922 SPH^EIACEI. 



2775. Sphaerella buxi. B.C. "Box-leaf Sphjcrella." 



Pycnidia. — Scattered in quincunxes, greyish-black ; perithe- 

 cia globose, slightly prominent; disc covered, depressed, white, at 

 length erumpent, naked ; stylospores oblong, twice as long as 

 broad. — Sphceropsis Candollii, B. ^ Br. Ann. N.H. no. 423. Berk, 

 exs. no. 180. 



AscoPHORE. — Perithecia light yellow, rather longer than 

 broad, with a small mammillate ostiohim ; sporidia uniseriate, 

 colourless, acuminate, elliptical. — Sphceria buxi^D.C. Fl.Fr. vi. 

 p. 146. Rabh. F.E. no. 940. Rahh. exs. no. 531. Curr. Linn. Trans. 

 xxii.p. 283, <. 49,/. 186. S. atrovirens, var. Buxi, Eng. Fl. Y.p. 

 272. 



On dead box leaves. Milton. 



Sporidia probably at length uniseptate ("0005 in.) "025 m.m. 



2776. Sphserella ostruthii. Fr. *' Angelica Sphgerella." 



Hypophyllous, aggregated ; perithecia globose, small, black, 

 emerging from a determinate grey crust. — Fr. Obs. i. p. 174. 

 Berk. Ann. N.H. no. 102. Berk. exs. 330. Schm. exs. no. 205. As- 

 cospora ostruthii, Fr. S.V.S.A2Q. 



On leaves of Angelica sylvestris. Sept. 



2777. Sphserella birunneola. Fr. " Brown Sph^rella." 



Gregarious ; perithecia globose, very minute, mouthless, black, 

 emerging from a determinate brown, oblong spot, which at length 

 becomes black; sporidia? — Fr. S.M.ii.p. 526. Eng. Fl. Y.p. 

 279. Fries, exs.no. 248. Berk. exs. no. ^^. Ascospora hrunneola., 

 Fr. S.V.S.p. 425. Fckl. exs. no. 467. 



On dead leaves of ConvaUaria majalis. 



The fruit of this species seems to be unknown as well as that of the last- 

 named. 



Gen. 358. VENTURIA, De Not. 



Perithecia fragile, hispid or 

 setulose at the apex ; .ostiolum 

 large ; paraphyses none ; sporidia 

 one or two celled, colourless, or 

 slightly coloured. — De Not. in Att. 

 vi. riun. scienz. j9. 485. Fr. S. V.S. 

 Fig. 398. p, 405. Cooke B.F. 2nd ed.p. 159. 



(Fig. 398.) 



