187 

 Z. quercte, (Cke. & Massee). 



ConisphcEiia [Zigitoella) quercetis, Cke. & Mass. Grev. XVI, p. cji. 



Perithecia scattered or gregarious, semiimmersed, laterally com- 

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

 Asci clavate-cylindrical. Sporidia biseriate, lanceolate, 4-nucleate, at 

 length triseptate, hyaline, 35 x 8 /jl. 



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



Z. exigua, (C. & P.) 



Spharia exigua, C. & P. soth Rep. N . Y. State Mus. p. 65. 

 Zignoella exigua, Sacc. SyU. 3629. 



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

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

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



On decaying wood, New York (Clinton). 

 Z. funicola, Ell. 



SphcEiia funicola,, EU. Bull. Torr. Bot. Club, VIII, p. 90. 

 Zignoella funicola, Sacc. Syll. 3639. 



Perithecia scattered, minute (150-200 //), o\"ate-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 fi. 



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



Too near the next species. 



Z. diaphana, (C. & E.) 



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

 Zignoella diaphana, Sacc. Syll. 3653. 

 Exsicc. EU. N. A. F. 781. 



Perithecia gregarious, mostly on bleached spots, suberumpent, 

 membranaceous, finally collapsing above, subelongated or subhysteiii- 

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

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

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

 15-22 X 6-7 iJi. 



Var. albocincta (Sfhairia albochicta, C. & E. Grev. VII, p. 9), 

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

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

 little larger (20-23 jj. long). 



