Two images. This is Mycena roseoflava, could the database be update to include this species. The small pink caps can cover large areas on logs in wet forest. You might see a yellowish base to the stipes (stems) of some which is a clue to identification.
See second image for the multicolour inside of this common fungus. I believe this genus is under review and the species generally found in this district is currently attributed to P. albus regardless of the colour of the outer sack.
Observed and photographed by Adam Merrick. Published with permission. Exotic large spiny shrub, naturalised on the Hamilton-Digby Road on the Volcanic Plains. Leaves borne in fascicules along the spiny side of branches. Fruit 6-8mm in diameter, bright orange.