MICHIGAN ACADEMY OF SCIENCE. 
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PHYCOMYCETES. 
Synchytriaceae. 
Synehytrium anemones (D. C.) Wor. On anemone nemorosa L. 
May, fide Spalding. 
Synehytrium decipiens Far low. On Amphicarpaea monoica Nutt. 
July, fide C. H. K. 
Synehytrium pluriannulatum B. & C. On Sanicula Marylandica L. 
July-Aug., fide Spalding. 
RMzidiaceae. 
Harpoehytrium hedenii Wille. On Spirogyra sp. fide C. H. K. 
Cladochytriaceae. 
Physoderma menyanthis DeBary. On Menyanthes trifoliata L. 
June, fide L. N. J. 
Saprolegniaceae. 
Achlya polyandra Hildb. From Cladophora, Huron River. Nov., 
fide C. H. K. 
Achlya prolifera (Nees ab E.) DeBary. With mosses, in ditch, 
Chelsea. Nov., fide C. H. K. 
Aehlya Treleaseana (Humphrey). Among Cladophora, Huron river. 
Nov. The sporanges emptied in the manner of Achlya; in every 
other respect it agreed with Saprolegnia Treleaseana Humphrey, 
and is no doubt the same plant. Only one sporange had been 
seen by Humphrey, fide C. H. K. 
Aphanomyces laevis DeBary. With Oedogenium collected near Ann 
Arbor, fide C. H. K. 
Saprolegnia hypogyna Pringsh. Among water plants, Cedar Lake, 
Nov., fide C. H. K. 
Saprolegnia mixta. DeBary. With Cladophora, Huron River. Nov., 
fide C. H. K. 
Albuginaceae.. 
Cystopus bliti DeBary. On Amaranthus retrofiexus L. Mich. Agr. 
College, fide Beal. 
Cystopus candidus (P) Lev. On Brassica nigra Koch.; Capsella 
bursa-pastoris, Moench; and Dentaria diphylla L. May-Oct., fide 
Wheeler & Spalding. 
Cystopus portulacae (D. C.) Lev. On Portulaca oleracea L. Ann 
Arbor, fide Spalding. 
Cystopus tragopogonis (Pers.) Schroet. On Ambrosia artemesiae- 
folia L. fide Merrow. 
Per on o spora cea e. 
Bremia Lactucae Regd. On Lactuca leucophorum D. C. June-Aug.. 
fide Spalding. 
Peronospora alta Fkl. On Plantago major L. June-Aug., Ann 
Arbor, etc., fide Spalding. 
Peronospora corydalis DeBary. On Dicentra Canadensis D. C., 
May 12, fide Merrow. 
Peronospora effusa (Gre'v.) Rabh. On Chenopodium album L. June, 
fide Spalding. 
Peronospora Ficariae Tub On Ranunculus repens L. et R. fascicu- 
laris Muhl. Ann Arbor, May, fide Spalding. 
