467 



"Erumpent, subrotund, convex, black. Perithecia oblong. Osti- 

 ola elongated, cylindrical, smooth, straight. Asci clavate, sessile. 

 Sporidia straight or slightly curved, ends obtuse, hyaline, 8-9 x 1 \ ft. 

 Pustules small, containing only 5-6 perithecia.'' 



On twigs of Eucalyptus, California. 



The specc. in N. A. F. show mostly spermogonia, convex, black. 

 1^-2 mm. diam., with a central, perforated papilla. Cells numerous, 

 radiate. Spermatia cylindrical, hyaline, curved, 5x1 /i. 



V. conspurcata, (Schw.) 



Sphceria conspurcata, Schw. Syn. N. Am. 1336. 



Valsa conspurcata, Stevenson Additions to Cooke's Valsei, No. no. 



Conceptacle rather large, black, but covered, as well as the effused 

 black crust around the base, with a dirty brownish, pulverulent mass. 

 Several conceptacles are often confluent beneath the epidermis, which 

 is stellately ruptured with revolute laciniae. Perithecia rather large, 

 subcircinate, compressed in the conceptacle, surrounded by a cinereous- 

 brown stroma, with a horn-colored nucleus, necks elongated-connate. 

 Ostiola 6-12, short-cylindrical, rising together through the whitish or 

 cinereous disk, rounded and nearly smooth at the tips. Sporidia 66 

 xli-2/a. 



On oak firewood, Bethlehem, Pa. (Schw.) 



The description of the ostiola and sporidia was made from speci- 

 men in Herb. Schw. 



V. modesta, (Schw.) 



Sphceria modesta, Schw. Syn. N. Am. 1337 

 Valsa modesta, Stevenson 1. c. 



Conceptacle nearly free in the inner bark, making a round, sub- 

 elevated tubercle, at length erumpent through the revolute-fissured 

 epidermis. Disk dark brown. Ostiola black, subprominent, rather 

 long, densely crowded, cylindric-conical, at length deciduous. Stroma 

 in which the perithecia lie, cinereous. Diameter of the conceptacle 

 2-3 lines. 



On young branches of elm, Bethlehem, Pa. (Schw.) 

 Sporidia (sec. Stevenson 1. c.) allantoid, hyaline. 7 J x3J a. 



V. Toxici, (Schw.) 



Sphceria Toxici, Schw. Syn. N. Am. 1330. 



Conceptacles rather large, suborbicular, closed below, black, ru- 

 gose, at first covered, finally exposed, often longitudinally confluent. 

 Ostiola collected in the center, round, obtuse, sometimes apparently 

 stellate. Perithecia oblong, crowded, narrowed into a neck, brown. 



