Hypomyces lactifluorum, or the lobster mushroom, is a parasitic ascomycete fungus that grows on certain species of mushrooms, turning them a reddish orange color that resembles the outer shell of a cooked lobster. Contrary to its common name, the species itself is neither a mushroom nor a crustacean.
| Lobster mushroom | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Sordariomycetes |
| Order: | Hypocreales |
| Family: | Hypocreaceae |
| Genus: | Hypomyces |
| Species: | H. lactifluorum
|
| Binomial name | |
| Hypomyces lactifluorum | |
Description
editH. lactifluorum specifically attacks members of the genera Lactarius and Lactifluus (milk-caps), and Russula (brittlegills), such as Russula brevipes and Lactifluus piperatus in North America. At maturity, the reddish orange H. lactifluorum thoroughly covers its host, rendering it unidentifiable.[1][2] As it ages, its color can go from the entire Sporocarp (fungus) surface and Lamella (mycology) to the margin of the mushroom. [3]
The species produces a white spore print.[2]
Similar species
editSimilar species include Hypomyces cervinigenus, H. chrysospermus, and H. luteovirens.[1] Turbinellus floccosus has a similarly colored cap but its underside has fine wrinkles rather than wavy gills.[2] White, pink and yellow molds could be toxic lookalike species.[4]
Habitat
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Hypomyces lactifluorum is found in wooded areas, often near Russula brevipes or Lactarius growing in conifer forests, in particular under ponderosa pine in the American Southwest and the Pacific Northwest.[5] Its range in the woods have been described as "solitary, scattered or gregarious" depending on location.[6]
Uses
editLobster mushrooms are widely eaten and enjoyed freshly foraged and cooked.[7] They are commercially marketed and sometimes found in grocery stores; they have been made available at markets in Oregon.[7] They have a seafood-like flavor and a firm, dense texture.
While edible, field guides note the hypothetical possibility that H. lactifluorum could parasitize a toxic host and that individuals should avoid consuming lobster mushrooms with unknown hosts, although no instances of toxicity have been recorded.[7][8][9] During the course of infection, the chemicals get converted into other more flavorful compounds, making lobster mushrooms more edible. Lactarius piperatus has a spicy, hot flavor but that flavor is counteracted by the parasite H. lactifluorum, making it more edible and delicious.[10] One author notes that he has personally never experienced any trouble from consuming them[7] and another notes that there have been no reports of poisoning in hundreds of years of consumption.[9]
Research
editHypomyces lactifluorum | |
|---|---|
 | Smooth hymenium |
 | Lacks a stipe |
 | Ecology is parasitic |
 | Edibility is choice |
A study from Quebec found that an infected R. brevipes mushroom mostly contained lobster mushroom DNA, with only trace amounts from the original species. This study also measured intermediate products of chemical reactions, or metabolites, in infected and non-infected mushrooms. Metabolites help determine how fungi look and taste, and whether they are fit to eat. They found that through the course of its infection, the parasitic fungus completely alters the diversity and amount of metabolites in R. brevipes.[11]
References
edit- ^ a b Davis, R. Michael; Sommer, Robert; Menge, John A. (2012). Field Guide to Mushrooms of Western North America. Berkeley: University of California Press. pp. 382–383. ISBN 978-0-520-95360-4. OCLC 797915861. Archived from the original on 2022-06-03. Retrieved 2022-10-08.
- ^ a b c Audubon (2023). Mushrooms of North America. Knopf. p. 71. ISBN 978-0-593-31998-7.
- ^ Laperriere, Genevieve; Desgagné-Penix, Isabel; Germain, Hugo (May 2018). Xu, J. (ed.). "DNA distribution pattern and metabolite profile of wild edible lobster mushroom ( Hypomyces lactifluorum / Russula brevipes )". Genome. 61 (5): 329–336. doi:10.1139/gen-2017-0168. ISSN 0831-2796. PMID 29514010.
- ^ Davis, R. Michael; Sommer, Robert; Menge, John A. (2012). Field Guide to Mushrooms of Western North America. Berkeley: University of California Press. p. 29. ISBN 978-0-520-95360-4. OCLC 797915861. Archived from the original on 2022-06-03. Retrieved 2022-10-08.
- ^ Arora, David (1991). All That the Rain Promises and More. Berkeley: Ten Speed Press. p. 248. ISBN 978-0-89815-388-0.
- ^ Arora, David (1986). Mushrooms Demystified: A Comprehensive Guide to the Fleshy Fungi (second ed.). Berkeley: Ten Speed Press. p. 884. ISBN 978-0-89815-169-5.
- ^ a b c d Meuninck, Jim (2017). Foraging Mushrooms Oregon: Finding, Identifying, and Preparing Edible Wild Mushrooms. Falcon Guides. p. 16. ISBN 978-1-4930-2669-2.
- ^ Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 379. ISBN 978-1-55407-651-2.
- ^ a b McFarland, Roger; Mueller, Gregory M. (2009). Edible Wild Mushrooms of Illinois and Surrounding States: A Field-to-Kitchen Guide (Field-To-Kitchen Guides). Urbana: University of Illinois Press. pp. 71–72. ISBN 978-0252076435.
- ^ "Hypomyces lactifluorum, the lobster mushroom, Tom Volk's Fungus of the Month for August 2001". botit.botany.wisc.edu. Archived from the original on 2021-05-04. Retrieved 2021-05-04.
- ^ "A taste of the wild—Deciphering the lobster mushroom". Canadian Science Publishing. Archived from the original on 2021-07-12. Retrieved 2021-05-04.
External links
edit
Media related to Hypomyces lactifluorum at Wikimedia Commons- A lobster mushroom article on Tom's Fungi
- AmericanMushrooms.com: Lobster Mushroom
- Lobster mushroom on mykoweb
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