481 



Asci clavate, 50-55x7-8 ;!. Sporidia subbisei-iate, allantoid, color- 

 less, 10-13x2-21 ;^. 



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



The pustules are often arranged in rows and the disk becomes 

 darker 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 p) and the absence of any gray pulverulent disk. The two 

 are doubtfully distinct 



V. dissepta, Fr. Summa Veg. Sc. p. 411. 



Sphcsria dissepta, Fr, S. M. II, p. 392, 



Sphceria stipattt, Curr. in Ivinu. Trans. XXII, p. 274, fig, 197. 

 Dialrype siipata. Berk. & Br. Ann. & Mag. Nat. Hist. Ser. Ill, vol. VII, p. 452. 

 Valsa hypodermia, B. & Br. 1. c. III, p. 368. 

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

 Exsicc. Rehm Asc. 49. — Cke. F. Brit. 2d. Ser. 230. — Plowr. Sph. Brit, 44.— Rouni. F. G. 

 1476.— Sydow, M. March. 1718.— Rab. F. E. 320. 



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

 across and 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 

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

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

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

 exserted, finally pierced with a wide, funnel-shaped opening. Asci 

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

 120-140 (p. sp.) xl6 //. Sporidia subbiseriate, allantoid, smoky-hya- 

 line, 24-82 X 6-8 IX. 



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

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



The conidial stromata are depressed-conical, furrowed and sulcate 

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

 long. Sec. Cke. (Valsei U. S. No. 52), it is doubtful whether the Car- 

 olina specc. belong to this species. 



V. dolosa, (Fr.) 



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

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



Stromata gregarious, often crowded and subconfluent at base, 



tolerably large, (I5-2 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 irrogulai'l3- 



61 



