Daylily Rust Information Page
Reported1 Hosts of Puccinia hemerocallidis in its Native
These hosta species have also been listed as hosts of the uredial/telial stage of daylily rust, but rust on hostas in Japan has since been demonstrated as Puccinia funkiae, not Puccinia hemerocallidis. Please see the note below.
It should be noted that, at least in the case of hosts listed in the Rust Flora of Japan, the information is compiled from published papers and not necessarily confirmed by specimen-based studies or inoculation experiments. Experimental attempts to infect hosta with daylily rust in North America have so far been unsuccessful. Dr. Y. Ono in Japan has also been unable to infect several species of hosta with either aeciospores from Patrinia, or urediospores from daylily6, and has since confirmed experimentally that the rust observed on Hosta in Japan is a different species, Puccinia funkiae, although both rusts share Patrinia villosa as alternate host 7.
1 Unless marked otherwise, all plants are listed as hosts of P. hemerocallidis in Japan by Hiratsuka, N., Sato, T., Katsuya, K., Kakishima, M., Hiratsuka, Y., Kaneko, S., Ono, Y., Sato, S., Harada, Y., Hiratsuka, T., and Nakayama, K. 1992. The Rust Flora of Japan. Tsukuba Shuppankai, Ibaraki, Japan. Pages 710-711.
2 Mentioned as a host other than in Japan by Hiratsuka, N., Sato, T., Katsuya, K., Kakishima, M., Hiratsuka, Y., Kaneko, S., Ono, Y., Sato, S., Harada, Y., Hiratsuka, T., and Nakayama, K. 1992. The Rust Flora of Japan. Tsukuba Shuppankai, Ibaraki, Japan. Pages 710-711.
3 Zhou Maofan, Bao Difu, Zhao Chunsen et al. (editors). 1998. Atlas of Diseases and Pests of Medicinal Plants in China. Hubei Scientific and Technological Press. Wuhan, Hubei, China. pages 198-199.
4 Azbukina, Z. M., Nauka, Moscow. 1984. Key to the rust fungi of the Soviet Far East.
5 Farr, D.F., Rossman, A.Y., Palm, M.E., & McCray, E.B. (n.d.) Fungal Databases, Systematic Botany & Mycology Laboratory, ARS, USDA. Retrieved 2003, from http://nt.ars-grin.gov
6 Ono, Y. 2003. Does Puccinia hemerocallidis regularly host-alternate between Hemerocallis and Patrinia plants in Japan? J Gen Plant Pathol 69:240-243.
7 Ono. Y. 2005. Plantainlily rust fungus is distinct from daylily rust fungus. J Gen Plant Pathol 71:99-106.