86 Wisconsin Academy of Sciences, Arts, and Letters. 
tortion of the hosts, even when the sori were numerous and ag¬ 
gregated, the pressure being into the mesophyl which was some¬ 
times torn from the epidermis in the area surrounding the gall. 
The common factors which make for susceptibility in these 
various hosts are not apparent to me. 
Septoria astericola Ell. & Evht. on Aster puniceus. In the 
specimen on this host the spots become lead color with a dark 
border. The largest spots are 1 cm. long. The pycnidia are 
epiphyllous, about 80/a in diameter and the sporules 23-33 x 1/a. 
Collected at Lake Mills, Oct. 19, 1912. 
Gloeosporium saccharinum, Ell. & Evht. Specimens on Acer 
spicatum collected at Spooner have circular spots of a pale olive 
color with a darker border; the largest sporules are 7x3/a. The 
fungus often developes on subcircular spots of a tan color on 
Acer Saccharum. 
Cercospora caricina Ell. & Dearn. My notes of a specimen on 
Cyperus filiculmis collected at Madison, Aug. 12, 1912, are as fol¬ 
lows: Hyphae 3-8 in a tuft, brown, somewhat nodulose, often 
denticulate at the apex, 50-80x3-4y; conidia hyaline, obclavate- 
cylindrical, straight or curved, becoming pluriseptate, 65-lQ0x 
3- 4/a. On bracts and culms, spreading from above downward. 
Cercospora caricina Ell. & Dearn. is described as having hyphae 
15-25 x 3-3 %/a and conidia 34-73 x 3/a, but I have specimens on 
Carex in which the hyphae and conidia equal those noted on 
Cyperus. Vyperus Houghtonii which was tentatively given as a 
host in the 4th suppl. list should not have been omitted from the 
provisional list. 
Cercospora ceanothi Kell. & Swingle. On Ceanothus ameri- 
canus. Madison. In one of the collections on this host the fungus 
is particularly well developed, the conidiophores being 20-45x 
4- 5/a and the attenuate conidia 80-150 x 4-6/a. A collection made 
in the same locality two weeks later agrees with the description 
of Cercospora fuliginosa, E. &. E. the conidia being darker, 
cylindrical and 30-80 long. It is probable, therefore, that the 
descriptions of C. ceanothi Kell. & Swingle and C. fuliginosa Ell. 
& Evht. were drawn from different states of the same fungus. 
The former is the prior name and the latter is antedated by C. 
fuliginosa Ell. & Kell, on Diospyros (1887) for which reason C. 
MacClatehieana Sace. & Syd. was substituted. 
