The reliable features to recognize G. orbiforme are its rigid basidiocarp with a weakly to strongly laccate, partly laccate or dull pileus, variably brown context, ellipsoid to ovoid basidiospores with fine and short echinulae, and purplish brown pore surface at maturity (Wang et al. 2014). Is is possible that the South American specimens represent G. fornicatum, while the Asian specimens represent the true G. orbiforme (Wang et al. 2014).
Why suggested for a Global Red List Assessment?
The species in known in 4 countries. However, Wang et al. (2014) report this species in several other countries.
Population and Trends
There are about 326 records of this species in GBIF, most of them in New Zealand. However, the South American specimens may represent G. fornicatum.
Population Trend: Uncertain
Habitat and Ecology
In Brazil, the species is found only in Atlantic Forest. with few records in the Amazon Forest.
Subtropical/Tropical Moist Lowland Forest
In Brazil, this species is not well distributed, with most reports in Atlantic Rain Forest, a hotspot.
Housing & urban areasAgro-industry farmingSmall-holder plantationsAgro-industry plantationsRoads & railroadsUnintentional effects (species being assessed is not the target)Unintentional effects: subsistence/small scale (species being assessed is not the target) [harvest]Unintentional effects: large scale (species being assessed is not the target) [harvest]Increase in fire frequency/intensityHabitat shifting & alteration
Some records in Brazil are in unprotected areas.
Resource & habitat protectionSite/area managementHabitat & natural process restoration
Other areas should be studied in order to assess the distribution of this species. Taxonomical studies are also needed to better delimit this taxon.
TaxonomyPopulation size, distribution & trendsArea-based Management PlanPopulation trendsHabitat trends