Mycena roseoflava

Mycena roseoflava is a species of agaric mushroom in the family Mycenaceae.[1][2] It was first discovered in 1964 by New Zealand mycologist Greta Stevenson.[3][1][4] It is a wood-inhabiting mushroom native to New Zealand.[5][6]

Mycena roseoflava
Bioluminescent Mycena roseoflava.jpg
Bioluminescent Mycena roseoflava found throughout New Zealand
Scientific classification edit
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Mycenaceae
Genus: Mycena
M. roseoflava
Binomial name
Mycena roseoflava

Insiticia roseoflava (G. Stev.) E. Horak

The small fungus is saprotrophic, meaning it gains nutrients from decaying organic matter and appears on stressed or dying plants, often found on rotting wood and twigs. As matter decomposes within a medium in which a saprotroph is residing, the saprotroph breaks such matter down into its composites.

M. roseoflava has white spores with small white caps, normally standing at a height of 5-10 millimeters and an equal width. It is most active in the autumn season and is not considered edible.[7][3] The stem relatively short is often attached to the side of wood, usually with a slightly swollen stem base. It is rare to see in Victoria, where it has only found only in wetter forests and rainforests, but is somewhat common in Tasmania.[8]

In the first descriptions of the mushroom, Stevenson noted the caps were "pink fading yellowish, hemispherical with a shallow central umbilicus." The texture of the caps were smooth to minutely floccose. The gills were described as adnate to slightly concurrent. The spores were observed to be globose, amyloid, and thin-walled.[3]

In 2021, the species was discovered to be bioluminescent, this never having been recorded previously.[9] According to New Zealand Fungarium curator Dr. Maj Padamsee, "It could have been found before but it just hadn’t been recorded – people who had been out in the forest might have seen something because it’s not very bright… it’s a very pale light colour." The enzymes produced from the compound luciferin gives the mushrooms their glow, as it also does with fireflies and some marine organisms.[10][5] The discovery of bioluminescence was made during an event dedicated to studying fungus that took place on Stewart Island.[11][12]


  1. ^ a b Stevenson, Greta (1982). Field Guide to Fungi. University of Canterbury. ISBN 978-0-900392-30-6.
  2. ^ "Mycena roseoflava G. Stev., Kew Bull. 19(1): 50 (1964)". Species Fungorum. Retrieved 2022-01-19.{{cite web}}: CS1 maint: url-status (link)
  3. ^ a b c Stevenson, Greta (1964). "The Agaricales of New Zealand: V". Kew Bulletin. 19 (1): 1–59. doi:10.2307/4108283. ISSN 0075-5974. JSTOR 4108283.
  4. ^ Segedin, Barbara P. (1987-04-01). "An annotated checklist of Agarics and Boleti recorded from New Zealand". New Zealand Journal of Botany. 25 (2): 185–215. doi:10.1080/0028825X.1987.10410067. ISSN 0028-825X.
  5. ^ a b "Glowing fungi, a new rust highlights of expedition". Otago Daily Times Online News. 2021-05-12. Retrieved 2022-01-19.
  6. ^ "Mycena roseoflava G. Stev. 1964 - Biota of NZ". NZFUNGI database on BiotaNZ. Retrieved 2022-06-09.
  7. ^ "Mycena roseoflava". The Hidden Forest. Retrieved 2022-01-19.{{cite web}}: CS1 maint: url-status (link)
  8. ^ T.E.R:R.A.I.N. 2019 Taranaki Educational Resource: Research, Analysis and Information Network. Accessed 11 April 2019
  9. ^ "Native Mycena roseoflava fungi photographed glowing with bioluminescence". RNZ. 2021-05-13. Retrieved 2022-01-19.
  10. ^ "Native Mycena roseoflava fungi photographed glowing with bioluminescence". MSN. May 13, 2021. Retrieved 2022-01-21.{{cite web}}: CS1 maint: url-status (link)
  11. ^ "Native Mycena Roseoflava fungi photographed glowing with bioluminescence". New Zealand Geographic. May 16, 2021. Retrieved 2022-01-19.{{cite web}}: CS1 maint: url-status (link)
  12. ^ "Glowing fungi and new rust species among Fungal Foray finds". Manaaki Whenua. Retrieved 2022-01-19.