636 



nent, with papilliform ostiola. Asci cylindrical, 8-spored, p. sp. about 

 22x6//. Sporidia uniseriate, ovate, inequilateral, brown, 10-12 x 

 4-6 fju 



On bark of dead beech trees, common. . 



The conidial hymenium, which clothes the young stromata, is of 

 a pale clay-color, becoming cinereous. Conidia obovate-subglobose, 

 very small. The species is widely diffused and is found also on oak r 

 Nyssa and maple. A small form, var. minor, is mentioned on decay- 

 ing Polyporus in Borneo. In the old and blackened state, this species 

 resembles outwardly some forms of H. coccineum, Bull., from which 

 it differs in its smaller, connate stromata and larger perithecia, and in 

 the different color of the young stroma. 



H. turbinulatum, (Schw.) 



Sphceria turbinulata, Schw. Syn. N. Am. 1204. 



Turbinate-pulvinate, applanate, subconfluent, but with the stro- 

 mata (pulvinuli) always distinct. Perithecia larger than usual, not 

 peripheric but scattered through the entire stroma even to the base ; 

 external surface granulated, pulverulent, rugose with the minute, 

 rather prominent ostiola. Stroma scanty, dirty whitish. Stromata 

 arranged in a seriate manner so as to bear some resemblance to Hebrew 

 letters, and seated on a black crust which overspreads the bark. 



On beech wood, Mt. Pocono, Pa. (Schweinitz), Ohio (Morgan), 

 New York (Fairman). 



H. Bagnisii, Sacc, can hardly be distinct from this. The spec, 

 in Herb. Schw. has the stromata subturbinate, 3-4 mm. diam., flat- 

 tened-convex above, mammillose from the slightly projecting perithecia. 

 Asci cylindrical, p. sp. 40-45 x 5-6 fi, Sporidia uniseriate, navicular- 

 elliptical, dark brown, 8-10 x 3|-4J fi. Cooke in Grev. makes them 

 12 x 3 1 jut. The species very much resembles outwardly H. cohcerens, 

 Pers., only the stromata are more prominent and mostly a little 

 narrowed below. 



H. teres, (Schw.) 



Sphceria teres, Schw. Syn. N. Am. No. 1178, new Am. Sph. Journ. Acad. p. 10. 



tab. II, fig. 7. 

 Hypoxylon teres, Sacc. Syll. 1493, Cke. Syn. 896. 



Pulvinate, sub terete-cylindrical, apex obtuse, rounded, surface 

 tuberculose-undulate, rust-colored. Stroma sooty-black, surrounded 

 and roughened by the immersed, peripherical perithecia. The cylin- 

 drical, pulvinulate, scattered stromata are about 3 lines high and 1J 

 lines thick. In some respects allied to H. rubiginosum. 



On bark, locality unknown. 



The spec, in Herb. Schw. is too imperfect to give an idea even 

 of the outside appearance of this species. 



