffusa. Sow., 

 is S. serpens. This species has been gathered at Juan Fernandez 

 by Bertero, of which specimens are in Dr. Hooker's Herbarium. 



Div. 6. LiGNOs^. Determijiate, connate ivith the matrix; 

 base circumscribed ivith a black line arising from the outer coat 

 of the stroina. Perithecia sunh down to the bottom of the stroma. 

 Bursting through either the bark or cuticle. 



29. S. bidldta, Ehr. {convex disc-like Sphceria) ; erumpent 

 convexo-plain oval or reniform black, white within papillated 

 with the ostiola. Hoffm. Veg, Crypt, t, 2./. 1. Pers, Ic. Pict. 



