¥YUNGI. 165 
Order PE RISPORIALES. 
Family ERYSIBACEAE. 
SPHAEROTHECA Liv. 
Sphaerotheca castagnei Lév. 
Ala, Bull. 180. Cornell Bull. 4. 
On Bidens frondosa. Lee County, Auburn, October, 1889 (Atkinson) ; November. 
1891 (Duggar). 
a ae of Erechtites hieracifolia. Lee County, November 5, 1891 (Benton J 
uggar). 
On Lactuca sp. Lee County, October, 1896 (Harle). 
Ohio, New Jersey. Europe. 
Sphaerotheca humuli (DC.) Burrill. 
Corne)l Bull. 4. 
On Humulus, the hop. Lee County, Auburn, autumn, 1889 (Atkinson). 
Sphaerotheca lanestris Hark. 
Ala. Bull. 180. Cornell Bull. 4. 
On leaves of Quercus alba. Lee County, Auburn, August 21, December, 1891 
(Atkinson). 
Sphaerotheca pannosa (Wallr.) Lév. 
Ala, Bull. 180. 
Ona cultivated species of Rosa. Lee County, 1890 (Atkinson). 
Europe. 
PODOSPHAERA Kunze. 
, Podosphaera biuncinata C. & P. 
Ala. Bull. 179. Cornell Bull. 5. 
On leaves of Hamamelis virginiana. Lee County, October 28, 1891 (Duggar). 
Podosphaera oxyacanthae (DC.) De Bary. 
Grevillea, 4 158, us Podosphaera kunzei Lév. Aja, Bull. 180. Cornell Bull. 5. 
On Prunus cerasus (Peters). 
On Cratacgus sp. Lee County, Auburn, November, 1891 (Benton). 
On leaves of Prunus americana. Lee County, Auburn, October 31, 1891 (Duggar). 
On Malus malus, Lee County, April, 1896 (Harle). 
Europe. 
ERYSIBE Hedw. 
Brysibe cichoracearum DC. 
Ala, Bull. 176. Cornell Bull. 4. 
On Ambrosia artemisiaefolia. Lee County, May, 1890 (Atkinson). 
On Ambrosia trifida. Perry County, 1890 (Atkinson). 
On Aster lateriflorus and 4. tradescanti. Lee County, Auburn, 1891 (Atkinson). 
On Helianthus annuus. Lee County, 1891 (Duggar). 
On Willughbya scandens. Lee County, 1891 (Atkinson). 
On Phlox sp. Mobile County, 1890 (Carl Zimmer). 
On Solanum carolinense. Lee County, October, 1891 (1tkinson); Macon County, 
October, 1890 (Carver). 
On Ferbena urticaefolia. Lee County, October, 1891 (Duggar). 
On Xanthium canadense. Lee County, October, 1889 (Atkinson); Macon County, 
August, 1896 (Carver). 
Over the State, and north to Canada. 
Europe. 
Brysibe communis (Wallr.) Link. 
Ala. Bull.177. Cornell Bull, 4. 
On Onagra biennis. Lee County, May, 1890 (Atkinson). 
On Pisum sativum. Lee County, May, 1890 (Atkinson). 
On leaves of Qecnothera laciniata. Lee County, Auburn, June 3, 1890 (Atkinson). 
Europe. 
