Fabulous Fungi ~ Caesar's Mushroom (Amanita caesarea) ~ By Monika Belková. Once this beautiful mushroom fully erupts the cap will open and 'blush' on the top to an orange/red usually.the gills will be yellow as will the stem/skirt.
Nidula is a genus of fungi in the family Agaricaceae. Their fruit bodies resemble tiny egg-filled birds' nests, from which they derive their common name "bird's nest fungi". Originally described in 1902 (Wikipedia)