207 



hysteriiforin, striate, opake, 150-180 fx long, 80 fi wide, perforated 

 above. Asci C3dindrical, 8-spored. Sporidia elliptical, uniseptate, 

 brown, scarcely constricted, each cell uninucleate, 12-14x8 //. 

 On bleached wood of Sequoia, California. 



TREMATOSPHilRIA, Pckl. 



Symb. p. i6i, emend. Sacc. Syll. II, p. 115. 



Perithecia simple, carbonaceous, hard, superficial or subsuper- 

 ficial, at length broadly perforated above, conical or globose, generally 

 large. Asci 8-spored. Sporidia oblong or fusoid, 3- or more-septate. 



The genus as defined in Symb. Myc. included species with the 

 sporidia 1-3-septate (Amphisphceria, in part). 



Tr. pertiisa, (Pers.) (Plate 22) 



Sphceria pcvtusa^ Pers. Syn. p. 83. 

 Trematosphixria periusa, Fckl. Symb. p. 162. 

 Exsicc. Fckl. F. Rh. 931. 



Perithecia scattered, mostly only slightly sunk in the matrix or 

 simply adnate, spherical-conoid, black, hard, Subrugose, rather less 

 than I mm. diam. Ostiolum mostly conical and soon deciduous, leav- 

 ing the perithecium perforated. Asci elongated, 110-140x15-20 //. 

 with filiform paraphyses. Sporidia biseriate or obliquely uniseriate, 

 elongated-biconical, unequally uniseptate, finally 3-septate and more 

 or less constricted at the septa, brown, 24-32 x 8-10 fi. 



Schweinitz (Syn. N. Am. p. 214) says this species is common in 

 Carolina and Pennsylvania. It is also mentioned by Peck, in 22d 

 Rep., as found in New York, but we have never seen any American 

 specimens which we could refer to this species. 



Tr. nuclearia, (De Not.) 



Sphnria nuclearia, De Not. Micr. Ital. Dec. g. p. 462, fig. IV. 

 Hypoxylon nucitena, B. & C. Grev. IV, p. 52. 

 Spharia caryophaga, Schw. Syn. N. Am. No. 1594. 

 Tremaiosphixria nuclearia, Sacc. Syll. 3308. 

 Spharia Curtisii, Berk, in Curtis Cat. p. 145. 



Perithecia superficial, with their bases slightly sunk in the matrix, 

 and connected by a thin, black, carbonaceous crust, hemispherical, 

 rough, black, with a papilliform ostiolum. Asci clavate-cylindrical, 

 60-70 X 7-8 fj. (p. sp.), with filiform paraphyses. Sporidia irregularly 

 biseriate, oblong, slightly curved, narrowed and rounded at the ends, 

 12-16x4-5 n, biseptate, end cells subhyaline, middle cell with a 

 broad, black band across the center. 



On decaying hickory nuts, Pennsylvania (Everhart). 



