123 



rough. Asci club-shaped, short-stipitate. Sporidia flattened, the broad 

 side elliptical, apiculate, 10-12 x 9-10 /i, olive brown; when viewed 

 edgewise, fusiform, 7-8 ji broad. 



On decaying herbaceous stems common. 



Ch. murorum. Cda. Icon. I. p. 24. tab. YII, fig. 293. B. 



Exsicc. Rab. F. E. 234- 



Perithecia globose, o-s-ate or elliptical, varying in size from 160-280 

 ju high by 160-230 p. broad. Ostiolum short, papillifbrin, distinct, 

 sometimes collapsing; apical haii's simple, 2-3 times as long as the 

 height of the perithecium, granular-i'oughened, dark brown, broadly 

 arched with lips incurved; sides of the perithecia more sparingly 

 ■clothed with finer, subulate haii's brown below and subhyaline above. 

 Asci broad-clavate, short-stemmed, 8-spored. Sporidia narrow-ellipti- 

 cal, scarcely apiculate, olive or chocolate-brown, 12-16 x 7-8 fi, slightly 

 compressed. 



On bark of dead poplar, Montana (Anderson No. 651). 



Ch. sphserospermum, C. & E. Grev. A^IIl, p. 16. 



Perithecia superficial, black, strigose, crowded in elongated groups, 

 and connected by a loose mycelium, ovate globose. Hairs rigid, erect, 

 elongated, slender, smooth, brownish-black, divaricately branched above, 

 the main axis prolonged at the point of branching or bifurcation ex- 

 actly as in Ch. i>iifiiUinii. Sporidia viewed in front nearly round, 

 7-8 n diam. (10 [x Cke.), viewed edgewise elliptical, 7-8 x3 ,«. 



On the basswood bottom of a barrel standing in a cellar at New- 

 held, N. J., and found in thesame situation by Rev. J. L. Zabriskie, at 

 Flatbush, Long Island. Differs fi-om Ch. pusilhim onl}- in its larger, 

 darker, nearl}- round sporidia. 



Oh. pusillum, E. & E. Proc. Phil. Acad., July, 1890. (Plate 16) 



Perithecia gregarious, b^ack, membranaceous, ovate, about 200 /i 

 high by 150 fi thick, the lower part clothed with line, looselj- entan- 

 gled, pale, branching, slate colored hairs, the upper part more sparingly 

 «ath lono'er, darker, nearly smooth and simple, partially transparent, 

 continuous or faintly septate hairs, about 4 /jl thick at the base and 

 tapering above. Asci narrow-cylindrical, 30 x 3^ /^ (p. sp.), without 

 paraphyses. S])oridia uniseriate, elliptical, .brown, compressed, 3J-5 

 X 2i-3- /-/, and lJ-2 /-i thick. The asci soon disai)pear and the spo- 

 ridia are expelled in a cylindrical niass^-l mm. long and carrying along 

 with it the upper part of the perithecium clothed with its spreading 



