4o8 Natural History Bulletin. 



ing black outside, of light and corky substance, umber colored 

 within; margin reflexed, sub-lobate or undulate. Perithecia 

 monostichous, peripherical, narrowed-ovate, i mm. high, 14-% 

 mm. broad, crowded; ostiola papilliform. Asci cylindrical, 

 p. sp. about 60x7 ("5 with filiform paraphyses, 8-spored. Spor- 

 idia navicular-oblong, pale brown, uniseriate, 8-12x3^-5,". 



Allied to H. -petersii B. & C, from which it differs in the 

 reflexed margin of the stroma and the monostichous perithecia. 



Ometepe (B. S. & C. L. S.) ; and on firewood of a steamer, 

 near Castillo Viejo (B. S.) 



H. PERFORATUM (^ScJlW.) Fr. ? 



A few specimens having the appearance of H. perforatum 

 (Schw.) but the few sporidia only 6-7x3/* (Ellis). 

 On bark of decaying branch, Ometepe. (B. S.) 



H. RUBiGiNosuM {^Pcrs.) Fr. 



Many specimens of this species were collected. One speci- 

 men of this species apparently, on a rotten "bamboo cane," is 

 a very thin form. On wood, Ometepe (B. S. & C. L. S.); 

 and Castillo Viejo (C. L. S.) 



H. PAPiLLATUM E. & E. n. sp. 



(H. TERES B. & C, in Herb. Berk. sec. Cke.) 



Stroma pulvinate, irregular in shape, 4-6 cm. long, 2-4 cm. 

 wide, 3-4 mm. thick, clothed at first with an olive-yellow 

 conidial layer which becomes reddish-ferruginous and finall}^ 

 disappears, leaving the stroma black. Perithecia monosti- 

 chous, peripherical, oblong or cylindrical, i-i^ mm. long, 

 their apices prominent, slightly flattened, with a papilliform 

 ostiolum, finally perforated. Asci cylindrical, 70-90/* long 

 (p. sp.), with a slender stipe 30-35 " long, paraphysate, 8- 

 spored. Sporidia narrowed-elliptical, nucleate, olivaceous, be- 

 coming opake, 10-12 X4>^-6". Conidia globose, minute. 



This is certainly different from H. teres Schw. 



