184 



large and nearly circniar opening. Asci clavate-eylindncal, 130 x 

 22 /i, with abundant parapliyses. Sporidia biseriate, broad navicular- 

 fusiforrn, 3-septate, yellow, becoming brown, 35-45x11-15 [i. 

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



M. Porothelia, (B. & C.) 



Sphixyia porothetia, B. & C. Grev. IV, p. 142. 

 I^ptosphtEria steyetcola. Ell. Am. Nat. March, 1883. p. 317, 

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



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

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

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

 i>rownish, 11-13 x 3-3| ji. 



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 fi), at first immersed, except 

 the papilliform ostiolum, finally partially erumpent, clothed above with 

 short, black spines, 20-25 x 4 ^ long. Asci oljlong-clavate, 35-40 x 

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

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



On some thick, effused, Co;'^/ci««/, ? growing on the base of trunks 

 of Moruti rubra, Delaware (Commons). 



Differs from M. Porothelia, (B. <fe 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.) 



Sphieria 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 /i. 



On rotten wood, Nazareth, Pa. 



This is a different thing from Nitschkia exilis, Fckl. Symb. j). 

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



M. sqiiamnlatum, (Schw.) 



SphcEiia sguamulata, Schw. Syn. N. Am. 1538. 



ConiochcEta i^Chtieiomastia) sguamulata, Cke. Grev. XV, p. 83. 



Perithecia cai'bonaceous, ovate-globose or irregular, scattered or 

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

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



