868 SPH^RIACEI. 



2598. Sphaeria rotula. Coolie. " Wheel-like Sphagria." 



Gregarious or scattered ; perithecia globose, dark-brown, 

 slightly AYOolly or smooth, opaque ; ostiola cylindrical, prominent, 

 radiato-snlcate, black ; sporidia broadly ovate, slightly acumi- 

 nate, dark-brown, simple, opaque. — Cooheexs. no. 268. 



On the ground. Near Shere, Surrey. 



Sca*-tered, or in groups on ground containing minute fragments of decaying 

 wood, in company with a hispid Sphseria. Perithecia small, globose, dark- 

 brown, with a broad, prominent, cylindrical ostiolum, which is black and 

 radiato-sulcate, somewhat after the manner of S. papaverea, but the peri- 

 thecia are not in the least areolate, and the prominent ostiola are fluted 

 down to the peritheciura. The sporidia are longer and three times as broad 

 as those of S. pjapa'cerea> 



2599. Sphaeiia sordaria. Fr. " Rough naked Spheeria." 



Sub-emergent, gregarious, black ; perithecia globose, soft, col- 

 lapsing, rugulose, confluent with the obsolete ostiolum ; sporidia 

 uniseriate, dark-brown, elliptical. — Fr. S.M. ii.p. 458. Fries, exs. 

 no. 270. Eng. Fl. v. p. 265. Curr. Linn. Trans, xxii. t. 57,/. 43. 



On moist pine wood. Appin. 



Oregarious, minute, often disposed in rows. To the naked eye presenting 

 little inore than a black scurfy stain. Sporidia (■0006--0007 in.) •015--0177 m.m. 



2600. Sphaeria pulveracea. Ehr, " Dust-like Sphaeria." 



Pycnidia. — Crowded, black, shining, minute, ovato-globose, 

 even, slightly mamillate ; stylospores ovate, or ovate-oblong, sim- 

 ple, brown. — Sphceria myriocarpa, Fr. S.M. ii. p. 459. Fr. exs. 

 no. 313. Eng.Fl.Y.p. 266. Grev. 1. 152,/. 1. Cookeexs.no. 373. 



AscoPHORE. — Crowded, small, black ; perithecia subovate, ru- 

 gulose, rigid; ostiolum distinct, pierced; sporidia uniseriate, 

 dark-brown, elliptical, subglobose, or subturbinate. — FcTcl. exs. 

 no. 936. Curr. Linn. Trans, xxii. t. 57, f. 42. Pers. Sym. p. 83. 

 Fr. S.M. ii.p. 459. Fries, exs. no. 121. Eng. Fl. Y.p. 265. Movg. 

 exs. 710. 773. S.millegrana, Schweinitz. Rosellinia pulveracea ^ Fckl . 

 Sym. Myc.p. 149. 



On dry wood. [United States.] 



Smaller than S. pulvis pyrius, surface unequal but not tuberculate, easily 

 distinguished by the ostiolum. Perithecia rigid, rather shining, crustaceo- 

 aggregate.-i^ries. Sporidia (•0003-'0004 in.) -OOro-'Oi m.m. 



2601. Sphaeria moroides. Curr. '' Blackberry Spheeria." 



Perithecia rugose, small ; sporidia biseriate, greenish-brown, 

 then brown, subhyaline, elliptical. — Curr. Linn. Trans, xxii. p. 

 318, i. 57,/. 34. 



