The taxonomy for this group of fungi is not clear. It would appear that there is more than one species and so to cover this the species has 'group' after it's scientific name.
Oudemansiella gigaspora group is listed in the following regions:
Canberra & Southern Tablelands | South Coast
Synonyms
Oudmansiella radicata, Xerula radicata, X. radicata var. australis Oudemansiella 'radicata group'Maps
ANBG ANBG South Annex ANU Garran Precinct Aranda Bushland Australian National University Bicentennial Park Black Mountain Bodalla State Forest Boro Bruce Ridge Bruce Ridge to Gossan Hill Bungonia State Conservation Area Cooma North Ridge Reserve Crace Grasslands Federal Golf Course Flea Bog Flat, Bruce Gang Gang at Yass River Goulburn Mulwaree Council Gungaderra Grasslands Hall Cemetery Hughes Grassy Woodland Isaacs Ridge Isaacs Ridge and Nearby Kangaroo Valley LB Block Lake Ginninderra Lower Cotter Catchment Mongarlowe River Mount Ainslie Mount Jerrabomberra Mount Jerrabomberra QP Mount Majura Mount Painter Mount Taylor MTR591 at Gundaroo Namadgi National Park Percival Hill Pomaderris Nature Reserve Red Hill Nature Reserve Red Hill to Yarralumla Creek Sullivans Creek, Acton The Pinnacle Tidbinbilla Nature Reserve Umbagong District Park Wadbilliga National Park Wanniassa Hill Woodstock Nature ReserveSurvey points
GG44 Point 11 Point 5806 Point 5831Places
Dalmeny, NSW O'Connor, ACT Pialligo, ACT Surf Beach, NSW Uriarra Village, ACT