482 



crowded, globose, buried in the unaltered bark. Ostiola globose or 

 ovoid, or almost conical, large, black, fasciculate or irregularly erum- 

 pent, or sometimes in a circle around the margin of a whitish disk. 

 Asci narrow-clavate, oblong, sessile, 64 x 10 pt. Sporidia biseriate, 

 cylindrical, curved, hyaline, 14-18 x 3-5 p.. 



On branches of Celastrus, Carolina (Schw.). 



This rests only on the authority of Schweinitz, not having been 

 found here since his time. The sporidia (sec. De Notaris) are unisep- 

 tate, and if so, this would come in Diaporthe (Chorostate.) 



V. operta, (Fr.) 



Sphcsria operta, Fr. S. M. II, p. 407, Schw. Syn. N. Am. 1381. 



Circinate, perithecia small, buried in the inner bark, irregularly 

 aggregated, attached to a crust which covers them above. Ostiola 

 twice as long as the perithecia, erumpent, at first convergent, then 

 erect, perforated at the apex. Asci clavate-cylindrical. Sporidia 

 allantoid, hyaline, 18 x 6 p.. 



On branches of Populus Jlalica, Bethlehem, Pa. (Schw.). 



V. Thtijse, Pk. 40th Rep. p. 67. 



Exsicc. Ell. & Evrht. N. A. F. 2d Ser. 2518, 2519. 



Pustules scattered, slightly prominent, closely covered by the epi- 

 dermis. Perithecia nestling in the inner bark, subcircinate, 5-10 in 

 a pustule, about mm. cliam. Ostiola erumpent in a small, round , 

 whitish disk, obtuse, black, conic-papilliform. Asci oblong-clavate, 

 p. sp. about 40 x 6 //, subsessile. Sporidia allantoid, 10-14 x 2-2| fi 7 

 hyaline, not strongly curved. 



On dead branches and foliage of Thuja occidentalis, New York 

 State (Peck), Canada (Dearness). 



' Cypri, Tul. Sel. Carp. II, p. 194, tab. XXV, figs. 10-20. 



Sphceria Ligustri, Schw. Syn. N. Am. 1684. 



Valsa obtecta, C. & E. Grev. VII, p. 9, (not Schw. Syn. N. Am. 1639). 

 Exsicc. Fckl. F Rh. 1969. Rehm Asc. 226. Sydow, M. March. 911. 



Stromata scattered, small, depressed-conical, only slightly promi- 

 nent, covered by the epidermis and, when this is peeled off, coming off 

 with it. Perithecia 3-8, medium size (J-| mm.), ovate, subdecum- 

 bent, sunk in the inner bark and leaving their impress on the surface 

 of the wood or on the surface of the inner stratum of the bark, scarcely 

 crowded, collapsing, subcircinate, necks very short, with their large, 

 obtuse, rounded-conical ostiola united and forming a small, black disk 

 barely erumpent through a short fissure in the epidermis. Asci p. sp. 



