180 NOTICES OF NORTH AMERICAN FUNGI. 



On Viburnum dentation. No. 4208. On Fraxinus Americana. 

 No. 4201. 



Perithecia almost entirely concealed by the cuticle forming little 

 papillas ; spores exactly elliptic, -001-013 long, hyaline. There 

 are multitudes of specimens from various quarters which either 

 belong to one common species or are mere conditions of Diplodia 

 vulgaris, Lev. All are no doubt mere states of Spli&ria or allied 

 ascomycetous genera, the spores varying slightly in size. It is 

 not thought worth while enumerating them. 



409 (bis) Sphaeropsis tephrospora. B. Sf C. — Peritheciis subcor- 

 tice nigrifacto, tectis, sero rima longitudinali emergentibus, sporis 

 brunneis ellipticis vel oblongo-ellipticis uninucleatis. 



On twigs of Magnolia. Car. Inf. No. 5013. 



Perithecia at first quite concealed, then partially exposed by the 

 splitting of the cuticle, at first presenting a pallid disc ; spores 

 elliptic or oblong elliptic uninucleate, '00025 long, about half as 

 mach wide, with a central nucleus. 



410. Sphaeropsis parasitans. B. <Sf R. — Peritheciis minutis sparsis 

 papillasformibus ; sporis ellipticis binucleatis. 



On some Hypoxylon, of which perhaps it is a mere condition. 

 Cotoosa springs, Ravenel. No. 1745. 



Perithecia minute, scattered papillaeform ; spores elliptic, brown, 

 with two nuclei, "0003 long, about half as much wide. 



410 (bis). Sphaeropsis micromegala. B. Sf C. — Peritheciis hyste- 

 riiformibus minutis nitidis, sporis elipticis hyallinis. 



On naked roots of pine. Alabama, Beaumont. No. 5090. 



Perithecia minute, hysteriiform, shining ; forming little linear 

 patches, the fibres of which are bleached; spores elliptic, with one 

 side less arched, -001 long, hyaline, rather more than half as much 

 wide. 



411. Sphaeropsis dryina. B. Sf C— Peritheciis papillaeformibus 

 epidermide cinctis ; sporis obovatis hyalinis. 



On twigs of oak. Pennsylvania, Michener. No. 4139, 

 Perithecia papillgeform, surrounded by the cuticle, which gives 



them a pale appearance ; spores obovate, *00061ong, about half as 



much wide, hyaline. 



411 (bi?). Sphaeropsis Fennsylvanica. B. % C— Peritheciis pa- 

 pillasformis epidermide cinctis ; sporis oblongo-obovatis hyalinis. 



On branches apparently of elder. Pennsylvania, Michener. 

 No. 3963. 



Perithecia minute, gregarious papilkeform, surrounded by the 

 cuticle, the bright black apex only penetrating ; spores oblong- 

 obovate, -001 long, with one or sometimes two nuclei. Sphceropsis 

 stenosporas, B. & C, on peach, Pennsylvania, Michener, No. 4233, 

 may be considered as a variety. The spores are the same, but 

 rather darker. 



