158 PROCEEDINGS OF THE ACADEMY OF [1893. 



groups. Sporules oblong-cylindrical, hyaline, continuous, straight 

 or very slightly curved, 10-14 x 3-3^/j'.. There are no distinct spots, 

 but the numerous groups of perithecia give the leaf a mottled appear- 

 ance. 



Phoma subcircinata E. & E. 



On pods of Lima bean, Newfield, N. J. Oct., 1892. 



Perithecia subcuticular, 70-90/j diam., sublenticular, subconfluent 

 pierced above, membranaceous, black, subcircinately arranged in 

 large (1 cm.), round, faintly zonate spots, finally spreading and 

 occupying the entire surface of the pods. Sporules oblong-elliptical, 

 hyaline, 2-nucleate, 5-6x2-2i'/, on simple basidia rather longer 

 than the sporules. 



This differs from Phoma leguminum West., in the subcircinate 

 arrangement of the perithecia and the rather longer, binucleate 

 sporules. 



Phoma caulophylli E. & E. 



On dead stems of Caulophyllum thalictroides, London, Canada. 

 June, 1892. (Dearness, No. 1,864.) 



Perithecia gregarious, elliptical, s--t mm. in the longer diameter, 

 covered by the thin epidermis which is raised and blackened over 

 them and pierced by the minute, papilliform ostiolum. Sporules 

 oblong-fusoid, hyaline, 2-nucleate, 5-12 x21-3/j.. 



Sphaeronema negundinis (E. & E., Ell. & Evrht. North Am. Fungi, 2775.) 



On bark of dead Negtmdo aceroides, Fairmount Park, Phila- 

 delphia, Pa. June, 1890. Coll. Hugo Bilgram, com., W. C. 

 Stevenson, Jr. 



Perithecia thickly gregarious, conic-cylindrical, black, 1-1 h mm. 

 high and about J mm. thick, truncate at the apex and crowned with 

 a flesh-colored globule of ejected sporules, which are hyaline, fusoid, 

 3-4-nucleate, 12 x 3//.. 



S. pruinosum B. & C. has the perithecia acute at the apex and has 

 larger sporules. In one species the perithecia are nearly cylin- 

 drical. 



Asteroma saxifragae E. & E. 



On leaves of Saxifraga bracteosa, St. George Island, Bering Sea. 

 Sept., 1891. J. M. Macoun. 



Epiphyllous. Perithecia globose, 50-80// diam., of coarse cellular 

 structure densely crowded and connected by stromatic matter, form- 

 ing a continuous black crust mixed with brown, creeping hyphre and 



