455 



pallid, loosened epidermis, which soon disappears around them, so that 

 the bark of the affected shoots appears thickly dotted with little cir- 

 cular openings. Asci clavate-cylindrical, 40-45 x 5-6 p. Sporidia 

 biseriate, fusiform, at first 4-nucleate, becoming 1-3-septate, 11-15 x 

 l|-2 f2. There is a faint, bristle-like appendage at each end of the 

 young sporidinm. 



On dead shoots of Quercus coccinea, Xewfield, N. J. 



The upper part of the dead shoots for a foot or more is entirely 

 occupied by the fungus, which is definitely limited, but not sur- 

 rounded by any black line. 



D. .Esculi, Cke. & Hark. Grev. IX, p. 86. 



Cortical, collected in elongated groups. Perithecia globose- 

 depressed. Asci lanceolate, sessile. Sporidia sublanceolate, straight. 

 4-nucleate, 18 x3| p.. 



On ^sculus Calif ornica, in California (Harkness). 



D. spina, Fckl. Symb. p. 210 (not Schw.) 



Exsicc. Fckl. F. Rh. 2257. Krieger F. Sax. 139. Kze. F. Sel. 136, 357. Rab. F. E. 1715. 

 Rehm Asc. 330. Thum. M. U. 67. 



Perithecia scattered or gregarious, covered, immersed in the un- 

 altered substance of the bark, of medium size (J mm.), globose, black, 

 with a short, conical ostiolum about equal in length to the diameter of 

 the perithecium piercing the epidermis and slightly prominent. Asci 

 oblong-elliptical, 8-spored, sessile, p. sp. 40-50 x5-10 //, 35-40 x 15- 

 16 p. (Sacc.), 38-48 x 5-7 // (Winter). Sporidia overlapping, 2-3- 

 seriate, fusoid, curved, 4-nucleate, uniseptate, hyaline, about 20 x 2| p.. 



On dead limbs of Salix, London, Canada (Dearness). 



Sphceria spina. Schw. is (sec. specc. in Herb. Schw.), Sphcero- 

 (ji'apliium Fraxini, (Pk.). and not an ascigerous fungus. There is 

 (sec. Winter) a small appendage on each end of the Sporidia. 



D. velata, (Pers.) 



velata, Pers. Syn. p. 32. 

 Diaporthe velata, Nitschke Pyr. Germ. p. 287. 



Stroma widely effused, enveloping the limbs and twigs, the limit- 

 ing lines penetrating the wood, enclosing areas of various size and 

 shape, and blackening the inner surface of the bark. Perithecia evenly 

 scattered, buried in the surface of the inner bark, here and there 2-4 

 together, small, subglobose, soon depressed and even lenticular, ab- 

 ruptly contracted into a short neck, with thick, short, cylindrical or 

 subconical ostiola scarcely or only slightly exserted, or under the loos- 



