234 PROCEEDINGS OF THE ACADEMY OF [1890. 



-30 X 8-10 !>.. Perithecia about \ mru. diam., white inside, stroma 

 not limited by any dark circumscribing line. 



Diaporthe crinigera. 



On dead oak limbs, London, Canada, ]\Iarch, 1890. J. Dearness, 

 1347 B. Stroma cortical. Perithecia buried in the substance of 

 the inner bark, subcircinate, 6-20 together, ovate- globose \-\ mm. 

 diam. contracted above into short, slender, convergent necks with the 

 ostiola smooth and rounded or distinctly quadrisulcate and erurap- 

 ent in a small compact fascicle. In well developed specimens the 

 ostiola are cylindrical l-2mni. long but quite as often they project 

 only slightly above the epidermis. There is not a separate circum- 

 scribing line around each cluster of perithecia but one continuous 

 thin black layer extends along just under the surface of the inner 

 bark over the entire space occupied by the fungus. In the early 

 stage of growth and where there are only a few perithecia in a cluster, 

 the surface of the inner bark is smooth and even, but where the 

 perithecia are more numerous and well developed they raise the bark 

 into little flat pustules about 2 mm. diam. Asci 45 x 7-8 p.. (p. sp.) 

 with paraphyses, Sporidia biseriate, oblong-fusoid, 4-nucleate,. 

 slightly constricted in the middle, ends subobtuse, 10-13 x 3-4 //. 

 This was at first referred to Diaporthe woolworthii, Pk. but having 

 compared it with a specimen of that species from Mr. Peck we find 

 it to differ in its larger and more numerous perithecia with long 

 cylindrical ostiola and its broader sporidia ; nor is there any seriate 

 arrangement in the clusters of perithecia or any circumscribing line 

 or layer. Mr. Commons sends the same from Delaware (No. 1266) 

 differing only in the clusters of perithecia being more or less 

 longitudinally confluent. 



Diaporthe comptoniae. 



On Comptonia asplenifolia, Newfield.N. J., June, 1889. Perithe- 

 cia subcircinate, buried in the inner bark, small (i mm.), 10-20 in 

 a group, globose, contracted above into a short neck ending in a 

 short cylindrical, obtuse ostiolum with a round, entire opening, gen- 

 erally not projecting above the surface of the bark and scarcely visible. 

 The ascigerous nucleus is whitish at first, becoming nearly black. 

 The bark is raised into little pustules above the perithecia and these 

 pustules soon become irregularly ruptured above. Asci oblong 35- 

 40 X 7 //. Sporidia biseriate, oblong, subinequilateral, 1-septate 

 and slightly constricted at the septum, 10-12 x 3-3z /j-. yellowish- 



