612 



erumpent and distinctly prominent, round or irregularly tuberculifottn, 

 mostly flattish-pulvinate, with an uneven, tubercular-rugose surface 

 which is punctate from the slightly projecting ostiola, black, 1-2 mm. 

 diam., sometimes confluent. Ascigerous cells numerous, subpyriform, 

 100-120 p broad. Asci cylindric-clavate, attenuate-stipitate, 8-spored, 

 70-80x10-11 p. Sporidia biseriate, narrow-clavate, attenuated and 

 rounded at the ends, uniseptate and slightly constricted at the septum- 

 hyaline, 17-20 x4| p. 



On a dead trunk of Daphnis, Bethlehem, Pa. (Schw.). 



D. concaviuscula, E. & E. (in Herb.) 



Stromata gregarious, irregular in shape, mostly oblong or ellip- 

 tical, 1-2 x |-1 mm., often subseriately confluent, erumpent, but hardly 

 rising above the bark, mostly concave above, black. Ascigerous 

 cavities about 100 p. diam., hardly crowded. Ostiola not conspicuous, 

 leaving the surface of the stroma nearly smooth. Asci oblong-clavate, 

 contracted at the base into a very short stipe, paraphysate, 8-spored, 

 55-65x12-15 p. Sporidia biseriate, oblong-fusoid, uniseptate, yel- 

 lowish-hyaline, about 15x4 p.. 



On dead branches of Magnolia glauca, Newfield,. N. J. 



D. Calystegise, Cke. & Hark. Grev. XIV, p. 8. 



Stromata subgregarious, erumpent, elliptical, black (1-2 x| mm.), 

 surrounded by the ruptured epidermis. Ascigerous cells immersed. 

 Asci clavate, 4-8-spored. Sporidia inordinate, elongate-elliptical, uni- 

 septate, not constricted, hyaline, 22 x 7 p. Conidia oval, continuous. 

 5x3//, pale. 



On stems of Galystegia septum, California (Harkness). 



D. Baccharidis, Cke. Grev. XI, p. 108. 



Exsicc. Rav. F. Am. 738. EH. & Evrht. N. A. F. 2d Ser. 1559. 



"Pustules erumpent, black, depressed, ovate or elliptical, cells 

 immersed in the stroma. Asci clavate. Sporidia subelliptical, uni- 

 septate, brown, lower cell much smaller, 20 x 12 pp 



On branches of Baccharis, South Carolina (Ravenel), California 

 (Harkness). 



All the specc. examined were old and without asci, but there 

 were (sporidia)? as above described, differing from those of D. collecta, 

 (Schw.), in the broader upper cell. The ascigerous cavities are 

 numerous, subglobose, 100-110 p diam. 



