432 



Perithecia 3-12, seated on the Wood, collected in a pallid stroma, 

 and surrounded by a faint black line, so that when the bark is re- 

 moved, they have an ocellate appearance, about mm. diam., the 

 short, obtuse, umbilicate ostiola barely piercing the bark. Asci about 

 40 x 6 a (p. sp.). Sporidia subbiseriate, fusoid, 4-nucleate, becoming 

 faintly uniseptate (faintly 5-septate, Cke.), not constricted, 15-20 x3/i 

 (25 x 4 & Cke.). 



On dead branches of Ilex (glabra)'? Newfield, N. J. 



This must not be confounded with D. binoculata, Var. Ilicis, 

 which has much larger, elliptical, constricted sporidia. , 



D. binoculata, (Ell.) 



Valsa binoculata, Ell. Bull. Torr. Bot. Club, IX, p. m. 

 Diaporthe binoculata, Sacc. Syll. 6093. 

 Exsicc. EH. N. A. F. 879. 



Perithecia 3-6, rather large, deeply imbedded in a depressed - 

 hemispherical stroma formed of the slightly altered substance of the 

 bark and enclosed in a tolerably thick, hard, carbonaceous crust, which 

 penetrates to the wood and shows on a horizontal section as a black, 

 circumscribing line. Ostiola subglobose, with a large, irregular open- 

 ing, slightly erumpent through cracks in the slightly raised epidermis. 

 Asci clavate-cylindrical, 100-150 (mostly 100-112) x 12-20 p, p. sp. 

 75-80 ju, with granular paraphyses. Sporidia uniseriate or sometimes 

 subbiseriate, elliptical, uniseptate and constricted, with a large nucleus 

 in each cell, 20-25 x 12-14 //, but often smaller 15-20 x 10-12 /*, con- 

 stricted at the septum. 



On dead trunks of Magnolia glauca, Newfield, N. J., and on 

 Ilex verticillata, London, Canada (Dearness). 



The ostiola often fail to rise through the epidermis, so that out- 

 wardly there is no trace of the fungus. The ascigerous nucleus is soft 

 and pale, and the perithecia themselves are almost colorless. 



This differs from D. ocularia, C. & E., in its' much longer asci 

 and very different sporidia. 



D. stictostoma, (Ell.) 



Valsa punctostotna, Ell. Am. Nat. March, 1883, p. 316. 

 Diaporthe stictostoma, Sacc. Syll. 6096. 



Stroma cortical, formed of the unaltered substance of the inner 

 bark. Perithecia 8-12, about \ mm. diam., in a single layer, their 

 short-cylindrical beaks joined in a small (f mm.), olivaceous, slightly 

 elevated disk which is closely girt by the epidermis, and pierced 

 around its circumference by the black, obtuse, slightly prominent, 

 rather broadly perforated ostiola. Asci clavate-cylindrical, 55 x 8-9 //. 



