460 



D. Phaseoloruin, (C. & E.) 



Sphceria Phaseolorum, C. & E. Grev. VI, p. 93. 

 Diaportlie Phaseolorum, Sacc. Syll. 2635, Cke. Syn. 2423. 

 Exsicc. EU. N. A. F. 188. 



Perithecia gregarious, buried, very small. Ostiola spine-like, 

 .slender, projecting for \-\ mm. Asci clavate, 30-35 x 6-7 p. Spo- 

 ridia biseriate, oblong-lanceolate, 4-nucleate, scarcely or only slightly 

 constricted, 10-12 x3 p (16 p. long, Cke.). 



On decaying bean vines left exposed through the winter, New- 

 field, N. J. Mostly around the nodes of the stem, the surface mostly 

 blackened and the stroma limited within by a black line. 



D. Desmodii, (Pk.) 



Sphceria Desmodii, Pk. 26th Rep. p. 87, 

 Sphceria desmodiana, C. & E. Grev. VI, p. 93. 

 Diaporthe Desmodii, Sacc. Syll. 2633, Cke. Syn. 2420. 



Perithecia scattered or seriately placed, minute, black, covered 

 by the epidermis which is pierced by the acute or narrowly conical 

 ostiola. Asci clavate, 35 x 5 p.. Sporidia biseriate, fusiform, colorless, 

 2-4-nucleate, 8-10 x2J p. 



On dead stems of Desmodium, New York and New Jersey. 



In Grev. 1. c. the sporidia are given as 18 p long, but we can 

 make them only 10 p. 



D. racemula, (C. & P.) 



Sphceria racemula, C. & P. 29th Rep. N. Y. State Mus. p. 65. 

 Diaporthe racemula, Sacc. Syll. 2629, Cke. Syn. 2417. 



Perithecia cespitose, rugose, small, flattened, black, at length col- 

 lapsing, separating with the epidermis which is pierced by the elon- 

 gated ostiola. Asci clavate, sessile. Sporidia narrowly lanceolate, 

 colorless, 4-nucleate, 15 p long. 



On dead stems of Epilobium angustifolium, New York. 



VALSA, Fr. 



Summa Veg. Scand. p. 140, emend. Sacc. Syll. I, p. 103. 



Perithecia immersed in the bark, more or less distinctly cirdnat 



and lying in a single layer. Ostiola entire, converging to the centei 



and mostly united in a small, erumpent disk. 



Stroma cortical, without any circumscribing line. Disk inosth 



black. (Euvalsa Nits. Pyr. Germ. p. 126). 



* Microspores,. Sporidia not exceeding 8 p. long. 





