124 



hairs. Ch. sphmrospermum, C. & E. lias the same habit and otherwise 

 much resembles this, but has the apical hairs more branching and the 

 sporldia larger (7-8 /i) and globose. 



On the basswood bottom and hickory hoojis of a barrel standing- 

 in a cellar at Newfield, N. J. and on an old wooden churn in a cellar, 

 at Manhattan, Kansas (Kellei-man), on decaying ])aper, Columbia, Mo. 

 (Galloway), and Alabama (Atkinson). 



The mode of branching is similar to that in Ch. chartariitn, Ehr , 

 the main axis being prolonged 10-15 ii beyond the point of separation 

 or bifurcation, the prolongation being somewhat enlarged and hyaline. 

 In the ilissouri specimens, the apical bristles were swollen at inter\'als. 

 This peculiarity was not observed in the other specimens. 



Ch. pannosuni, Wallr. Fl. Cr. Ger. p. 267., Rab. Deutschl. Kr. 

 Floi'a I, p. 227. Zopf Entw. der Asc. (Chaetomiuni), p. 276. 



Ck. velutinum, K. & E. Journ. Mycol. I, p. 90. 

 Exsicc. Kl. Herb. Mycol. II, 748.— M, March. 1548.— Roum. F. G. 51.— Rab. F. E. 2025. 



Perithecia closely gregarious or also scattered and single, subglo- 

 bose, large (J-| mm.), very fragile, dirty black; ostiolum large, short 

 and thick, papilliforin and colorless; rhizoids (basal root-like hairs) 

 more numerous than in the other species. The perithecia are covered 

 with a dense coat of dark, rough, crisped and interwoven hairs, causing 

 them to appear confluent, forming continuous or partially interrupted, 

 dense, felt-like, black patches several centimeters in extent, much like 

 the subicuhim oi Roselli iiia aquila. The lateral hairs are mostly simple 

 while the apical ones are longer, stouter and straighter, 7-8 /i thick at 

 base and sparingly branched. Asci (sec. Zopf) club-shaped, with a 

 stipe-like base, reaching 100 // long by 15-20 /i broad. Sporidia 

 viewed in front, broad-elliptical, plainly but briefly apiculate, viewed 

 edgewise, fiisoid, 11-13 x 7-8 //.. 



On a iMrtten maple log, Oregon (Carpenter). 



Ch. olivacftum. C. & E. Grev. VI, p. 96. 



Exsicc. Ell. N. A. F. 56. 



Perithecia gregarious, ovate-globose, about 250 n high by 200 fi 

 bi'oad, thickly and evenly clothed with soft, granular-roughened, flex- 

 uous, sparingl}' septate, simple, greenish-yellow hairs 3-4 n thick, with- 

 out any very distinct apical tuft of coarser hairs, as is usual in most of 

 the species. Asci oblong-clavate, p. sp. 35-40 x 1 2 /i. Sporidia 

 crowded, globose-elliptical, apiculate at each end, yellowish-brown, 

 9-12 x 8-9 //, (mostly 9-11 x 7-8 /i), with one or more nuclei. 



On decaying stems of Erigeron, New Jersey and Louisiana. 



