290 
slightly raised; sporules arcuate-fusoid or sigmoid, 3-6 (mostly 
5-) septate, sometimes distinctly, but for the most part only 
slightly constricted at the septa, 35-52 long, 4144-5 % thick in 
the middle, tapering to each end, often bent in the form of the 
letter S. 
Comes near SS. efigeios Thum. but has sporules more strongly 
curved, broader and tapering to each end. 
SEPTORIA MyricakE E. & E. 
On leaves of Myrica Newfield, N. J., Sept., 1895. 
Hypophyllous. Spots rusty-brown, 3-6 mm. diam., often 1n- 
terruptedly confluent over the entire leaf, giving it a mottled ap- 
pearance ; spots sometimes subconcentrically marked ; perithecia 
subcuticular, then erumpent, black, conical, with a broad opening 
at the apex; sporules bacillary, hyaline, continuous, 8-IOoXI 4+. 
MELANCONIEAE. 
MELANCONIUM ARUNDINACEUM E. & E. 
On dead canes of Avundinaria, St. Martinville, La., March, 
1896. (Langlois, no. 2444.) 
Acervuli gregarious, elliptical, 1-1343/-1 mm, lenticular, 
covered by the lead-colored epidermis, which finally splits along 
the middle; conidia globose, 15-20» diam., or elliptical, 18-22X 
13-16; basidia inconspicuous, shorter than the spores. 
Differs from JM. hysterinum Sacc. in its larger acervuli, and 
mostly obovate-elliptical conidia and inconspicuous basidia. 
Myxosporium Corni E. & E. 
On bark of dead Cornus florida, near Mich. Ag. College, Jan., 
1892. (G. H. Hicks, no. 154.) 
Acervuli subcuticular, convex-discoid, slate-color within, 1-1% 
mm. diam., slightly raising and splitting the epidermis; sporules 
oblong, hyaline, 2-nucleate, 6-83», expelled in a flesh-colored 
globule. 
M. nitida B. & C., has acervuli and sporules smaller. 
GLorosporium SENECIONIS E. & E. 
On leaves of Senecio aronicoides, Wawona, Calif., June, 1895. 
(Davis, no. 9513.) : 
Spots orbicular, 5-10 mm. diam., often confluent over the 
greater part of the leaf, mostly darker around the margin but be- 
coming a uniform light yellow; acervuli more abundant below, 
