203 



A. melasperma, (Cke.) 



Psilosphczria melasperma, Cke. Grev. VIII, p. 118. 

 Amphisphczria melasperma, Sacc. Syll. 2745. 



Erumpent, at length exposed. Perithecia globose, black, smooth 

 and somewhat shining. Ostiolum thick and subprominent. Asci 

 cylindrical. Sporidia elliptic-acuminate, dark, nucleate, at length uni- 

 septate and nearly black and opake, so that the septum is hardly visible, 

 35x12/^. 



On naked wood, New York (Gerard). 



A. Oronoensis, (E. & E.) 



Sphczria Oronoensis, E. & H. Journ. Mycol. Ill, p. 117. 



Perithecia scattered, subcarbonaceous, black, roughish, subsuper- 

 ficial, the base only slightly sunk in the wood, small (about one sixth 

 111111.), globose or slightly depressed-globose. Ostiolum papilliform. 

 Asci linear, 75x5// (spore-bearing part about 50 it long), surrounded 

 with abundant paraphyses. Sporidia uniseriate, oblong-elliptical, brown, 

 uniseptate but not constricted, 6-8 x 2J-3 ju, cells equal or the lower 

 one a little narrower. 



On rotten wood, Orono, Maine (Harvey). 



Apparently near Sphceria sardoa, De Not. 



A. botulzespora, (Cke.) 



Sphceria botulcespora, Cke. Texas Fungi, No. 133. 

 Amphisphczria botulispora, Sacc Syll. 2719. 



Perithecia gregarious, semiimmersed, slightly compressed laterally, 

 about \ mm. diam. Ostiolum papilliform, perforated. Asci saccate. 

 Sporidia straight or slightly curved, obtuse at the ends, uniseptate, the 

 upper cell being twice the length of the lower, constricted at the sep- 

 tum, brownish, 70-80 x 12 ti. 



On old rails, Houston, Texas (Ravenel). 



Specimens of this species in our Herb, from Ravenel, are sterile 

 or at most afford only a few hyaline, oblong, 3-nucleate, stylospores 

 7-8 x 2| tt. 



A. phileiira, (C. & P.) 



Sphceria phileura, C. & P. Grev. V, p. 55, pi. 81, fig. 6. 

 Amphisphczria phileur a, Sacc. Syll. 2774, Cke. Syn. 3443. 



Perithecia punctiform, small, scattered, orbicular, depressed, semi- 

 imniersed, black. Ostiolum simple, pierced. Asci clavate. Sporidia 

 biseriate, elliptical, brown, uniseptate and slightly constricted at the 

 septum, 22 x 10 tt. 



On bark of Tilia Americana, New York State (Peck). 



