Nitrous Bonnet

Mycena leptocephala (Pers.) Gillet

2 Observations

4 weeks ago Last Observed

Mycena leptocephala, commonly known as the nitrous bonnet, is a species of fungus in the family Mycenaceae. The mushrooms have conical grayish caps that reach up to 3 cm (1.2 in) in diameter, and thin fragile stems up to 5 cm (2.0 in) long. The gills are gray and distantly spaced.

Source: Wikipedia

Spore Print

Season

Native

Distribution

Widespread and common

Habitat

In mixed woodland on mossy stumps, fallen branches and woody debris

Cap

Colour
Shape	Conical, Campanulate
Surface	Pruinose
Width	0.5 - 2.5 cm
Margin	Striate, Sulcate

Gills

Interveined

Colour
Attachment	Adnexed, Adnate

Flesh

Colour
Odour	Strong nitrous or bleach-like
Taste	Mild to astringent

Stem

White hairs at base

Colour
Height	2 - 7 cm
Width	1 - 5 mm
Texture	Pubescent
Shape	Cylindric

Spores

Colour
Type	amyloid
Shape	Ellipsoid, Lacrymoid
Ornamentation	Smooth
Size	8-11 x 4-5.5 μm

Microscopic Features

Up to 80 μm

Cheilocystidia	Club-shaped (Clavate)

Confirmed

Unconfirmed

Classification

↳ Phylum: Basidiomycota
↳ Subphylum: Agaricomycotina
↳ Class: Agaricomycetes
↳ Subclass: Agaricomycetidae
↳ Order: Agaricales
↳ Family: Mycenaceae
↳ Genus: Mycena

Source: UKSI via NBN Atlas

Synonyms

Agaricus alcalinus subsp. leptocephalus (Pers.) anon. ined.
Agaricus leptocephalus Pers.
Mycena alcalina var. chlorinella J. Lange
Mycena alcalina var. chlorinella J.E. Lange
Mycena ammoniaca sensu Pearson (Naturalist (Hull): 48 (1955)], sensu auct. mult.
Mycena chlorinella (J.E. Lange) Singer
Mycena leptocephala (Pers. ex Fr.) Gillet
Mycena metata sensu Rea (1922), sensu auct.

Source: UKSI via NBN Atlas