MYCOLOGIA 
VoL. V March, 1913 No. 2 
STUDIES IN NORTH AMERICAN HYPHO- 
MYCETES— II^ 
LH>K^ 
NEW Y 
eOTAN 
QAKI) 
The Tribe Oosporeae 
David Ross Sumstine 
(With Plates 82-84 Containing 28 Figures) 
Lindau^ includes in the tribe Oosporeae thirteen genera, as fol- 
lows : Sporendonema, Malbranchea, Glycophila, Oospora, M onilia, 
Oidium, Paepalopsis, Halobyssus, Fiisidium, Cylindriuni, Poly- 
scytalum, Geotrichum^ Helicocephalum. 
The plants are small, inconspicuous, and parasitic or sapro- 
phytic. The mycelium is generally poorly developed and differs 
very little from the sporophores. The sporophores are short, 
lax or rigid. The hyaline or bright-colored spores are produced 
in chains endogenously or exogenously. 
The genus Sporendonenia was first described by Desmazieres® 
with one species, 5". Casei. This is generally considered congeneric 
with the so-called Oospora Lactis (Fres.) Sacc., and synonymous 
with Oospora criistacea (Bull.) Sacc. Chalara mycoderma Bon. 
is also cited as a probable synonym of S'. Casei. Oudeman^ de- 
scribes a new species. S’, terrestre, and redescribes the genus. He 
transfers the type S'. Casei to the genus Torula. One species has 
' Studies in North American Hyphomycetes — I. was published in Mycologia 
3: 45-56. March, 1911. 
“ Pflanzenfamilien i^ ** ; 417. 1900. 
’Ann. Sci. Nat. I. 11: 246. 1827. 
‘Archives Neerl. 20: 419. 1885. 
[Mycologia for January, 1913 (5: 1-44) was issued January 13, 1913] 
