NOTICES OF NORTH AMERICAN FUNGI. 51 



836. Hypoxylon glomus. B. cj- <7.— Ermnpens pulvinatum sub- 

 angnlare nigrum ; peritheciis paucis ; ostiolis hie illic erumpen- 

 tibiis perforatis. 



New England, Murray. No. 5698.Sprague. No. 6273_. 



Erumpent, pulvinate, somewhat angular, black, with a little red 

 about the apex ; perithecia large, about five in each pustule. This 

 is clearly a very distinct species, but the specimens are unfortunately 

 old and without fruit. 



837. Hypoxylon leucocreas. B. 4' i?^7r.— Parvum pulvinatum e 

 peritheciis prominulis papillatum nitidum, intus niveum ; sporidiis 

 parvis ellipticis. 



On limbs of oak. Car. Inf. Eavenel. No. 1706. 



Small, about \ a line across, black, papillate from the projection 

 of the perithecia ; stroma snow-white ; asci linear ; sporidia in a 

 single row, minute, elliptic, brown. 



838. Hypoxylon bicolor. B. ^ C— Irregulare undulatum placen- 

 teeforme granulatum, intus niveum, 



Vermont. No. 5909. 



Irregular, strongly undulated, an inch or more across, finely 

 granulated, white within. This again is without fruit, but is a very 

 distinct species. 



* Hypoxylon enteromelum. Schvein. — On beech, Pennsylvania, 

 Michener.. No. 4354. Nova Scotia, Rev. J. D. Russell. No, 

 5901. 



839. Hypoxylon xanthoczeas. B. S( C. — Pulvinatum nigrum de- 

 mum confluens e peritheciis prominulis papillosum ; stromate flavo ; 

 ascis linearibus ; sporidiis uniserialibus ellipticis. 



New England, Sprague. No. 5374. 



At first distinct, pulvinate, then by confluence forming a mass 

 half an inch broad, black, papillate from the projection of the 

 minute perithecia ; asci linear ; sporidia uniseriate, elliptic, 0003 

 long. Differs from Montague's H. endoxanthum. 



840. Hypoxylon epixhodium. B. ^ ^ar.— Effusum tenue parvum 

 nigrum ex ostiolis prominulis papillosum; ascis linearibus; 

 sporidiis elliptic uniseriatis. 



Car. Inf. No. 3253. On branches of rose. Car. Inf. Ravenel. 



Effused, thin, forming small black patches, about two lines across, 

 papillose from the slightly prominent ostiola ; asci linear ; sporidia 

 uniseriate, elliptic. 



* Hypoxylon tuzbinulatum. Schwe'm. — On beech. Pennsyl- 

 vania, Micliener. No. 4216. 



* Hypoxylon callostroma. Schwe'm.— On Benzoin odoriferum. 

 Pennsylvania, Michener. No. 3959. No. 4346, on Primis verti- 

 cellatus. Alabama, Beaumont. No, 4619. 



Sporidia oblong, "0004 long. 

 ' 841. Hypoxylon Mozsei. B. d; C— Erumpens ; peritheciis magnis 



