This species is characterized by its odontioid basidiome growing on decayed wood of Nothofagus betuloides and Drymis winteri. Microscopically in characterized by two types of cystidia (capitate with resinous cap and leptocystidia) and thick walled spores.
This species, as far as it is known, is a corticioid fungi with a very narrow geographical distribution. It has been recorded in only one locality in Tierra del Fuego Island, even though the island has been surveyed extensively.
B1 VU: this criterium applies because it has been recorded in only one locality in Tierra del Fuego . Forest that potentially can harbor this species (Nothofagus betuloides) occupy <5000 km2, but the actual surface of forest suitable for this species is much less since it has been recorded in very humid and pristine forests of mixed Nothofagus betuloides-Drymis winteri forets that are restricted to the southern area of the island.
B2 EN: this criterium applies because it known occupancy area is < 500 km2, and in only one locality (B2a).
A3 C VU: Human impacts in the area, especially tourism, are expected to increase in the future.
Recorded in only one locality: Estancia Moat, Ushuaia, Tierra del Fuego, Argentina. Although extensively surveyed, this species was not found in other Nothofagus forests of Tierra del Fuego island.
Not found neither in continental pure or mixed Nothofagus forests (Chubut and Rio Negro).
Population Trend: unknown. The species is known from less than 10 specimens and has been recorded in only one locality.
Population Trend: Uncertain
Growing on Nothofagus betuloides and Drymis winterin in pristine and humid Nothofagus Subantarctic Forest.
Human disturbance in the extremely restricted distributional area of this species.
Habitat protection in the distributional area.
Geographic distribution and abundance needs to be assessed to know the actual distribution. Knowledge on factors affecting its limited distribution will be very valuable.
Greslebin, A. G. y M. Rajchenberg. 2000. The genus Hyphodontia in the Patagonian Andes forests of Argentina. Mycologia 92: 1155-1165.