481 



Asci clavate. 50-55x7-8 u.. Sporidia subbiseriate, allantoid, color- 

 less, 10-13x2-21^. 



On dead branches of Fraxinns Americana, Canada (Macoun). 



The pustules are often arranged in rows and tlie disk becomes 

 barker with age. 



We have specimens from Dr. Macoun labeled V.fraxinina, Pk., 

 but, not being certain whether they are genuine, we have not ventured 

 to give any supplementary notes. 



Valsafraxinina, Pk. 1. c., differs only in its larger sporidia (12- 

 17x4-5 IJL) and the absence of any gray pulverulent disk. The two 

 are doubtfully distinct. 



/ 



V. dissepta, Fr. Summa Yeg. Sc. p. 41 L 



Sph&ria dissepta, Fr. S. M. II. p. 392. 



Spluzria stipata, Curr. iu Linn. Trans. XXII, p. 2/4, fig. 197. 

 Diatrype stipata, Berk. & Br. Ann. & Mag. Nat. Hist. Ser. Ill, vol. VII, p. 452 

 / 'c.lsa hypodermia, B. & Br. 1. c., Ill, p. 368. 

 Quaternaria dissepta, Tul. Sel. Carp. II, p. 107. 



Kxsicc. Rehtn Asc. 49. Cke. F. Brit. 2d. Ser. 230. Plowr. Sph. Brit, 44. Roum. F. (\ 

 1476. Sydo\v, M. March. 1718. Rab. F. E. 320. 



Stromata mostly crowded in patches of irregular outline, 1-3 cm, 

 across arid circumscribed by an irregular, undulate, black line. Peri- 

 thecia sunk in the unaltered substance of the bark, covered by the 

 slightly raised epidermis. 2-6 in a stroma, subcircinate or irregularly 

 -cattered or even solitary, deeply buried and separated by the paren- 

 chyma of the stronia. Necks short. Ostiola thick, convergent and 

 piercing the epidermis together in a compact fascicle, but only slightly 

 ".xserted, finally pierced witli a wide, funnel-shaped opening. Asci 

 slender-clavate or cylindrical, long-stipitate, very delicate, 8-spored. 

 120-140 (p. sp.) x!6 fjL. Sporidia subbiseriate, allantoid, smoky-hya- 

 line, 24-32 x 6-8 //. 



On birch bark, Carolina (Schw,), on Ilex opaca and Amorplm 

 fruticosa, South Carolina (Berk, in Grey.). 



The conidial stroma ta are depressed-conical, furrowed and sulcate 

 above. Conidia sessile, filiform-cylindrical, curved, yellow, 30-40 p. 

 long. Sec. Cke. (Valsei IL S. Xo. 52). it is rloulttful whether the Car- 

 olina specc. belong to this specie-. 



V. dolosa, (Fr,) 



Sphtzria dolosa, Fr. S. M, II, p. 405. 

 Valsa dolosa, Nitschke PJT. Germ. p. 200. 



Stromata gregarious, often crowded and subconflueht at bas<- 

 tolerably large, (1 J-2 mm. broad), strongly convex, closely covered by 

 the epidermis which is slightly fissured or subentire. Perithecia 6-1 2 

 (rarely only 3-4) in a stroma, rather large, subcircinate or irregularly 

 61 



