Ustilago spinificis F. Ludw., Z. PflKrankh. 3: 138 (1893)

Synonymy:
Cintractia spinificis (F. Ludw.) McAlpine, Smuts of Australia: 174 (1910)

Position in classification:
Ustilago, Ustilaginaceae, Ustilaginales, Ustilaginomycetidae, Ustilaginomycetes, Basidiomycota, Fungi

Note:
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