506 



*"*** Species imperfectly known. 

 Eii. Mori -riibrse, (Schw.) 



Sphceria Mori-rubrce, Schw. Syn. N. Am. 1302. 



Bare, rather thick, scarcely concrescent, semiimmersed, some- 

 times confluent in patches J of an inch across, and sometimes subsimple 

 (subsolitary). Surface very uneven and rough. Ostiola subpromi- 

 nent, perforated. Perithecia rather large, monostichous, immersed in 

 a sooty-black stroma, entirely black outside. 



On decaying wood of Moras rubra, Bethlehem, Pa. (Schw.). 



Eu. confiisa, (Schw.) 



Sphceria confusa, Schw. 1. c. 1306. 



Broadly effused, not deeply immersed, concrescent, black, irreg- 

 ular in outline. Perithecia polystichous, in a black, pulveraceous 

 stroma, obovate, contracted above into a rough, subpyramidal, angular, 

 finally perforated ostiolum. 



On bark and wood, Bethlehem, Pa. (Schw.). 



The spec, in Herb. Schw. looks like some crowded Melanomma, 

 bat old and broken down, spores all gone. 



Eu. elongato-compressa, (Schw.) 



Sphceria elongato-compressa, Schw. 1. c. 1305. 



Patches abbreviated, much elevated, at first subimmersed, com- 

 pressed, seriately confluent longitudinally, rough, irregularly elliptical, 

 subconically compressed and elevated in the center. Ostiola irregular, 

 slightly prominent, subglabrous. Perithecia globose-depressed, rather 

 large, few, stroma very scanty and black. The wood is colliculose- 

 roughened, but does not turn black between the groups of perithecia. 



On decorticated wood, Bethlehem, Pa. (Schw.). 



The spec, in Herb. Schw. looks like some old Diatrype, but is 

 entirely without fruit. 



Eu. denigrata, (Schw.) 



Sphceria denigrata, Schw. 1. c. 1307. 



Broadly effused, crust thin and black, blackening the wood. On 

 this crust are seen wart-like processes longitudinally elongated, lying 

 parallel and subconfluent, formed by a congeries of perithecia im- 

 mersed in them with their minute ostiola seriately erumpent and but 

 slightly prominent. The perithecia are white inside, depressed-glo- 

 bose, scattered in the stromatic crust. 



On wood of Rhododendron maximum, Bethlehem, Pa. (Schw.). 



The spec, in Herb. Schw. is a mere steiile crust. 



