440 



D. cercophora, (Ell.) 



t^alsa cercophora, EU. Bull. Torr. Bot. Club, IX, p. gg. 

 Diaporthe cercophora, Sacc. Syll. 6097. 

 fixsicc. Ell. N. A. F. 1187. 



Perithecia few, 4^6, rather large, imbedded in a subcarbonaceous 

 stroma, which is limited by a black line penetrating the wood. Ostiola 

 stout, obtuse, with a large opening, united in a subcorneal disk, which 

 pierces the epidermis and rises slightly above it. Asci clavate-cj4in- 

 drical, 75-85x10-12 /z. Sporidia biseriate, oblong-elliptical, con- 

 stricted in the middle and uniseptate, appendiculate at each end, 10- 

 1 5 X 2|-4 /z, hyaline. 



On dead limbs of Ilex opaca, Newfield, N. J. 



The appendages, which are finally absorbed, are as long as or 

 longer than the sporidium itself, and the upper one generally recurved 

 at the end. 



D. talfeola, (Ft.) 



Spharia taleola, Fr. Syst. Mycol. II, p. 391. 

 Valsa taleola, Fr. Summa Veg. Sc. p. 41J, 

 AgIaospo7-a taleola, Tul. Sel. Carp. II, p. 16S. 

 Diaporthe taleola, Sacc. Syll. 2426. 

 Exsicc. Desm. PI. Crypt. Ed. I, 2054, Ed. II, 1754.— Rab. F. E. 821.— Cke. E. Bfit. Ser. I, 

 252, Ser. II, 231. 



Stroma cortical, with a black, circumscribing line which does not 

 penetrate the wood, only slightly raising the bark, depressed-pulvinate, 

 2-4 mm. across, closely covered by the epidermis. Perithecia not 

 numerous (4-10), buried in the inner bark, with their ostiola converg- 

 ing and coiumonly erumpent in a small, light-colored disk, but not 

 projecting, and often scarcely visible. Asci cylindi'ical, 120-140 x 

 10-12 fi, (paraphysate)? Sporidia uniseriate, elliptical, uniseptate, 

 constricted, with a setaceous appendage about as long as the sporidium 

 at each end, and often with 2-3 similar ones at the septum, 15-22x 

 8-9 n (20-25 X 7-10 fi, Winter). 



On dead oak limbs, Pennsylvania (Schw.), Iowa (Holway). Allied 

 to Melanconis. 



D. oxyspora, (Pk.) 



yalsa oxyspora, Pk. 28th Rep. p. 73, pl. 2, figs. 26^29. 

 Diaporthe oxyspora, Sacc. Syll. 2427, 



Stromata scattered, subconical, cortical, enclosed in a thin, black 

 sheet which penetrates to the wood, surrounded above by the tri- 

 angularly or stellately ruptured epidermis. Perithecia sunk to. the 

 wood. Ostiola few and short, moderately exserted. Asci clavate, 

 about 40 X 8 // (p. sp.). Sporidia biseriatCf oblong-fusoid, uniseptate 



