Puccinia rhei-undulati (Dietel) Hiratsuka, 1935
Fungi, Basidiomycota. Pucciniomycetes, Pucciniales, Pucciniaceae
no host plant alternation, only uredinia and (very rarely) telia. Uredinia mainly hypophyllous, also on the petioles, on yellow spots, orbilculate, ferruginous, pulverulent. Spores on average 22 x 29 µm, with 3-4 conspicuous equatorial germination pores.
Rheum rhabarabarum, rhaponticum.
Uredo rhei-undulati Dietel, 1906.
the species is described from Japan, and is not treated by Gäumann, but it is included in the compilation by Brandenburger (as Uredo r.-u.).
Brandenburger (1985a: 88), Cunningham (1945a).