The family of true rusts, Uredineae, is very interesting to the mycologist and important to the agriculturist. It contains about twenty-seven genera and a multitude of species, all of which are strict parasites, living within the tissues of their hosts. Several of the species produce destructive diseases in cultivated plants; as examples note the rust of wheat, oats and other grasses (Puccinia graminis, Pers.), blackberry rust (Caeoma luminatum, Schw.), and carnation rust (Uromyces caryophyllinus [Schrank], Schroeter). Thus far all attempts to cultivate the rusts upon artificial media have failed.
Proceedings of the Iowa Academy of Sciences
©1895 Iowa Academy of Science, Inc.
Stewart, F. C. and Carver, G. W.
"Inoculation Experiments with Gymnosporangium macropus Lk.,"
Proceedings of the Iowa Academy of Science, 3(1), 162-169.
Available at: https://scholarworks.uni.edu/pias/vol3/iss1/34