Name: Marasmius Fr.
Most Confident Observations:
Version: 11
Previous Version

First person to use this name on MO: Michael Wood
Editors: Alan Rockefeller, Danny Newman, walt sturgeon, Christian, I. G. Safonov, GALL Alain


Rank: Genus

Status: Accepted

Name: Marasmius

Author: Fr.

Citation: Fl. Scan.: 339 (1836)

Deprecated Synonyms: Heliomyces Lév.

Misspellings: Marsmius, Mirasmius, Marasimus

Notes on Taxonomy: [Edit] Brief Description:

Discussion: Diagnostic features of Marasmius xestocephalus include: a greyish yellow to yellowish orange pileus with yellowish brown disc; subdistant (15-18), narrow, pale yellow lamellae; a pubescent to subvelutinous stipe; fusoid basidiospores with mean 12.5 × 3.7 μm; and apically forked caulocystidia. The Thai material is indistinguishable from the protologue (Singer, 1964) and redescription of M. xestocephalus by Pegler, (1977), and differs only slightly from the recent description provided by Antonín (2007) who reported broader basidiospores (4.5-5.5 μm diam.). Until further material of this species is collected, sequenced and compared with Thai specimens, we tentatively recognize our species as M. xestocephalus.

Descriptions: [Create]


Add Comment
Do you really think that these are synonyms?
By: Oluna & Adolf Ceska (
2018-02-24 15:29:55 MST (-0700)

Deprecated Synonyms: Marasmius haematocephalus group, Heliomyces, Scorteus, Tephrophana, Androsaceus, Marasmius subsect. Haematocephali, Polymarasmius, Agaricus sect. Androsaceus, Discocyphella, Hymenoconidium, Hymenomarasmius, Marasmius sect. Collybiopsis, Protomarasmius

By: Alan Rockefeller (Alan Rockefeller)
2018-02-24 14:42:59 MST (-0700)

I do believe this name is valid – At least for now.

Partial Description and keys for Marasmius
By: Martin Livezey (MLivezey)
2012-02-17 10:05:52 MST (-0700)
Number of users interested in this name: 0

Created: 2007-01-12 14:26:16 MST (-0700) by Michael Wood (mykoweb)
Last modified: 2019-09-27 18:20:27 MST (-0700) by I. G. Safonov (IGSafonov)
Viewed: 2326 times, last viewed: 2020-02-09 19:05:18 MST (-0700)
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