LITERATURE CITED
- Abbott SP, Currah RS. 1997. The Helvellaceae: systematic revision and occurrence in northern and northwestern North America. Mycotaxon 62:1–125.
- Arthur JC. 1934. Manual of rusts in United States and Canada. Lafayette, Indiana: Purdue Research Foundation. 438 p.
- ———. 1962. Manual of rusts in United States and Canada. Reprint. New York: Hafner. 438 p.
- Cummins GB. 1930. Montana discomycetes from Flathead National Forest. Pap Mich Acad Sci 11:105–115.
- ———. 1935. The morphology of rust spores with special reference to the number and arrangement of germ pores [Doctoral dissertation]. Lafayette, Indiana: Purdue Univ Press. 42 p.
- ———. 1947. Some problems in mycological taxonomy. Mycologia 39:627–634.
- ———. 1959. Illustrated genera of rust fungi. Minneapolis: Burgess Publishing Co. 131 p.
- ———. 1962. Supplement to Arthur’s manual of the rusts in United States and Canada. New York: Hafner.
- ———. 1971. Rust fungi of cereals, grasses and bamboos. Berlin: Springer-Verlag. 570 p.
- ———. 1978. Rust fungi on legumes and composites. Tucson, Arizona: Univ Arizona Press. 424 p.
- ———, Hiratsuka Y. 1983. Illustrated genera of rust fungi. St Paul, Minnesota: APS Press. 152 p.
- ———, ———. 2003. Illustrated genera of rust Fungi. 2nd ed. St Paul, Minnesota: American Phytopathological Society. 225 p.
- ———, Stevenson JA. 1956. A checklist of North American rust fungi (Uredinales). Plant Dis Rep Suppl 240:109–193.