Rhodocollybia maculata
| Rhodocollybia maculata | |
|---|---|
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| Species: | R. maculata
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| Binomial name | |
| Rhodocollybia maculata (Alb. & Schwein.: Fr.) Singer[1]
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Collybia maculata | |
Rhodocollybia maculata | |
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 | gills on hymenium |
 | cap is convex or flat |
 | hymenium is adnexed |
 | stipe is bare |
 | spore print is pink to cream |
 | ecology is saprotrophic |
 | edibility: edible, but unpalatable or psychoactive |
Rhodocollybia maculata, common name Spotted Toughshank, is a species of fungus in the mushroom family Marasmiaceae.[2][3] It often appears around rotting conifer wood.[4] One of its isolated constituents, collybolide, is possibly a potent and selective K-opioid receptor agonist like Salvinorin A.[5]
Description
The cap is cream-colored with red-brown spots. The edge remains inrolled for an extended period of time. The whitish gills are crowded, becoming spotted in age. The similarly colored stipe is long, tough, hollow, and tapered downwards.[4]
A variety known as scorzonerea is characterized by yellowish color of its gills, and sometimes the stipe.[4]
Edibility
Though non-toxic,[6] this species is considered inedible due to its toughness and unpalatability;[7] it is typically bitter.[3]
K-opioid agonism
A constituent of the R. maculata fungus, collybolide, may be a potent and selective K-opioid receptor agonist like Salvinorin A. If true, the modifiable structure has attracted attention for the development of next-generation KOR agonist analgesics, antipruritics and antidepressants.[citations exist] It is currently unknown if collybolide is a hallucinogen in humans.[5]
Gallery
References
- ^ AMP - Rhodocollybia maculata Archived 2012-03-31 at the Wayback Machine
- ^ Rhodocollybia maculata (MushroomExpert.Com)
- ^ a b California Fungi: Rhodocollybia maculata
- ^ a b c Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. p. 120. ISBN 978-0-88192-935-5.
- ^ a b Gupta, Achla; Gomes, Ivone; Bobeck, Erin N.; Fakira, Amanda K.; Massaro, Nicholas P.; Sharma, Indrajeet; Cavé, Adrien; Hamm, Heidi E.; Parello, Joseph; Devi, Lakshmi A. (2016). "Collybolide is a novel biased agonist of κ-opioid receptors with potent antipruritic activity". Proceedings of the National Academy of Sciences. 113 (21): 6041–6046. doi:10.1073/pnas.1521825113. ISSN 0027-8424. PMC 4889365. Cite error: The named reference "GuptaGomes2016" was defined multiple times with different content (see the help page).
- ^ Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuide. p. 176. ISBN 978-0-7627-3109-1.
- ^ Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 73. ISBN 978-1-55407-651-2.
External links
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- Marasmiaceae
- Fungi of North America
- Taxa named by Johannes Baptista von Albertini
- Taxa named by Lewis David de Schweinitz