631 



Stroma erumpent-superficial, solitary or subconfluent, subglobose, 

 hemispherical or oblong, J-f cm. across, dull purplish-red, becoming 

 black, grayish-black within, roughened by the distinctly prominent, 

 ovate, monostichous, fx mm. perithecia. Asci (p. sp.) 75-80 x 

 7-8 jut, with abundant paraphyses. Sporidia uniseriate, opake, in- 

 equilaterally-elliptical, 10-12 x4-5f p (12-14 x 6-6 J /x, Sacc). 



On bark of dead oak, Decorah, Iowa, and on bark of dead plum 

 trees, and (maple)? Vermillion Lake, Minn. (Holway). 



According to Saccardo, the perithecia are larger and more promi- 

 nent than in the typical form, which is described- by Nitechke as 

 having the stroma pulvinate, depressed, rarely hemispherical or nearly 

 globose, solitary or connate, with globose, crowded, subdistichoos 

 peripherical perithecia, and sporidia 10-12x6/*. The smaller Btro- 

 mata resemble those of H.fuscum, from which it is distinguished by 

 its smaller sporidia. From H. multiforme, it is distinguished by its 

 rather larger, darker sporidia. 



H. enteromelum, (Schw.) 



Sphcsria enteromela, Schw. Journ. Acad. Phila. Vol. V, p. 10. 



Stromata pulvinate, often longitudinally confluent for six inches 

 in length, rusty-red, surface not granulated, variable in shape, sub- 

 compressed, very black within, covered above with a furfuraceous. 

 pulverulent, rust-colored bark. Immersed in the stroma are a few 

 perithecia of larger size, the others being minute, peripherical, globose 

 and black. The stroma stains the inner bark black. In the nature of 

 the outer layer of the stroma, this is allied to H. coccineum. 

 Cooke in Grev. XI, p. 123, the sporidia are 10 x 4 p.. 



Erumpent from cracks in the bark of dead chestnut trees, Beth- 

 lehem, Pa. (Schw). Rather rare. 



H. Vera Cruris, Berk. & Cke. Grev. XI, p. 129. 



Subglobose, superficial, often confluent, 1-2 cm. diam.. brig] it 

 rust-color, sooty black within. Perithecia of medium size, ovate, 

 peripherical, somewhat prominent. Asci cylindrical. Sporidia ellip- 

 tical, attenuated at each end, brown, 20x8 a. 



On rotten wood, Vera Cruz, Mexico (Salle). 



fl. quadratum, (Schw,) 



Sphceria quadrata, Schw. Syn. N. Am. 1223. 



Stroma round, flattened-pul vitiate, reddish-black, 2-3 mm. diam., 

 margin abrupt all round. Perithecia scarcely prominent Ostiola 

 papilliform. Sporidia overlapping-uniseriate, brown, continuous, 16- 

 20 x 8-10 //. 



