268 Wisconsin Academy of Sciences, Arts, and Letters. 
Cercospora corni, n. sp. 
Spots indefinite, pale brown, becoming mottled with purple* 
especially above; conidiophores hypophyllous, scattered, erect 
or ascending, brown, septate, 25-40 x5-7y; conidia apical, ob- 
clavate, bright brown, strongly pluriseptate, 70-160 x5-7y. On 
leaves of C.ornus paniculata. St. Croix Falls, "Wisconsin, Au¬ 
gust 31st, 1914. The conidiophores sometimes spring from the 
arch of a superficial mycelium and. are then shorter. The af¬ 
fected areas which are mostly 1 cm. in diameter finally be¬ 
come dark and dotted with small, black, globular, sclerotioid bod¬ 
ies which are perhaps young pycnidia or perithecia. 
Cercospora arctostaphyli n. sp. 
Spots circular, definite, sordid-arid with a narrow purple bor¬ 
der, sometimes confluent, 2-5 mm.; conidiophores epiphyllous, 
springing mostly from small, dark tubercles, subhyaline, straight,, 
erect, 7-15 x 3y; conidia straight or slightly curved, acute, 
30-50 x 1-1 y 2 /i. On Arctostaphylos Uva-ursi. Millston, Wis¬ 
consin, June, 1914. 
Cercospora echinocystis Ell. & Mart. On Echinocystis lobata 
and Sicyos angulatus. Maiden Rock. In these specimens the 
conidiophores are scattered rather than fasciculate. Conidia up 
to 185 x 4y were measured. 
Cercospora effusa (B. & C.) Ell. & Evht. (?). On Lobelia 
siphilitica. Alma. In this collection the lax, nodulose, tortuous, 
septate conidiophores are 75-150y long; the conidia 30-45y long, 
triseptate, becoming brown and constricted at the septa when, 
old. Cladosporium effusum B. & C. was said to occur on Poly¬ 
gonum punctatum, Lobelia puberula and L. siphilitica and Nab- 
alus altissimus but Berkeley stated that he had seen conidia only 
on Polygpnum and that they are curved which is not true of the 
fungus referred to here. On Fungi Columbiani 2505 (on Lob¬ 
elia in flat a) I find conidia like those in the Wisconsin collection 
and also a few slender obclavate ones nearly 100,u long. That, 
the latter were borne on the conidiophores I cannot say. The 
Fungi Columbiani specimen examined appears to bear a parasite 
producing small rod-like sporules in pycnidia. The conidio¬ 
phores of the Wisconsin collection give off a few branches at or 
near a right angle. 
