70 



prominent. Asci clavate, 8-spored. Sporidia ovoid, subobtuse, straight) 

 subhyaline, 10x6 fi. The spermogonial stage is Libertella rubra, 

 Bon. Spermatia filiform, uncinate, 30 ;i long. 



On living leaves of several species of Primus (P. domestica, P. 

 spinosa). Credited to N. America bj- Sacc. in Syll. 



P.(?) Bunielije, (Schw.) 



Doihidea BuinelieE, Schw. Syn. N. Am. No. 1S84. 

 Polysiigma Bumdis^ Sacc. Syll. 45B9, Cke. Syn. 177. 



Stroma orbicular, large, | 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 Bunielia ohlongifolia; found in 

 the Arkansas region by Nuttall. 



BYSSONECTRIA, Karsten. 



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



Stroma more or less byssoid. Perithecia subsuperficial, crowded. 

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



A. Sporidia continuous. 

 B. flmeti, (Cke.) 



Nectria fimeti, Cke. Grev. XI, p. 108. 

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

 Kxsicc. Kav. F. Am. 646. 



Perithecia gregarious or scattered, golden-yellow, subglobose, 

 seated on a byssoid, golden-yellow stroma, bare and glabrous above, 

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

 112-115) X 10-12 p.. Sporidia uniseriate, elliptical, continuous, hya- 

 line, 15x8 p. 



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



B. Sporidia unisejJtate. 



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



Stroma fibrose-byssoid, golden-yellow, eifused. Perithecia gre- 

 garious, minute (100-150 p), obovate, thin, dark yellow, semiimmersed 

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

 elliptical, uniseptate, hyaline, 10x2-2| fi. 



On wood of Eucalyptus, California (Harkness). 



B. rosMla, Cke. «& Hark. Grev. 1. c. 



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

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



