230 * PROCEEDINGS OF THE ACADEMY OF [1890. 



abundant obscure paraphyses. Sporidia biseriate, ovate-elliptical 

 yellowish-brown, 12-15 x 6-8 !>■. rounded at the ends, 1-septate and 

 constricted. 



Asterina bignoniae. 



On living leaves of Blgnonia capreolata, St. Martinsville, La., 

 Feb., 1889. Langlois, 2225. Hypophyllous,perithecia gregarious or 

 scattered, depressed-globose, 115-125 //.. diam. roughish, black; 

 ostiolum papilliforai. Mycelium very scarce or wanting. Asci ob- 

 ovate, 20 X 15 //. finally elongated -pyriform 30 x 15 p.. Sporidia 

 crowded, oblong, 1-septate, 12x4 //. hyaline, obtuse, slightly con- 

 stricted (becoming brown) ? On account of the subglobose peri- 

 thecia and the absence of any radiate-fibrous structure this might be 

 placed in Dimerosporium. 



Chaetomium pusillum. N. A. F. 2350. 



On basswood bottom of a barrel standing in a cellar at Newfield* 

 N. J., July, 1889. Found also at Manhattan, Kansas, on an old 

 churn in a cellar, March, 1889. (Kellernian 1437.) Perithecia 

 gregarious, black membranaceous, about 150 /-«. diam. and 200 ,a. 

 high, the lower part clothed Avith fine loosely-entangled, pale slate- 

 colored, branching hairs; upper part of the perithecia clothed more 

 sparingly with longer, darker, mostly simple, spreading hairs which 

 are partially transparent and continuous or very faintly septate, 

 about 3 //. thick at base, tapering nearly to a point. Asci narrow- 

 cylindrical, 30 X 32 :>.. (p. sp.), without paraphyses. Sporidia uniseri- 

 ate, elliptical, brown, 3*-4i x 22-3 ,a. The asci soon disappear and 

 the spores are expelled in a cylindrical mass 2-1 mm. long, carry- 

 ing along with it the ruptured upper half of the perithecium clothed 

 with its spreading hairs. 



C. sphcerospermum, C. & E. has this same habit, and otherwise 

 much resembles this, but has the terminal hairs more or less branched 

 and coarser (5-6 //. thick below) and the sporidia globose, 6-7 p-. 

 with brown subglobose 3-32 r-. conidia. We have not seen the asci 

 in C. sphcerospermum but from the form of the spore-clusters they 

 appear to be obovate. 



Myriococcum consimile. 



On the basswood bottom and elm hoops of a barrel standing in 

 the cellar, Newfield, N. J., July, 1889. Perithecia gregarious, glo- 

 bose, 80-100 !i.. diam. carbonaceo-membranaceous, black, collapsing, 

 pierced wdth a small, round opening above, filled with olivaceous, 



