Periza nivea. Deh. f.1. On the under side of an old decaying stem of Fungi in the wood above the Ochmid at Derrigun 7 April 1839. Cup stipitate, cup as wide as the stem. Stem white, shaggy with white transparent broad lacinia. Cup very concave, lacinated at the mouth; stalk a stem a little larger than the diameter of the cup. Stem narrowed at the very base: cup turning very slightly down at the orifice with age. Spirea filiform, articulations scarcely discernible, lining in a compact manner the inside of the cup. On investing a cup in the field of the microscope a number of sporules drifted out. These were minute, yet some much wider than others, and be wing round, while the fertile part were narrow and elliptical. In Tomahawk figure, the plants are 4 times as large, and the "cells" same thick, beside, the cup from gradually paler away into the stem.