22 PBOCEEDINGS OF THE ACADEMY OF [1895. 



better to put the N. A. F. specc. as a mere var. of that in Herb. 

 Schw., viz., var. rhodomphala Berk. Sphceria rhodomphala Berk., 1. c. 



Rosellinia araneosa (Pers. ). 



Sphceria araneosa Pers., Icon, et descr., 1, p. 24, tab. VII, fig. 6, a-h. 

 Rosellinia araneosa Sacc, Syll., I, p. 259. 



Perithecia crowded in elongated groups \— 1 cm. long, 3-4 mm. 

 wide, globose, papillate, | mm. diam. Sporidia (free spores) in- 

 equilaterally elliptical, brown, continuous, 7-9 x 5-6//. 



Has the external aspect of Rosellinia medullaris (Wallr. ), from 

 which it differs in its rather smaller perithecia and very different 

 sporidia. 



Rosellinia thelena Fr., var. terrestris. 

 Sphceria terrestris Schw. in Herb. 



Perithecia depressed- globose, grayish-brown, smooth, with a dis- 

 tinct papilliform ostiolum, gregarious, or crowded, about I mm. 

 diam., connected at base by a thin, brown subiculum of matted 

 hairs. Asci (p. sp.) 130 x 6//, paraphysate, 8-spored. Sporidia 

 overlapping-uniseriate, oblong - fusoid, deep brown, continuous, 

 straight, 22-25 x 5-7/*, with a straight, hyaline, mucronate append- 

 age at each end. 



On the ground, New York State (Schw.). 



Melanomma exile (Schw.). 

 Sphceria exile, Schw. in Herb. Schw. 



Perithecia scattered, erumpent-superficial, black, minute, 120- 



150// diam., finally slightly collapsed. Ostiolum conic- papilliform. 



The asci could not be made out but sporidia (free spores), were 



abundant, oblong- elliptical, 13-16 x 5-6//, 3-septate and brown, 



occasionally with one or two cells divided by a longitudinal septum. 



The subiculum (arachnoid, whitish) is hardly perceptible. The 



perithecia, if pilose at all, are very indistinctly so. 



Rosellinia medullaris (Wallr.). 



Sphceria medullaris Wallr., Fl. Crypt. Germ., II, p. 792. 



The spec, in Herb. Schw. labeled Sphwria mammiformis is this 

 species. The perithecia are too small for B. mammiformis, and dis- 

 tinctly ovate. The purplish pruinose pubescence is also distinctly 

 to be seen. Sporidia oblong or oblong-elliptical, often subinequi- 

 lateral, 18-22 x 8-10//. 



Rosellinia rhodomela (Schw. J, not Fr. 



Perithecia gregarious, superficial, minute (200//), ovate or sub. 



