689 



5-septate, 38-40 x 8-10 p. In the Newfield specc. occasionally a free 

 sporidium may be found with 4 septa, but this is exceptional, 



M. fusisporum, (Cke.) 



Lophium fustsporum, Cke. Grev. IV. p. 114. 

 Mytilidionfusisporum, Sacc. Syll. 5712. 

 Exsicc. Ell. N. A. F. 858. 



Perithecia erect, expanded above from a narrow base, laterally 

 compressed, thin and fragile, shaped like the blade of a hatchet with 

 the corners rounded off, black and subshining, about 400 p. broad and 

 high, finely striate both longitudinally and transversely. Asci cylin- 

 drical, short-stipitate, paraphysate, 100-110 x 8-10 /2. Sporidia irregu- 

 larly biseriate, fusoid, yellowish, nearly straight, 40-50x4-5 /^, about 

 7-septate. 



Not uncommon around Newfield, N. J., on old pitchy pine wood. 



TRYBLIDIUM, Dufour. 



Ann. Sci. Nat. XIII, t. 10, fig. 3. 



Perithecia erumpent-superficial, oblong or lanceolate, corneo- 

 coriaceous; lips swollen and open. Asci paraphysate, elongated. 

 8-spored. Sporidia oblong, 1-3-septate, dark-colored. 



The genus belongs really in the Discomycetes, but for the present 

 we include it here. 



* Sporidia uniseptate. 

 Tr. hysteriuuni, Dufour, 1. c. 



Tryblidium rufuZum, Spreng. var. simplex, E. & E. Journ. Mycol. V, p. 30. 

 Hysterium elevatum^ Pers. Myc. Eur. I, tab. I, fig. 4. 

 Hysterographium elevatum, Desm. XXII, Not. p. 18. 

 Exsicc. Desm. PI. Crypt. Ed. I, No. 996, id. Ed. II, 296. Moug. & Nestl. Stirps. Vog. 1070 



Perithecia erumpent-superficial, the central part attached, the 

 ends free, 2-3 mm. long, 1 mm. or more wide, slaty-black, at first sub- 

 globose, closed and covered, then erurnpent and opening with a 

 roundish aperture which soon becomes elongated, exposing the ellip- 

 tical, brick-red disk; lips swollen, incurved but not closed, when dry, 

 transversely wrinkled. Asci cylindrical, 120-160 (p. sp. 110)xl5- 

 16 ft, overtopped by the abundant paraphyses. Sporidia uniseriate, 

 elliptical or ovate, uniseptate and constricted, dark brown, 18 22 x 

 8-10 ;i, (25-30 x 12-14ju, Rehm; 20-28 x 12-15 p, Sacc.). 



On a dead limb, Ocean Springs, Miss. (Earle). 



The Mississippi specc. agree with those in Desm. Exsc., but we 

 can not make the sporidia as large as stated by Rehm and Saccardo. 



87 



