Delicatula integrella 

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Delicatula integrella (Pers.) Fayod 1889

This tiny, delicate, flowery-looking mushroom is a saprotrophic fungus that digests and absorbs the nutrients in moss-covered dead wood of broadleaf trees. It has a near-translucent white cap and white widely-spaced gills with cross-veining. The stem is white and ends in a boulbous base.  Its spore print is white.  It may be relatively rare. In any case, it is rarely recorded, perhaps due to its small size. It is in the Tricholomataceae family of the Agaricales order.