70 



prominent. Asci clnvate, 8-sporcd. Sporidia ovoid, subobtuse, straight 

 snl (hyaline, 10x6 //. The spermogonial stage is Libertella rubra, 

 Hon. Sj.rrmatia filiform, uncinate, 30 /j. long. 



On living leaves of several species of Pi-nnus (P. domestica, P. 

 spinosa). Credited to N. America by Sacc. in Syll. 



P.(?) Bumelise, (Schw.) 



Dothidea Bumelicz, Schw. Syn. N. Am. No. 1884. 

 Polystigma Bumeliee, Sacc. Syll. 4589, Cke. Syn. 177. 



Stroma orbicular, large, f cm. and over, ovate or of somewhat 

 irregular shape, conspicuous on both sides of the leaf; on the upper 

 side brick-red, and somewhat shining as if varnished, paler and with- 

 out any varnished appearance below. Perithecia (cells) few, scattered, 

 minutely pseudo-ostiolate and subprominent. 



Epiphyllous, on living leaves of Bumclia oblongifolia; found in 

 the Arkansas region by Nuttall. 



BYSSONECTRIA, Karsten. 



Symb. Mycol. Fenn. VII, p. 6 (1879). 



Stroma more or less byssoid. Perithecia subsuperficial, crowded. 

 Sporidia (in the American species) hyaline. Asci paraphysate. 



A. Sporidia continuous. 

 B. fimeti, (Cke.) 



Nectria fi meti, Cke. Grev. XI, p. 108. 

 Byssonectria fimeti, Sacc. Syll. 4584, Cke. Syn. 349, 

 Exsicc. Rav. F. Am. 646. 



Perithecia gregarious or scattered, golden-yellow, subglobose, 

 seated on a byssoid, golden-yellow strorna, bare and glabrous abo,ve 7 

 tomentose below, finally collapsing. Asci cylindrical, 160-190 (p. sp. 

 11 2-115) x 10-12 /jt. Sporidia uniseriate, elliptical, continuous, hya- 

 line, 15x8 p.. 



On cow dung, Aiken, S. C. (Ravenel). 



B. Sporidia uniseptate. 



B. chrysocoma, Cke. & Hark. Grev. XII, p. 101. 



Stroina fibrose-byssoid, golden-yellow, effused. Perithecia gre- 

 garious, minute (100-150 /^), obovate, thin, dark yellow, semiimniersed 

 in the stroma, Asci clavate, 8-spored. Sporidia biseriate, narrowly 

 elliptical, uniseptate, hyaline, 10x2-2| t a. 



On wood of Eucalyptus, California (Harkness). 



B. rosella, Cke. & Hark. Grev. 1. c. 



Delicate, effused, with a rose-colored tint. Hyphas creeping, inter- 

 woven, with the minute, obscure perithecia scattered on it. Conidia 



