326 PROCEEDINGS OF THE ACADEMY OF [1894. 



Chaetomium pallidum E. & E. 



On au old yeast-culture, made on a piece of carrot, Loudou, 

 Cauada, March, 1893 (J. Dearness, No. 2,245). 



Perithecia superficial, thin membranaceous, pale, ovate, 150-200// 

 diam., with a conic- papilliform ostiolum. Asci not distinctly made 

 out, but judging from the arrangement of the sporadia, obloug-cla- 

 vate 30-35 x 10-12//. Sporidia biconical, brown, becoming nearly 

 opake, 14-18x10-12//, narrowed and obtusely apiculate at the 

 ends. 



Differs from the usual type of Chaetomium in its pallid perithecia 

 sparingly clothed with spreading white hairs, but by exposure and 

 age the color of the perithecia becomes darker. 



Lasiosphaeria hystrix E. & E. 



On decaying limb of Sallx, Ohio (Morgan, No. 1,021). 



Perithecia gregarious, depressed- hemispherical, *-•> mm. diam., 

 clothed all over except the broad, tuberculo- papilliform ostiolum, 

 with straight, spreading, stout, snuff-brown hairs 100-250/jt long and 

 6— T/J! thick at the base. The matrix is also overrun with a subicu- 

 lum of finer, interwoven, branching hairs. Asci clavate-cylindrical, 

 short-stipitate, paraphysate, 8-spored, 120-160 x 20/-. Sporidia 

 lying parallel in the asci, fusoid-cylindrical, hyaline, multinucleate, 

 becoming 7-15-septate, nearly straight, ends obtuse, 45-65 x 8-1 0/y 



Comes nearest L. caesariata C. & P., but that is black and 

 shining and beset with 'scattered, black hairs; it also has smaller 

 5-7 -septate sporidia. 



Rosellinia limoniispora E. & E. 



On dead leaves of Fraxinus, Rockport, Kansas, Aug., 1894 (E. 

 Bartholomew, No. 1,545). 



Perithecia gregarious, superficial, ovate, about I mm. diam., often 

 flattened or depressed above, clothed except the black, mammiform 

 ostiolum, with a thin, pruinose-tomentose coat which soon disappears, 

 leaving the surface minutely granular-roughened. Asci (p. sp.) 

 70-75 X 9/'., with a short stipe, 8-spored, paraphysate. Sporidia 

 obliquely uniseriate, limoniform, (i.e., acutely elliptical), the ends 

 submucronate, 12-15x7—8//, dark-brown. 



The absence of any subiculum, and the smaller differently shaped 

 sporidia separate this from B. medullaris and R. mastoidea. 



