MICHIGAN ACADEMY OF SCIENCE. 
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Ranunculus septentrionalis Poir. 
Didymaria ungeri Corda. A. A., 5-4-94, Pieters, M. 
Thalictrum polygamum Muhl. 
Erysiphe polygoni DC. M. A. C., 9-8-86. 
Thalictrum purpurascens L. 
Erysiphe polygoni DC. M. A. C., 9-2-90, Beal; Park Lake, 9-2-90, Beal 
and Wheeler; Corunna, 10-1-93, Hicks. 
Delphinium spp. 
Erysiphe polygoni DC., M. A. C., Beal (three collections.) 
Paeonia officinalis L. 
Cladosporium paeoniae Pass. M. A. C., May, Wheeler. 
BERIBERIDACEiE. 
Berberis vulgaris L. 
Fumago vagans Pers. M. A. C., 7-1-91, Beal. (Also at M.) 
Podophyllum peltatum L. 
Septoria podophyllina Pk. A. A., New Baltimore, Merrow, Johnson, 
Spalding, M.; M. A. C., 7-4-92, Beal; M. A. C., 6-6-99, Wheeler; M. A. 
C., 5-6-92, Hicks; M. A. C., 6-8-12, Bessey. 
MENISPERMACEiE. 
Menispermum canadense L. 
Cercosporct menispermi E. & Holw. Battle Creek, Spalding, M. 
' Microsphaera alni Wallr. A. A., Sept. 23, Johnson, M. (M. menespermi 
Howe.) 
Ramularia contexta E. & E. A. A., Aug., 29, Spalding. ( co-type ) M. 
Sphaeropsis menispermi Pk. M. A. C., 4-11-01, Longyear; A. A., 5-24-92, 
Merrow M. 
LAURACEiE. 
Sassafras sassafras (L.) Karst. 
Diplodia sassafras Tr. & Earle. A. A., 4-7-95, Johnson, fide Ellis, M.; 
M. A. C., July, ’92, Hicks. 
Phoma sassafras E. & E. A. A., 4-1-93, Johnson, M. 
Phyllactinia corylea (Pers.) Karst. M. A. C., Nov., ’92, Hicks. 
Benzoin benzoin (L.) Coult. 
Epicoccum neglectum Desm. A. A., 9-24-94, Johnson, M. 
PAPAVERACEiE. 
Bicuculla canadensis (Goldie) Millsp. 
Peronospora corydalis DeBy. May 12, fide Merrow, M.; A. A., 5-12-84, 
Merrow, Economic Fungi Sup. A2. 
CRUCIFER7E. 
In general Plasmodiophora brassica Wor. is found on members of this family 
(Eycleshymer ’91 p. 87) and Bacterium campestre (Pammel) Smith 
is common on the cultivated plants of the family (Sackett ’05 p. 275-278.) 
Lepidium virginicum L. 
Albugo Candida (Pers.) Rouss. M. A. C., Sept., ’91, Beal. (Two col- 
lections.) 
Peronospora parasitica (Pers.) DeBy. A. A., May and June, Merrow. M 
