462 



nent, o'owned with a rerv small disk, whicli penetrates the epidermis, 

 but hardly rises above it. Perithecia 4-12 in a stroma, subcircinate, 

 buried in the unaltered substance of the bark, crowded, small, globose, 

 with very small, short, black and shining, crowded ostiola piercing the 

 small, flat disk. Asci narrow-clavate, sessil^, 24-28 x 4 ;U. Sporidia 

 biseriate, allantoid, hyaline, 6-7 x 1 J //. 



On dead twigs of Gastanea and •Blgnonia, Carolina (Curtis), on 

 dead limbs of Cornus, Canada (Dearness). 



This appears to differ from V. ceratophora, Tul., in its smaller 

 disk, and perithecia only 4-12 in a stroma. 



V. lutescens, Ell. Bull. Torr. Bot. Club. IX, p. 111. 



Exsicc. EU. N. A. F. 876. 



Stromata cortical, dark brown inside, conical, about ^ mm. broad 

 at base, not circumscribed, thickly scattered over the matrix. Peri- 

 ^thecia 10-20, subcircinate in the bottom of the stroma, small (^ mm. 

 or -f^ss), necks converging, slender, with their short-cylindrical, stout, 

 obtuseT^SJ^ooth or sometimes substellate-furrowed, soon broadly and 

 irregularly perforated ostiola erumpent around the conic-convex, sub- 

 coriaceous tora^QCO-brown disk. Asci lanceolate-clavate, 35 x 5-6 fz. 

 Sporidia subbiser^ate, allantoid, hyaline, 5-7 x IJ /i. Spermogonium 

 occupying the centei\ of the stroma, pierced above, lined inside with 

 innumerable, slender, ^mple or branched basidia, bearing minute (4-5 

 X 1 fj), hyaline spermatisJ. 



On dead limbs of Quercus coccinea, Newfield, N. J. 

 The wood beneath the stroma is generally tinged with yellow. 

 This differs from V. clausa, C & E. in its smaller sporidia and smaller 

 perithecia. 



V. Pini, (A. & S.) 



SphtEria Pini^ A. & S. ConspA 

 Valsa Pini, Fr. Summa Veg. ^c. p. 412. 

 Exsicc. Fckl. F. Rh. 608.— Rab. F. E. lA 634. 1013.— Rehra Asc. 432.— Sydow Myc. March. 

 +77. 1950. 1829.— Thum. M. U. 2256.-!-Rouin. F. G. 5028. 



StTomata evenly scattered or subgregarious, hemispherical, 1|-2| 

 mm. across, covered by the pustuli{brm-elevated epidermis, which is 

 pierced or ruptured by the closely pj^icked, short ostiola with rounded 

 or obtuse tips, forining a black, flat or concave disk. Sometimes the 

 marginal ones and sometimes all are elongated (|-1 mm.), but usually 

 they remain short. Perithecia very\small but numerous, 20-30 in 

 a stroma, closely packed, globose, with short necks. Asci narrow-cla- 

 vate, sessile, 25-30 x 5-6 /i. Spoi-idia ii]regularly crowded, cylindrical, 

 curved, hyaline, 6-9 x 1^ /^. 



