Collybia brunneocephala

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Collybia brunneocephala
Placer County, California, 2015
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Tricholomataceae
Genus: Collybia
Species:
C. brunneocephala
Binomial name
Collybia brunneocephala
Synonyms

Clitocybe brunneocephala[1]
Lepista brunneocephala[2]
Melanoleuca harperi (Murrill, 1913)[3]
Tricholoma harperi[4]

Collybia brunneocephala
View the Mycomorphbox template that generates the following list
Cap is convex or flat
Hymenium is adnate or decurrent
Stipe is bare
Spore print is pink
Edibility is choice

Collybia brunneocephala, also known as the brown blewit or brownit, is a species of gilled mushroom.[5] Previously designated Clitocybe brunneocephala,[2] the brownit and its lavender-colored cousin the wood blewit were reassigned to the genus Collybia in 2023.[6]

As its name implies, the brownit is a brown-capped mushroom with light-beige gills.[2] The cap is usually described as "lubricious"[2][3] and often has a rubbery-translucent gloss without being sticky. The brownit also has a bit of a stumpy, short-legged quality, as the ratio of cap diameter to stipe height heavily favors the cap.[2] The brownit flushes most frequently from December to March,[1][5] and is most commonly observed in California in western North America.[2] Often found in lawns and open meadows, sometimes in fairy rings, it also turns up under California native oaks and Monterey cypress.[7]

The brownit is considered a "excellent" edible mushroom,[3] but it can be confused with Entoloma lividoalbum, Entoloma sericatum, and Entoloma rhodopolium, all of which are poisonous.[3] Brownits can also be mistaken for Collybia nuda (which it resembles in both "size and stature")[3] and Clitocybe tarda, but can be distinguished by color and size.[2] C. nuda often looks brown in age, but will retain undertones of lilac.[2] Clitocybe tarda mushrooms are smaller than C. brunneocephala and will retain some hint of purple on the cap, unlike Collybia brunneocephala which stays in the color range from brown to light beige.[2]

William A. Murrill originally described this species in 1913 as a Melanoleuca, based on a specimen collected by R. A. Harper in Alameda County, California.[3][4] However, based on the minimal information provided, it was not included in later descriptions of Clitocybe species.[1] The brownit was rediscovered by David Arora in Santa Cruz County, California, in the 1970s, and Howard E. Bigelow formally redescribed it in his 1982 Clitocybe monograph using Arora's specimens.[1] There was already a Clitocybe harperi, so the Bigelow gave it a new name suggestive of its brown (brunneo-) head (-cephela).[1][3] According to recent genetic studies by taxonomists in China, C. brunneocephala belongs to a subgenus designated Leucocalocybe, along with what were formerly designated Lepista personata, Lepista nuda, Lepista fibrosissima, Lepista sordida, and Leucocalocybe mongolica [zh; ru], "forming a strongly supported monophyletic clade (BP = 95%, PP = 1.00)."[6]

See also

References

  1. ^ a b c d e Bigelow, Howard E. (1982). North American Species of Clitocybe. Lubrecht & Cramer Ltd, Port Jervis. pp. 176–177. ISBN 3-7682-5472-0.
  2. ^ a b c d e f g h i Davis, R. Michael; Sommer, Robert; Menge, John (2012). Field Guide to Mushrooms of Western North America. California Natural History Guides Vol. 106. Berkeley: University of California Press. pp. 146–147. doi:10.1525/9780520953604. ISBN 9780520953604. JSTOR 10.1525/j.ctt1pn688. LCCN 2011037103. OCLC 797915861. S2CID 132384894.
  3. ^ a b c d e f g Desjardin, Dennis E.; Wood, Michael G.; Stevens, Frederick A. (2016). California Mushrooms: The Comprehensive Identification Guide. Timber Press. pp. 159–160. ISBN 978-1-60469-660-8. LCCN 2014000925. OCLC 951644583.
  4. ^ a b Murrill, William A. (1913). "The Agaricaceae of the Pacific Coast—IV. New Species of Clitocybe and Melanoleuca". Mycologia. 5 (4). Mycological Society of America, Mycological Society of New York Botanical Garden. Bronx, N.Y.: New York Botanical Garden: 217–218, 223. doi:10.1080/00275514.1913.12018520. ISSN 0027-5514. LCCN 57051730. OCLC 1640733 – via Biodiversity Heritage Library.
  5. ^ a b "Brownit (Collybia brunneocephala)". iNaturalist. Retrieved 2024-02-05.
  6. ^ a b He, Zheng-Mi; Chen, Zuo-Hong; Bau, Tolgor; Wang, Geng-Shen; Yang, Zhu L. (November 2023). "Systematic arrangement within the family Clitocybaceae (Tricholomatineae, Agaricales): phylogenetic and phylogenomic evidence, morphological data and muscarine-producing innovation". Fungal Diversity. 123 (1): 1–47. doi:10.1007/s13225-023-00527-2. ISSN 1560-2745. S2CID 265474036.
  7. ^ Arora, David (1986). Mushrooms Demystified: A Comprehensive Guide to the Fleshy Fungi (2nd ed.). Berkeley: Ten Speed Press. pp. 154–155. ISBN 978-0-89815-169-5.
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