Uncommon in rank grassland under birch (Betula pendula) tree's along roadside (seen also in mixed birch / kohuhu (Pittosporum colensoi) / kapuka (Griselinia littoralis) forest nearby. Thallus dirty dark brown to yellow-brown(distinctly more yellow on margins and underside of thallus near gills otherwise brown), virtually immersed in ground (so appearing like an earthball / [puff ball), near roots of assumed host tree (birch). Cap up to 40 mm diameter, 'bun-shaped' with central depression scarcely evident, surface finely rugose. Gills white. Stalk tapering to apex, most immersed in leaf litter and soil, dirty yellow-brown, 20 mm diameter at base, narrowing to 15 mm diameter near apex. Probably the same species as http://naturewatch.org.nz/observations/3001031