Davis—Notes on Parasitic Fungi in Wisconsin — VIII. 429 
On suborbicular to angular areas which become reddish brown 
above, darker and finally granulose below; conidiophores hypo- 
phyllous, brown, subdecumbent to erect, bent or more tortuous 
and more or less torulose, sometimes branched, occasionally sep¬ 
tate, 50-100 x 3/a ; conidia hyaline, obclavate to flagelliform, more 
or less curved, becoming septate, 65-135 x 3/a. On leaves of 
Spiraea salicifolia. Nekoosa, Wisconsin, July 25, 1919. Micros¬ 
copically the conidial masses are grey. In the provisional list a 
specimen on Spiraea salicifolia was doubtfully referred to Cer- 
cospora rubigo Cke. & Hark. This specimen was collected at 
Spooner July 20, 1911, and in the packet I find the following de¬ 
scription: Spots angular to suborbicular, limited by the vein- 
lets, reddish brown, 5—8 mm. in diameter; conidiophores hypophyl- 
lous, fuligineous, assurgent to erect, often arising as branches 
from a superficial creeping mycelium, sometimes branched, usually 
crooked and denticulate or nodulose, 25-60 x3/a; conidia hyaline, 
attenuate from about 10/a above the base where the diameter is 
greatest, straight or more often somewhat curved, pluriguttulate, 
50-125 x 3-4/a. 
Cercospora medicaginis Ell. & Evht. 
On Medicago lupulina. Madison (F. R. Jones). The type of 
this species was probably immature as the mature conidia become 
flagelliform and 100-165/a in length. 
Cercospora flagellifera Atk. ? 
Of what is perhaps a northern form of this species the follow¬ 
ing notes were made: Spots few, scattered, definite, angular, dark 
reddish brown above, lighter brown below, 2-5 mm. long; conidio¬ 
phores amphigenous, fuscous, closely fasciculate, usually straight, 
simple, continuous, 17-40 x 3/a ; conidia hyaline, obclavate, straight 
or somewhat curved, septate, 55-80 x 3-4/a. On leaves of Lespedeza 
capitata. Saxon, July 25, 1919. Nekoosa, July 17 and 19, 1919. 
Cercospora gaultheriae Ell. & Evht. 
On Gaultheria procumbens. Millston. 
Cercospora tuberculella n. sp. 
On small, angular, somewhat paler areas, limited by the vein- 
lets, which finally become black; conidiophores hypophyllous, fas¬ 
ciculate from scattered, black substomatal pseudo stromata, fuligen- 
ous, straight to subundulate, simple, sometimes with a single sep¬ 
tum, 20-50 x 4—6/a ; conidia dilute fuligenous, cylindrical to obcla- 
vate-cylindrical or occasionally fusoid-cylindrical, obtuse, usually 
straight, becoming 1--3- septate, 30jf-60 x dr-fi/^. On leaves of 
Convolvulus sepium. Madison, Wisconsin, September 16, 1919. 
This collection is peculiar because of the very abundant, much 
