Exidia purpureocinerea

Exidia purpureocinerea forms purple-grey, gelatinous fruit bodies that are cushion-shaped at first, later coalescing to become irregularly effused. The surface is densely covered in small spines. The spore print is white.^[1][2]

The microscopic characters are typical of the genus Exidia. The basidia are ellipsoid, septate, 14 to 18 by 10.5 to 12 μm. The spores are weakly allantoid (sausage-shaped), 14 to 18 by 4.5 to 5.5 μm.^[2]

The original description notes that Exidia purpureocinerea is similar to E. glandulosa, but differs in its colour and denser smaller papillae (spines).^[1][3] The densely spiny, coalescing fruit bodies are typical of the genus Tremellochaete and the South African species resembles the New Zealand species Tremellochaete novozealandica.

Exidia purpureocinerea is a wood-rotting species. It is currently only known from South Africa.^[2][3]