184 



large and nearly circular opening. Asci clavate-cylindrical, 130x 

 22 /a, with abundant paraphyses. Sporidia biseriate, broad navicular- 

 fusiform, 3-septate, yellow, becoming brown, 35-45x11-15 fjt. 

 On dead sage brush, Utah (S. J. Harkness). 



M. Porothelia, (B. & C.) 



Sph&ria porothelia, B. & C. Grev. IV, p. 142. 

 Leptosphczria stereicola, Ell. Am. Nat. March, 1883. p. 317. 

 Melanomma Porothelia, Sacc. Syll. 3244, Cke. Syn. 3126. 



Perithecia innate-erumpent, minute, scattered, each seated in a 

 little depression. Asci subcylindrical, 50-60 x 7-8 /i. Sporidia 1-2- 

 seriate, shortly oblong-fusiform, rather obtuse at either end, triseptate, 

 brownish, 11-13 x 3-3 \ ft. 



On the hymenium of some Stereum, South Carolina, on Stereum 

 bicolor, Pers. Delaware (Commons), Iowa (Holway). 



M. spiniferum, E. & E. (in Herb.) 



Exsicc. Ell. & Evrht. N. A. F. 2d. Ser. 2610. 



Perithecia scattered, minute (50-75 //), at first immersed, except 

 the papilliform ostiolum, finally partially erumpent, clothed above with 

 short, black spines, 20-25 x4 /i long. Asci oblong-elavate, 35-40 x 

 10-11 fi, subsessile. Paraphyses filiform. Sporidia 2-3-seriate, fusoid. 

 3-septate, not constricted, olive-brown, 12-14x3-3| fi. 



On some thick, effused, Corticium ? growing on the base of trunks 

 of Morus rubra, Delaware (Commons). 



Differs from M. Porothelia, (B. & C), in its spiny perithecia. 

 which are also only partially erumpent, and in its shorter, broader 

 asci. In M. Porothelia the perithecia are finally almost superficial, 

 and 110-120 fi diam., and not spiny at any stage of growth. 



M. exile, (Schw.) 



Sphceria exilis, Schw. (in Herb. Berk.) Grev. XV, p. 82. 



A specimen from Schweinitz, in Herb. Berk., has small ( mm.), 

 pilose perithecia, with fusiform, brown, 3-septate sporidia, 16-18x5 ti. 



On rotten wood, Nazareth, Pa. 



This is a different thing from Nitsckkia exilis, Fckl. Symb. p. 

 165, of which Sphceria exilis, A. & S. is quoted as a synonym. 



M. squamu latum, (Schw.) 



Sphceria squamulata, Schw. Syn. N. Am. 1538. 



Coniochczta {Chcetomastia) squamulata, Cke. Grev. XV, p. 83. 



Perithecia carbonaceous, ovate-globose or irregular, scattered or 

 subconcrescent, above the medium size, seated on a black, even, broad* 

 ly effused, or sometimes scanty and very rough, black crust overspread-! 





