Public Description of Hygrocybe conica (Schaeff.) P. Kumm.

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Name: Hygrocybe conica (Schaeff.) P. Kumm.
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Description status: Unreviewed

Taxonomic Classification:

Domain: Eukarya
Kingdom: Fungi
Phylum: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Hygrophoraceae

General Description:

Ecology: Saprobic under hardwoods or conifers; growing alone or gregariously; spring through fall, winter in warmer climates; widely distributed in North America.

Cap: 2-7 cm; sharply to broadly conic, sometimes convex with a conic point; slimy when fresh, but soon dry or tacky; smooth or finely hairy in age; reddish to scarlet orange, often with olive to greenish tints; bruising and discoloring black.

Gills: Nearly free from the stem; close; whitish, becoming yellowish orange or olive yellow; bruising black.

Stem: 6-11 cm long; 5-10 mm thick; colored like the cap, white at the base; equal; moist but not slimy; fragile; splitting; often grooved lengthwise or twisted; hollow; bruising black.

Flesh: Colored like the cap; thin; blackening on exposure.

Odor and Taste: Not distinctive.

Spore Print: White.

Microscopic Features: Spores 9-12 × 5.5-6.5 µ; smooth; elliptical to irregular. Gill tissue parallel.


widely distributed

Saprobic under hardwoods or conifers; growing alone or gregariously; spring through fall, winter in warmer climates


Kuo, M. (2007, January). Hygrocybe conica: The witch’s hat. Retrieved from the MushroomExpert.Com Web site:


Current Name:
Hygrocybe conica (Schaeff.) P. Kumm., Führ. Pilzk. (Zwickau): 111 (1871)

Agaricus conicus Schaeff., Fung. Bavar. Palat. 4: 2 (1774)
Agaricus tristis Pers., Observ. mycol. (Lipsiae) 2: 42 (1800) 1799
Godfrinia conica (Schaeff.) Maire, Bull. Soc. mycol. Fr. 18(suppl.): 116 (1902)
Hygrocybe chloroides (Malençon) Kovalenko, Opredelitel’ Gribov SSSR (Leningrad): 73 (1989)
Hygrocybe cinereifolia Courtec. & Priou, in Courtecuisse, Docums Mycol. 22(no. 86): 69 (1992)
Hygrocybe conica f. pseudoconica (J.E. Lange) Arnolds, Persoonia 12(4): 476 (1985)
Hygrocybe conica var. chloroides (Malençon) Bon, Docums Mycol. 15(no. 59): 52 (1985)
Hygrocybe conica var. olivaceonigra (P.D. Orton) Arnolds, Taxon: 122 (1974)
Hygrocybe conica var. tristis (Pers.) Heinem., Bull. Jard. bot. État Brux. 33(2): 432 (1963)

Hygrocybe olivaceonigra (P.D. Orton) M.M. Moser, in Gams, Kl. Krypt.-Fl., Edn 3 (Stuttgart) 2b/2: 66 (1967)
Hygrocybe pseudoconica J.E. Lange, Dansk bot. Ark. 4(no. 4): 24 (1923)
Hygrocybe tristis (Pers.) F.H. Møller [as ‘trista’], Fungi Faeroes 1(1): 140 (1945)
Hygrophorus conicus (Schaeff.) Fr., Epicr. syst. mycol. (Upsaliae): 331 (1838) [1836-1838]
Hygrophorus conicus var. chloroides Malençon, Champignon Supérieurs du Maroc 2: 496 (1975)

Hygrophorus conicus var. olivaceoniger (P.D. Orton) Arnolds, Persoonia 8(1): 103 (1974)

Hygrophorus olivaceoniger P.D. Orton, Trans. Br. mycol. Soc. 43(2): 263 (1960)
Hygrophorus tristis (Pers.) Bres., Iconogr. Mycol. 7: 349 (1928)

“witch’s hat”

Description author: walt sturgeon (Request Authorship Credit)