Tricholoma viridiolivaceum
| Tricholoma viridiolivaceum | |
|---|---|
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| Tricholoma viridiolivaceum fruiting body | |
Scientific classification  | |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Agaricales |
| Family: | Tricholomataceae |
| Genus: | Tricholoma |
| Species: | T. viridiolivaceum |
| Binomial name | |
| Tricholoma viridiolivaceum Stevenson (1964) | |
| Tricholoma viridiolivaceum | |
|---|---|
| Mycological characteristics | |
 | Gills on hymenium |
 | Cap is convex or flat |
 | Hymenium is sinuate |
 | Stipe has a ring or is bare |
 | Spore print is white |
 | Ecology is mycorrhizal |
 | Edibility is unknown |
Tricholoma viridiolivaceum is a species of mushroom of the family Tricholomataceae. It was first described by the New Zealand mycologist Greta Stevenson in 1964.[1]: 16 The fungus is endemic to New Zealand, where it is found in ectomycorrhizal associations with Nothofagus trees.[2]: 42 [3] The fruiting bodies are noted for having an olive-green colour in the centre of the pileus (cap), and for having a strong fishy smell.[1]: 16
Taxonomy
The species was first described by the New Zealand mycologist Greta Stevenson in 1964.[1]: 16 T. viridiolivaceum is categorised in the section Rigida of the genus Tricholoma.[4]: 14
Description
The fruit bodies (basidiocarps) of T. viridiolivaceum have caps (pilei) which reach 3–8 centimetres (1.2–3.1 inches) in diameter. They are characterised by the olive-green colour in the centre.[1]: 16 [4]: 22 They are convex with a downward-curved edge, later becoming irregularly flat. The surface is moist and smooth when fresh, but becomes slightly fibrous as it dries. The flesh is dull white. The lamella (gills) are a creamy white colour and can later become dull pink. They are sinuate and moderately distant. The stipe measures 3–8 × 3–5 cm in length and width. It can have traces of a fibrillose ring. It is creamy in colour above the ring, and olive-green below. The spore print is white. The spores are thin-walled and measure 6–7 × 4–5 μm. The hyphae can measure 5 μm in diameter. The mushrooms are noted for having a strong fishy smell.[1]: 16
Distribution and habitat
Tricholoma viridiolivaceum is endemic to New Zealand.[3] The fungus is found in ectomycorrhizal associations with Nothofagus trees,[1]: 16 [2]: 42 and may possibly also be associated with Leptospermum species.[4]: 22
References
- 1 2 3 4 5 6 Stevenson, Greta (1964). "The Agaricales of New Zealand: V". Kew Bulletin. 19 (1). Springer, Royal Botanic Gardens, Kew: 1–59. ISSN 0075-5974. JSTOR 4108283.
- 1 2 McKenzie, E. H. C.; Buchanan, P. K.; Johnston, P. R. (2000). "Checklist of Fungi on Nothofagus species in New Zealand". New Zealand Journal of Botany. 38 (4): 635–720. doi:10.1080/0028825X.2000.9512711. ISSN 0028-825X.
- 1 2 "Tricholoma viridiolivaceum G. Stev". New Zealand Threat Classification System. Retrieved 8 August 2026.
- 1 2 3 Reschke, Kai; Popa, Flavius; Yang, Zhu L.; Kost, Gerhard (2018). "Diversity and Taxonomy of Tricholoma Species from Yunnan, China, and Notes on Species from Europe and North America". Mycologia. 110 (6): 1081–1109. doi:10.1080/00275514.2018.1512295. ISSN 0027-5514.
External links
Media related to Tricholoma viridiolivaceum at Wikimedia Commons