Spiniger curiosus has only been documented in the original description of the species in 1969, under the name Paullicorticium curiosum and has not been recorded since. It represents the assexual form of another species. Mutatoderma pupulneum has been sugested but this has not yet been confirmed. Taxonomic review of this taxon is needed so the species is assessed as Data Deficient (DD).
Spiniger curiosus is a currently accepted name in Species Fungorum (2023) and only remaining specie in the genus. However, Donk (1971) concluded it was the conidial state of a Hyphoderma species, possibly Hyphoderma populneum (now Mutatoderma pupulneum).
Synonyms: Paullicorticium curiosum, Oedocephalum curiosum
Why suggested for a Global Red List Assessment?
Recorded in Siberia (Parmasto, 1969).
Population and Trends
This species has only been documented in its original description (under the name Paullicorticium curiosum). It is not possible to estimate population size.
Population Trend: Uncertain
Habitat and Ecology
Found growing on Populus tremula fallen wood.
Given that S. curiosus likely corresponds to an asexual form of another species, a review of its taxonomic placement is needed.
TaxonomyPopulation size, distribution & trendsLife history & ecology