132 FIELD COLUMBIAN MUSEUM BOTANY, VOL. i. 



ASTERINA Lev. 

 A. Leemingii E. & E. 



On Galax aphylla, May 4, 1894 (Nuttall, 1493, 475). 



DIMEROSPORIUM Fckl. 

 D. Galactis E. & E. 



On leaves of Galax aphylla in conjunction with the last species 

 above, May 4, 1894 (Nuttall, 1576, 475). 



D. Collinsii (Schw.) Thum. 



On leaves Amalanchier Canadensis, Glade Creek, May 4, 1894. 

 (Nuttall, 1490, 472). 



SCORIAS Fries. 



S. spongiosa(Schw.) Fr. 



On living Fagus atropunicea, at Rupert's July 26, 1894. Spores 

 1 6 to 1 8 x 5 ij. (Nuttall, 1634). 



VALSA Fries. 

 V. ceratophora Tul. 



On fire killed Hicoria minima, Oct. 17, 1894. On Acer sdcchar- 

 inum, L. Asci 38 x 5 //, spores 7.5 to 10 x 1.5 to 1.75 // (Nuttall, 

 1711). 



V. Diospyri E. & E. Proc. Phil., Acad., 340 (1894). 



TYPE HABITAT: On dead limbs Diospyros Virginiana, Dec. 10, 1893. 

 (Nuttall, discov. 1308, 253). 



Stroma consisting of the slightly blackened substance of the 

 bark, convex, about 2 mm. diameter, not circumscribed. Perithecia 

 4 to 10 in a stroma, subglobose,. 25 to .33 mm. diameter, necks con- 

 verging and united above in a small, black disk which perforates the 

 pustuliform-elevated epidermis, but does not rise above it. Ostiola 

 short, conic-cylindrical, with a smooth, round opening crowded and 

 finally obliterating the disk. Asciclavate-lanceolate, p. sp. 25 x 5 ., 

 8-spored, paraphysate. Sporidia allantoid, hyaline, 8 to 10 x 1.5 

 to 2 ;JL. Spermogonia (Cytispora), stroma multilocular gray inside, 

 opening by a single, central pore. Spermatia allantoid, hyalins, 

 moderately curved, 4 to 5 x 1.25 /z. 



V- etherialis E. & E. Proc. Phila. Acad., 341 (1894). 



TYPE HABITAT: On dead limbs of Acer rubrum, Feb. 1894 (Nutt- 

 all, discov. 1304, 373). 



Stromata cortical, thickly scattered, convex i to 1.5 mm. diame- 

 ter. Perithecia 6 to 12 together, circinate, buried in the unaltered 

 substance of the bark, small, 150 to 250 /z diameter their short necks 

 terminating in an erumpent, compact fascicle of obtuse, black, 

 slightly umbilicate ostiola closely embraced by the epidermis and 

 scarcely rising above it. Asci (p. sp.) fusoid, 1510 22 x 4 to 4. 5/>-, 

 stipitate, 8-spored. Sporidia biseriate, allantoid, hyaline, curved, 

 slender, 5 to 6 x about i //. When well developed, the epider- 



