She found the original specimens rooting in litter in Dun Mountain, Nelson, on April 25, 1949.

The surface is dry, covered by radially arranged wrinkles or veins, neither striate nor hygrophanous.

They are somewhat distantly spaced, with between 16 and 22 gills extending fully from the stem to the edge of the cap, in addition to one to three tiers of interspersed lamelluae (short gills that do not extend fully from the stem to the cap edge).

The top portion of the stem is deep blue, the color fading towards the whitish or ochraceous base, strongly fibrillose, dry, hollow, fragile, often twisted.

The flesh is blue in the cap and the upper parts of the stem, but whitish or yellowish at the base.

The cuticle is a trichoderm observed on not weathered specimens, or a cutis with suberect to cylindrical hyphae (5–12 μm diameter), terminal cells fusoid, membrane thin-walled, not gelatinized, with blue-brownish pigment in the cytoplasm.