Common in this forest over the last 4-6 weeks. With my limited fungi field skills I don't know what the species is. Looks close to Amanita ochrophylloides. Fruiting body c. 120mm diameter in this case, but many are larger.
Despite the enormous flush of annual grasses this year after all the rain, this poor single Dipodium lives to fight another year - this time sending up 1.5 flower spikes. I haven't found any other specimens in this forest/woodland patch yet. It's survival prospects here are tenuous at best.