822 SPH^RIACEI. 



Variable as to fhe size of the patches, their manner of bursting through, 

 the colour of the stroma, and length of the ostiola ; sometimes the latter are 

 crowdi'd and pierce the epidermis in a fascicle, occasionally irregularly scat- 

 tered, the patches somewhat confluent, and the whole surface of the branch 

 pierced by a single ostiolum, which, though varying in length, are always curi- 

 ously sulcate. 



2462. Valsa syngenesia. Fr. •' Elder Yalsella." 



Conical, free, adnate at the base ; stroma cinereous-black ; 

 ostiola exserted; sporidia cylindrical, curved, minute, hyaline. — 

 Fi\ Summ. V.S.p. Ul. B. 4' Br. Ann. N.H'.no. 847 (not Currey). 

 Sph. syngenesia, Fr. Obs. ii. t. 7,/. 1. Cooke exs. no. 238. 



On elder. \^0n Buhus, Mid. Carolina.] 



Two species similar in habit, but differing in fruit, appear to have been 

 confounded by Fries in his observations ; Kev. M. J. Berkeley thinks this to 

 be the genuine species, whilst Messrs. Currey, Nitschke, Fuckel, &c., refer 

 it to the species included here under Diatrypefranc/ulce. 



(j, IncuscB. 



2463. Valsa nivea. Fr. •' Snowy disc Valsella." 



Spermogonia. — Cells set in a conceptaculum ; disc erumpent, 

 at length black ; tendrils yellow ; spermatia minute. — Cytispora 

 chrysosperma,Fr. S.M. ii. p. bi2. Eng. Fl. v.;?. 282. Moug. exs. 

 881. 



AscoPHORE. — Conic ; stroma white, contained in a close dimi- 

 diate conceptaculum, which easily separates from the bark ; disc 

 truncate, mealy, almost snow-white ; ostiola slightly prominent, 

 globose, even ; asci lanceolate, sessile ; sporidia cylindrical, 

 curved, simple, hyaline. — Fr. S.V.S. p. 411. Tul. Carp. ii. p. 

 128, t. 22,/. 12-21. De Not. Sfer. Ital. i. t. 36. FcU. exs. no 602. 

 Sphceria nivea., Hoffm. Veg. Cr. i. p. 26, t. 6,/. 3. Moug. exs. no. 

 278. Eng. FL v. p. 248. Fr. S.M. ii.p. 386. Fries, exs. no. 76. 

 Funck. exs. no. 281. S. marginata, Sow. t. 372, f. 7. 



var. polyspora. Sporidia numerous. — Ciirr. Linn. Trans. 

 xxii./. 126. Valsa poly spora, Nke. Pyr. Germ. p. 



On branches of poj^lar, hawthorn, &c. [Mid. Carolina.] 

 Sporidia ('0002 -"0003 in.) •005--007m.m. long. 



2464. Valsa leucostoma. Fr. " White-mouthed Valsella," 



Spermogonia. — Cytispora nivea, Fckl. En. F.N. Cytispora 

 ocellata, Fckl. exs. no. 1968. 



