A rust belongingg to the genus Uromyces is rather prevalent in this latitude on the common clovers, white (Trifolium repens L.), red (Trifolium pratense L.) and alsike (Trifolium hybridum L.). The rusts on clovers were formerly classified as a single species or one rust until the work of Liro separated them into two species, one on red and one on white clover. The disposition of the rust on alsike clover is not clear.
Proceedings of the Iowa Academy of Science
©1917 Iowa Academy of Science, Inc.
Davis, W. H.
"The Aecial Stage of Alsike Clover Rust,"
Proceedings of the Iowa Academy of Science, 24(1), 461-475.
Available at: https://scholarworks.uni.edu/pias/vol24/iss1/65