244 FU^GI. [Spharia. 



41. S. ferruginea^ Pers. {ferruginous Sphceria) ; bursting 

 forth transversely subrotund unequal black, stroma pulverulent 

 ferruginous, ostiola aggregate round spinulose. Pers. Syn, 

 p. 35. Ohs. Mijc, 1. t. 5. / 1, 2. Moug. ^ Nest. I n. 377. 

 Hook, Fl. Scot. 2. p. 6. Fr. Syst. Myc. v. 2. p. 363. Scler. 

 Suec. ! 9K 305. Piirt. MSS. Stromatosphceria ferruginea, 

 Grev. Fl. Ed. p. 358. 



On hazel branches, &c. Common " Ostiola even, very variable, 



sometimes almost obsolete, sometimes very long, slender, flexuous equal. 

 Obsoletely circumscribed." Fr. I. c. 



42. *S'. ceratosperma, Tode, {hortied Sphceria) ; erunipent 

 subrotund convex black, within dirty-white at length brownish, 

 ostiola spinulose close straight scabrous. Tod. Fung. Meek. 



f. 131. Pers. Syn. p. 23. Moug. Sf Nest. ! n. 567. 



On branches of Roses, Oak, &:c. Appin, Captain CarmicJiael. 



43. S. Ilystrix, Tode, (Jiedge-hog Sphcsria) ; bursting forth 

 transversely depressed oval rather plain black, brownish within, 

 rostella distinct somewhat incrassated above. Tod, Fung, 

 3Ieck. f. 127. Fr. Syst. Myc. v. 2. p, 364. Moug. ^- Nest, 

 exs. n. 959, not 569. 



On sycamore branches. Appin, Captain Carmichael ^he pustule 



is brown within but covered with a distinct black stroma, which will at 

 once, when accurately observed, distinguish it from S. stilbostoma, var. 

 conferta. 



44. >S'. Strumella, Fr. {hlack currcmt-hranch SphcBrici) ; burst- 

 ing forth transversely depressed elliptic, nearly plain black, 

 stroma cortical, ostiola cylindrical even. Fr. Syst. Myc, v. 2. 

 p. 365. Scler. Suec. ! n. 115. Moug. 4" Nest. 7i. 9, 60. Ce- 

 nangium ribis. Purt. 3ISS. 



On dry currant branches. Common. — Sporidia bipartite, constricted 

 in the centre, in dry specimens. Sometimes it bursts through the bark 

 ; longitudinally. See Fr. El. 2. p. 74. 



Div. 8. CoNCRESCENTES. (^Nomed from tlic crowdcd suhsimph 

 perithccia.) Stroma effused, indeterminate, innate not erunipent^ 

 connate, ivithout any circumscribiiig line, Perithecia inore or less 

 emergent, 



45. S. spinosa, Pers. (spinous Sphceria) ; very widely effused 

 emergent jet black, perithecia at length connate, ostiola spinous 

 thick four-sided sulcate. Pers. Syn. p. 34. t. 2. /. 9—12. 

 Moug. 4' Nest. ! 7i. 376. Fr. Syst. Myc. v, 2. p. 368. Scler, 

 Suec. ! 71. 11. Fl. Dan. t, 2038./. 2. 



On wood. "Botanic Garden. 0:^{ovd, 3Ir. Baxter ^ Purt. MSS. 

 — " Spreading over the wood for a great space and staining it black ; 

 when young immersed, scabrous, villous, rugose ; perithecia almost free 

 covered wkh a thin crust, when old subemergent remarkable for its 

 large prominent pyramidal or irregular always rugged ostiola. Perithecia 

 ovato-globose, rather large, joined by a thin crust." Fr. I c. 



