[8] The holotype specimen was collected by Mordecai Cubitt Cooke and George Edward Massee in New Zealand in 1890.

There are fibrillose remnants of the veil near the margin, white and conspicuous particularly on young fruit bodies.

[8] The lamellae are a distinct rust to cinnamon brown, not lacunose or anastomosing, adnate or adnexed, sometimes subdecurrent and floccose with a coloured edge.

The cheilocystidia are 15–45 × 12–25 μ and are thin-walled, hyaline, clavate or lageniform with a sterile zone at the edge.

[8] Tympanella galanthina is found in New Zealand forests among leaf litter or fallen tree fern fronds, and occasionally on rotting wood.

[9] It has been found in association with Beilschmiedia tawa, Sphaeropteris medullaris, Leptospermum scoparium, Nothofagus fusca, N. menziesii, N. solandri, and with Podocarpus.