SPH^EIACEI. 



821 



Gen. 351. 



VAIcSA, Fr. 



Peritliecia carbonaceous, perfect, 

 circinating, elongated into converg- 

 ing necks ; ostiolaerumpent, joined 

 together, or ending in a common 

 disc. — Fr.SM. Berk. Outl.p. 389. 



{Fig. 388.) 



Fig. 388. 

 Series 1. Valsella. Sporidia simple, hyaline. 



a. Circumscriptce. 



2460. 



Valsa prunastri. Fr. " Sloe Valsella." 



Spermogonia. — Cells set in a depressed conceptaciilnm ; disc 

 erumpent, dirty brown; tendrils reddish ; spermatia cylindrical, 

 minute. — Cytisporaruhescens^ Fr. S.M.ii. p. 542. Fdd. exs. no. 

 627. Eng. Fl.Y.p.28l. 



AscopHORE. — Lentiform, stroma formed of the bark ; ostiola 

 elongated, crowded, 4-6 angled, sulcate, subdivergent ; sporidia 

 biseriate, almost colourless, minute, curved, — Fr. S.V.S.p. 411. 

 Fckl. exs. no. 596. Sphceria prunastri^ Pers. Syn. p. 37. Jloiig. 

 exs. no. 378. Fr. S.M.ii.p. 380. Fries, exs. no. 226. Eng.Fl. v. 

 p. 246. Curr. Linn. Trans, xxii.j). 275. Berk. exs. no. 29. Cooke 

 exs. no. 237. 



On branches of sloe. [IMid. Carolina.] 



Bursting forth transversely. Sporidia ("OOOS in.) '007 m.m. 



2461. Valsa stellulata. Fr. '< Stellate Valsella." 



Spermogonia. — Spermatia cylindrical, curved. — Cytispora sp. 

 Fckl. Sym. Myc. p. 196. 



AscoPHORE. — Subrotund, immersed; stroma white, or dirty- 

 white, circumscribed ; ostiola short,ovato-globose,radiato-stellate ; 

 asci elliptical; sporidia biseriate, very pale yellowish, simple, 

 slightly curved, rounded at the ends. — Fr. S.V.S.p. 411. Fckl. 

 exs. 710. 697. Sphceria stellulata, Fr. S.3I. ii. p. S81. Fries, exs. 

 no. 442. Fng. Fl. v. p. 246. Curr. Linn. Trans, xxii. t. 47,/. 120. 

 Berk, exs, no. 79. Cooke exs. no. 382. 



On elm branches. [United States.] 



