159 



The perithecia, especially when growing on the old Diatrype, 

 are surrounded by a dense growth of erect, black, septate, bristle-like 

 hairs 250 fi, or more, long. The perithecia sometimes collapse. 



H. lanuginosa, (B. & C.) 



Spluzria lanuginosa, B. & C. Grev. IV, p. 108. 

 ByssospJuzria lanuginosa, Cke. Grev. XV, p. 123. 

 Melanopsamma lanuginosa, Sacc. Syll. 2254. 



Perithecia globose, slightly flattened above, lanuginous at the 

 base. Sporidia oblong, uniseptate, curved, sometimes pointed at the 

 ends, so as to be biconical. 



On Robinia, South Carolina. 



B. Sporidia 3- or more-septate, hyaline. 



H. rhodospila, (B. & C.) 



Sphceria rhodospila, B. & C. Grev. IV, p. 141. 



Herpotrichia rhodospila, Sacc. Syll. 3622 . /+k>v <:*><*'* 



"Perithecia convex, seated on a black crust, brick-colored at the' 1 ' 

 apex. Sporidia between cymbaeform and fusiform, hyaline, 3-septate.(p 3 ^ 

 20 p long." 



On Cyrilla, South Carolina. 



Specimens on old oak stumps, Louisiana (Langlois 1692), and on 

 rotten maple, Newfield, N. J., have perithecia convex, rough, J mm. 

 diarn., with a conic-papilliform ostiolum. Asci clavate-cylindrical, 

 about 65x8 /i, with paraphyses. Sporidia biseriate, fusoid, slightly 

 curved, hyaline, 3-septate, 20-22x4-5 fi. The "brick-color" in these 

 specc. is very faint. 



H. leucostoma, Fk. Bull. N. Y. State Mus. No. 2, p. 23. 



Perithecia small, 300-450 p. broad, numerous, somewhat crowded, 

 subglobose, seated on or involved in a blackish-brown tomentum, the 

 ostiola naked, not prominent, whitish when moist, grayish or sordid 

 when dry. Asci cylindrical or subclavate, 150-200x10-15 p.. Spo- 

 ridia crowded or biseriate, oblong-fusoid, at first uniseptate, constricted 

 at the septum, with 2-3 nuclei in each cell, then 3-5-septate, hyaline, 

 30-40 p long, 7 1-8 fi broad. 



On dead branches of Acer spicatum, Catskill Mountains, N. Y. 



The whitish ostiola are a marked feature. It is distinguished 

 from H. Scheidermeyeriana, Fckl., by its much smaller perithecia 

 and the more numerous septa of the sporidia ; nor were any globose 

 appendages observed at the ends of the sporidia. 



