483 



40-50x10-12//, clavate, substipitate. Sporidia subhiseriate, allan- 

 toid, slightly curved, yellowish-hyaline, ]2-15x 3J-4 pL. 



On branches of Ligustrmn, Bethlehem, Pa., and on dead limbs of 

 Clethra alnifbUa, Newfield, N. J. 



We have seen no specc. of Sphanria ligustrina, Schw., but from 

 the diagnosis given by Schweinitz there can not be much doubt that it 

 belongs here. The specc. of Valsa obtecta, C. & E., have been care- 

 fully compared with V. Cypri, Tub, as represented in Rehm's Asc. 

 226, and seem to us to be the same. We find the ostiola united in a 

 disk, but there is on the same specimen a Valsa similar in outward . 

 appearance, with the ostiola separate. Sphceria pruinosa, Fr. S. M; 

 II. p. 486, is reckoned as the spermogonial stage. 



V. Ceanothi, (Schw.) 



Sphcsria Ceanothi, Schw. Syn. N. Am. 1376. 



Subpustulate, closely covered by the epidermis, only the promi- 

 nent, black, round, shining, perforated ostiola visible. Perithecia sub- 

 erect, circinate in a cortical stroma, pyriform or irregular, white inside. 

 Pustules minute, IJ lines diam. Sporidia (sec. Stevenson 1. c.) allan- 

 toid, nucleated, 21Jx6j //. 



Frequent on dead stems of Ceanothvs, Bethlehem, Pa. (Schw.). 



V. mesoleiica, B. & C. Grev. IV, p. 103. 



" Disk white, surrounded by the black ostiola, or sometimes dotted. 

 Sporidia hyaline, sausage-shaped, 20 jj. long." 



On Viburnum dentatum, Pennsylvania (Michener). 



V. inclinis, Sacc. Syll. I, p. 137. 



yalsa acdinis, Fr. in Cooke's Valsei of the U. S. p. n6. 



Perithecia circinate, about 5 together, globose, erect. Ostiola 

 parallel, crowded, thickened, prominent. Sporidia collected in the 

 upper part of the asci, allantoid, 20-25 /i long. 



On branches of Sassafras, Bethlehem, Pa. (Schw.). 



The Valsa acdinis, Fr., of the European mycologists has sporidia 

 only 7-9 x 2 // (Sacc), or 12-14 // long (De Not), and must be different 

 from the V. acdinis, of Cooke's Valsei of the U. S. 



Species imperfectly known. 



V. laurina, C. & E. Grev. VII, p. 9. 



Covered by the blackened epidermis. Pustules convex. Ostiola 

 convergent. Asci clavate. Sporidia cylindrical, slightly curved, ob- 

 tuse, hyaline, 20 x 4 }i. 



On twigs of Sassafras, New Jersey. 



