Marasmius cohaerens

The fused marasmius, Marasmius cohaerens (Alb. & Schwein.) Cooke & Quél.


Agaricus balaninus Berk.
  Mag. Zool. Bot., 1837 1: 509 (1837)
Agaricus ceratopus Pers.
  Mycol. eur. (Erlanga) 3: 214 (1828)
Agaricus cohaerens Pers.
  Syn. meth. fung. (Göttingen) 2: 306 (1801)
Marasmius ceratopus (Pers.) Quél.
  Fl. mycol. France (Paris): 319 (1886)
Mycena balanina (Berk.) P. Karst.
  Syll. fung. (Abellini) 5: 252 (1887)
Mycena cohaerens (Pers.) Gillet
  Hyménomycètes (Alençon): 275 (1874)

Common names

Fused marasmius
Marasme à pied corné (French)
Hoornsteeltaailing (Dutch)
Špička rohonohá (Czech)
Hornstokket Bruskhat (Swedish)
Twardzioszek spoisty (Polish)


Cap: 5-30 mm diameter, conical then convex finally plano-convex, usually with low, broad umbo, with deflexed or straight margin, weakly hygrophanous, when moist somewhat transculently striate at margin, color dark yellowish brown, darker in center; margin smooth when young, finely scalloped and striate when mature
Gills: adnexed to almost free, distant, broad, yellowish white to brownish at margin.
Stem: 20-75 mm tall x 2-4 mm thick (apex)/1.5-2.5 mm (base), long, slender; pale yellow at apex with color darkening to red-brown and finally black at base; cartilaginous, smooth, hollow, polished; base with pad of pale yellowish mycelium.
Odor: pungent, earthy.
Taste: not distinctive or with a slightly bitter aftertaste.
Spores: elliptical, hyaline, thin-walled, non-amyloid, smooth, 7-10 x 3-5 µm.
Spore print: white.
Edibility: unknown.
Habitat: scattered or gregarious on decaying hardwood leaves or rotten logs in deciduous or mixed forests; summer-fall; common in northeastern North America and Europe.

Medicinal properties

Antitumor effect

Polysaccharides extracted from the mycelial culture of M. cohaerens and administered intraperitoneally into white mice at a dosage of 300 mg/kg inhibited the growth of Sarcoma 180 and Ehrlich solid cancers by 60% and 70%, respectively (Ohtsuka et al., 1973).

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Natura Mediterraneo


Consiglio G, Setti L, Minari E.
The mycoflora of Bosco della Fontana.
Bollettino del Circolo Micologico G. Carini. 2007 53:15-38.

Desjardin DE, Retnowati A, Horak E.
Agaricales of Indonesia. 2. A preliminary monograph of Marasmius from Java and Bali.
Sydowia. 2000 52(2):92-193.

Gilliam MS.
The genus Marasmius in the northeastern USA and adjacent Canada.
Mycotaxon. 1976 4(1):1-144.

Ohtsuka S, Ueno S, Yoshikumi C, Hirose F, Ohmura Y, Wada T, Fujii T, Takahashi E.
Polysaccharides having an anticarcinogenic effect and a method of producing them from species of Basidiomycetes.
UK Patent 1331513, 26 September 1973.

Singer R.
Type studies on Agarics III
Lilloa. 1951 25:463-514.

Smith AH.
The Stirp Cohaerens of Marasmius.
Mycotaxon. 1979 9(1):341-7.

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