This Volvariella Bombycina or "Straw Rosegill" is the first of its kind that I have seen in my hiking. The mushroom emerges from the ground in the vulva - a sac like component. As the mushroom matures, it breaks through the vulva almost like a soft egg hatching. Its cap is silky (or fuzzy) and white, the gills are free and turn pinkish as they age. This mushrooms grows on the dead stumps of trees.