All known specimens of this species appear to be preserved. Although this species was initially described from Borneo, Malaysia, whether or not this species exists in a wild population at this locality to this date is unknown, and therefore the current wild population trends of this species remain unknown. If any wild populations do exist at this locality, it is reasonable to assume that they would be threatened by deforestation for palm oil harvesting, however further information is required to confirm this. This species is thought to have occurred throughout several prefectures of Japan, however all specimens of these occurrences appear to now be preserved. Due to a deficiency in information regarding this species’ wild distribution, as well as uncertainty as to the extent to which this species is threatened, it is currently listed as DD until further research is carried out.
Why suggested for a Global Red List Assessment?
This species was initially described as growing within Borneo, Malaysia (Corner, Nova Hedwigia 27: 325 (1976)). A preserved specimen of this species from Indonesia appears to be maintained by the Royal Botanic Garden Edinburgh Herbarium alongside 2 specimens from Malaysia. 9 further preserved specimens are accompanied by geographical coordinates, placing them in the Kanagawa, Ibaraki, and Ishikawa prefectures of Japan. These 9 specimens are preserved, recorded by the Fungal Specimens of National Museum of Nature and Science (National Museum of Nature and Science, Japan) and by the Fungi specimen database of Kanagawa Prefectural Museum of Natural History (information provided by gbif, citation needed).
Population and Trends
It is currently not possible to assess the population trends of this species without further research, due to a deficiency in geographic information on wild populations of this species.
Population Trend: Uncertain
Habitat and Ecology
The type of this species, from Malaysian Borneo, was observed growing on rotting wood (Corner, Nova Hedwigia 27: 325 (1976)) but has also been reported within the Pasoh Forest Reserve (Eyssartier et al 2009).
Subtropical/Tropical Moist Lowland Forest
All known specimens of this species appear to be preserved, however if a wild population is present within Borneo, Malaysia, it is reasonable to assume that it is under threat of deforestation for palm oil harvesting.
Because the status of the wild populations of this species is unknown, no conservation action can be recommended without further research thereinto.
Further research into the localities of wild populations of this species in order to accurately assess its population trends and potential threats for classification.