102 Wisconsin Academy of Sciences, Arts, and Letters . 
sporules 8-10 x 2^-3/x. The pyenidia are epiphyllous on spots 
1-2 cm. long which are sordid-arid with a purple border above, 
olivaceous below. I use this name for convenience until the re¬ 
lationship of the fungus to the various species that have been 
described on Caprifoliaceae is known. 
Ascochyta caulicola Laubert ( Ascochyta lethalis Ell. & Barth.) 
On living stems of Melilotus alba. Madison (A. H. Gilbert). 
Stagonospora paludosa (Sacc. & Speg.) Sacc. On Carex re - 
trorsa . Athelstane. 
Septoria betulicola Pk. The common Septoria on Betula in 
Wisconsin, first manifests itself by the formation of small 
(l-2mm.) scattered, angular, intervenular, black brown spots 
which are lighter colored below. These spots become surrounded 
by an indefinite yellow discoloration which later becomes of a 
more or less reddish brown above and light brown or buff below. 
These run together into indefinite areas usually 1-2 cm. in di¬ 
ameter. On the lower surface of these areas the usually few and 
scattered pyenidia are borne. These are subepidermal, globose, 
thick-walled, about 100/* in diameter. The sporules are straight 
to strongly curved, spuriously pluriseptate, 40-60x11/2-2/*. 
This is the form that is usually distributed under the name Sep¬ 
toria betulicola Pk. although North American Fungi 2nd series, 
2166 which resembles it was issued as Septoria betulae (Lib.). 
Other specimens show smaller (ca. 5mm.) darker, more defi¬ 
nitely limited areas which become cinereous above. Septoria 
betulicola apparently has not been reported in any of the Wis¬ 
consin lists. The characters of the sporules seem to ally this 
with Septoria betulina Pass. Septoria betulae (Lib.) West, 
was reported in the supplementary list 402a. The specimen 
upon which this record was based (Three Lakes, June 25th, 
1892) bears circular light yellowish brown spots 1-2 mm. in di¬ 
ameter with a definite dark brown border. The pyenidia are 
epiphyllous but visible below, globose, thick-walled, about 80^ in 
diameter; the sporules straight or curved, triseptate, 30-40x2/* 
Fungi Columbiani 1586 on Betula Occidentalis, collected in Ore¬ 
gon and issued as Septoria betulicola Pk. seems to differ from 
this only in the more irregular spots and the much paler and less 
distinct border. 
