187 

 Z. quercetis, (Cke. & Massee). 



Conispheeria {Zignoella) quercetis, Cke. & Mass. Grev. XVI, p. 91. 



Perithecia scattered or gregarious, semiimmersed, laterally com- 

 pressed, hysteriiform, black, ostiolum papilliform and finally deciduous. 

 Asci clavdte-cylindrieal. Sporidia biseriate, lanceolate, 4-nucleate, at 

 length triseptate, hyaline, 35 x 8 ft. 



On naked, bleached wood, South Carolina (Curtis, 1915). 



Z. exigua, (C. & P.) 



Sphatria exigua, C. & P. 30th Rep. N. Y. State Mus. p. 65. 

 Zignoella exigua, Sacc. Syll* 3629. 



Perithecia subgregarious, small, 300 jjl diam., globose, sometimes 

 collapsed, smooth, shining, black, papillate. Asci clavate or cylin- 

 drical Sporidia elliptical, binucleate, then 1 -3-septate, hyaline, 15- 

 18x7 fi. 



On decaying wood, New York (Clinton). 



Z. funicola, Ell. 



Sphczriafunicola, EU. Bull. Torr. Bot. Club, VIII, p. 90. 

 Zignoella funicola, Sacc. Syll. 3639. 



Perithecia scattered, minute (150-200 //), ovate-globose, partly 

 covered by the fibers of the cotton, pierced above, but without any 

 prominent ostiolum, rough, black, carbonaceo-membranaceous. Asci 

 oblong-cylindrical, contracted below into a short stipe, 65-75x15- 

 18 fi, with abundant conglutinated paraphyses. Sporidia crowded- 

 biseriate, oblong-elliptical, obtuse, 3-septate, hyaline, 15-20x7-8 /i . 



On old cotton cord on a grape trellis, New Jersey. 



Too near the next species. 



Z. diaphana, (. & E.) 



Sphteria diaphana, C. & E. Grev. V, p. 53. tab. 80 fig. 15. 

 Zignoella diaphana, Sacc. Syll. 3653. 

 Exsicc. EH. N. A. F. 781. 



Perithecia gregarious, mostly on bleached spots, suberumpent 

 membranaceous, finally collapsing above, subelongated or subhysterii- 

 form, \-\ mm. in the longer diam., ostiolum not prominent. Asci sub- 

 sessile, cylindrical, paraphysate, about 75x12 a. Sporidia overlap- 

 ping or biseriate, clavate-oblong or oblong-elliptical, hyaline, 3-septate, 

 15-22x6-7 a. 



Var. albovincta (fcphmria ailbocincta, C. & E. Grev. VII. p. 9), 

 has the perithecia surrounded at base by a narrow zone of bleached 

 wood, but does not differ otherwise, unless the sporidia may average a 

 little larger (20-23 fi long). 



