Tanaka) Lindau (1895) Helicobasidium mompa is a species of fungus in the subdivision Pucciniomycotina.

[2][3] Helicobasidium mompa was first described in 1891 by Japanese mycologist Nobujiro Tanaka for a species found on mulberry in Japan that was similar to the European Helicobasidium purpureum, but with basidiospores depicted as ovoid and of slightly smaller size.

[3] A 1999 study considered H. mompa a nomen dubium (a name of unknown application) because of uncertainty concerning its description and interpretation.

[1] Initial molecular research, based on cladistic analysis of DNA sequences, indicates, however, that Japanese and Korean specimens determined as H. mompa form a grouping distinct from those named Helicobasidium longisporum or H.

Microscopically the hyphae are easily visible, 5-8 μm diam., brownish-purple, and lack clamp connections.