Index Fungorum Chlorociboria aeruginascens (Nyl.) Kanouse
MycoBank Chlorociboria aeruginascens (Nyl.) Kanouse
Green Elf or Green Wooden Cup.
Rarely can a fungus be observed without the formation of fruiting bodies, but Green Elfcup (Chlorociboria aeruginascens) quite allows this. Colonizing dead wood, this fungus stains it in delicate blue-green tones. The pigment xylindein is responsible for this. Such wood, the so-called "green oak," was used by Italian Renaissance craftsmen for inlays and mosaics.
Aerūginascens (mycol.) becoming blue-green. From aerugo, inis, f, copper rust, blue-green + Part. praes. act. of nāscor, nātus sum, nāscī 1- to be born, to originate
Chlorociboria aeruginascens subsp. australis P.R. Johnst., in Johnston & Park, N.Z. Jl Bot. 43(3): 684 (2005)
Chlorociboria aeruginascens subsp. brasiliensis (Berk. & Cooke) J.R. Dixon, Mycotaxon 1(3): 213 (1975)
Chlorosplenium aeruginascens (Nyl.) P. Karst., Bidr. Känn. Finl. Nat. Folk 19: 103 (1871)
Chlorosplenium aeruginosum var. aeruginascens (Nyl.) P. Karst., Not. Sällsk. Fauna et Fl. Fenn. Förh., Ny Ser. 11: 233 (1870) [1871]
Chlorosplenium brasiliense Berk. & Cooke, J. Linn. Soc., Bot. 15: 397 (1876) [1877]
Helotium aeruginascens (Nyl.) J. Schröt., in Cohn, Krypt.-Fl. Schlesien (Breslau) 3.1(1–8): 83 (1885) [1889]
Peziza aeruginascens Nyl., Not. Sällsk. Fauna et Fl. Fenn. Förh., Ny Ser. 10: 42 (1868) [1869]
About 0.5–2 cm in height, cup-shaped when young, later resembling "ears" with an eccentric stem, often with an uneven wavy margin; surface smooth, blue-green, turquoise.
Hymenium: The upper spore-bearing (inner) surface is smooth, bright turquoise, darkening with age.
Stem: Short, 0.5–1.5 mm, rough, with a whitish bloom.
Thin, turquoise. Odor weak, indistinct.
Spore print white. Spores from nearly cylindrical to fusiform, smooth, with an oil droplet at both ends.
Saprotroph. Grows on dead wood of deciduous trees.
Blue-green Chlorociboria (Chlorociboria aeruginosa) — fruiting bodies are saucer-shaped, on a central stem. Has longer spores.
The pigment xylindein is currently being actively researched both in biology—as this pigment exhibits, for example, algicidal activity—and in electronics, where researchers are studying the semiconductor properties of materials derived from this pigment.
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