306 



with a short, abruptly contracted base. Sporidia biseriate, narrow- 

 elliptical or broad-fusiform, granular, hyaline, 15-25 x 6-8 //. 



With Harknessia hyalina, E. & E. T which is probably its stylos- 

 porous stage. On dry, dead oak leaves (Q. coccinea) still hanging on 

 limbs cut off last season, Newfield, N. J., June, 1885. 



P. phomopsis, (C. & E.) 



Sphceria phomopsis, C. & E- Grev. VII, p. 4r. 

 Pfiysalospora phomopsis, Sacc. Syll. 1704. 



Perithecia gregarious, flattened, covered by the epidermis, mem- 

 branaceous, brown, 100-120 fi diam. Asci oblong or clavate-oblong, 

 sessile, rounded at the apex, 25-30 x 8-10 //, with rudimentary par- 

 aphyses. Sporidia ovate-oblong or subnavicular, hyaline, 10-1 2x3// 

 (12-14 x 6 /i, Cke.) 



On dead stems of Desmodiwm, Newfield, N. J. 



The sporidia even in specc. that have lain in the herbarium for 

 ten or twelve years, are mostly continuous, though a few were unisep- 

 tate. Some perithecia contain only stylospores {Phomd) 10-15 x 

 4-5 /. 



P. erratica, (C. & E.) 



Sphceria erratica, C. & K. Grev. VI, p. 95, tab. 100, fig. 35. 

 Physalospora, erratica Sacc. Syll. 1696, Cke. Syn. 4094. 



Perithecia gregarious, g'lobose-depressed, black, at length erum- 

 pent, often crowded. Asci clavate. Sporidia biseriate, elliptical, 

 continuous, hyaline, granular within, 20-26 x 12-13 //. 



On branches of Rosa, Lonicera and on stems of Solidago, New- 

 field, N. J. 



P. oxystoma, Sacc. & Ell. Mich. II, p. 568. 



Kxsicc. EH. N. A. F. 784. 



Perithecia gregarious and often 2-4 erumpent in a cluster to- 

 gether, but not connate, globose-ovoid, minute, with a white nucleus. 

 Ostiolum acutely papiiliform, exserted. Asci oblong-clavate, sessile, 

 with a thick membrane, 70-80x15-17 fi (90-100 x 17-18 //, Sacc), 

 rounded at the apex and surrounded by jointed paraphyses. Sporidia 

 clavate-oblong, crowded, yellowish-hyaline, continuous, 15-20x5 p. 



On dead culms of Phleum pratense, Newfield, N. J., and on dead 

 culms of Panicum Cwtisii, in Louisiana. 



In the Louisiana specc. the perithecia are erumpent in oblong- 

 hysteriiform tufts about 1 mm. long, 5-8 perithecia together, connected 

 by an imperfectly developed, subpulverulent, black stroma. 



I 



