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Angel Bonnets at Christmas (Mycena arcangeliana)

Hope you all have a great Christmas and new year. I was going to squeeze this post in just before 2015 began, but I was too busy drinking!

Mycena arcangelianaThis autumn mushroom had clung on right until Christmas Day – although the examples I discovered were past their prime, I’m showing some images of these mushrooms I found earlier in the season.

Aptly named for a Christmas time find, The Angel’s Bonnet (Mycena arcangeliana) is an attractive and perfectly formed example of a typical Mycena (or Bonnet) mushroom; broadly conical with a long delicate and slender stem.

Having the angelic name (which may be in honour to the botanist Giovanni Arcangeli) you’d be forgiven for thinking that this would be a pure white species, but in fact its ‘whitish’ translucent and striated cap has subtle grey-brown hues, especially at the centre. There may also be tinges of yellow or olive colours too.

The gills are initially white and turn pinkish over time, but the spore print is white, or whitish. The fragile stem is pale at the apex but is essentially greyish, becoming darker further down, especially at the base which is covered in a fine white down.

Take time also to have a quick sniff of this mushroom. It has a distinctive smell of iodoform – or that ‘hospital smell’ as I call it. You may need to crush the cap flesh to get a real good whiff!

It grows in typical ‘lined’ group formations on stumps and branches of deciduous trees and are very attractive when in full bloom (so to speak). The examples in the photos here are spread across a fallen branch.

They are very common and widespread throughout the autumn months, but this Mycena is also known as the ‘Late-Season Bonnet’ which is probably why it appeared on this mild winter day.

A nice find I thought. Anyway, keep your eye out for the usual winter suspects, especially the Wood Blewits and Velvet Shanks which (unlike our Bonnet mushroom here) are edible and tasty.

Happy New Year.

Mycena arcangeliana image selection

Mycena arcangeliana. Typically growing in rows on deciduous stumps and branches.

QUICK ID TABLE: ANGELS BONNET Mycena arcangeliana

CAP / FLESH

1-5cm across. Broad conical shape. White with a grey-brown hue and sometimes olive (or yellowish) tints. Striate markings with white margin. Iodoform smell.

STEM

2-4cm x 0.1-0.2cm. Whitish grey. Darker at base which is covered with white down.

GILLS / SPORE PRINT

Adnex and crowded. Initially white the turning pinkish.

Spore Print: Whitish (see how to take a spore print here).

HABITAT / SEASON

Typically in rows on deciduous stumps, logs and branches. Mainly autumn. Very common.

EDIBILITY

Indedible.

The Genus MYCENA (Bonnets): Characteristics to look out for:

• Small conical or bell-shaped caps (sometimes flattening out). Often with a slight central bump (or umbo).
• Often cap edge is striated.
• Long and delicate stem (some exude fluid when broken).
• Also look for dark edges on the gills (not all Mycenas have this).
• Some species found on rotting wood. Others on leaf litter and woodland debris.

With a brown bump! – The Common Bonnet

Happy new year to you all. It’s a typically dull and cold(ish) January and apart from the lovely edible Wood Blewit, Velvet Shank and Oyster Mushrooms around at this time, there are other groups of mushrooms to be seen, although not as palatable.

Common Bonnet MushroomThe Common Bonnet (Mycena galericulata) is one of these mushrooms. Very common and present all year round, it is one of the larger Bonnets, growing up to 6cm across at maturity with a broad central umbo. It is often found in small or large clusters on broad-leaved stumps, branches and logs. It can be confused with the Clustered Bonnet (Mycena inclinata) which is very similar looking but only fruits from late summer to autumn, and is a much darker brown, growing exclusively on oak stumps.

It has mild brown colouring, sometimes grey-brown with a slightly darker centre, and the margin is noticeably striated. It has white adnate gills which feature a tiny decurrent tooth. With age, the gills eventually turn pale pink as the spores mature. If you hold the cap up to the light you will also notice the gills are linked with many tiny veins (cross-veins), this is typical of several Mycena species.

The stem shares the same colour as the cap but is clearly much lighter towards the apex where it meets the cap and gills and darker towards the base where it covered in fine white fibres.

Although edible, I have heard this mushroom is unfortunately bland and not really worth it. The smell is sometimes rancid but the flavour can be mild. The problem is, they’re too delicate and not very substantial. Probably in a survival situation you could turn to them. Hey ho!

Notice the wide central umbo and the conical appearance of the younger specimen. Bottom right: cross veining on the gills.

Notice the wide central umbo and the conical appearance of the younger specimen. Bottom right: cross veining on the gills.

Why the Bonnet name?

Mycena or ‘Bonnets’ get their name from their appearance, which is similar to the bonnets worn by the Mycenae in ancient Greece.

QUICK ID TABLE: COMMON BONNET Mycena galericulata

CAP / FLESH

2-6cm across. Brown to grey-brown. Initially conical, expanding to a broad bell shape with noticeable umbo. Paler at margin, striated. Flesh is white.

STEM

2-10cm x 0.3×0.9cm. Base similar colour to cap. Paler at the apex. Tough and hollow. Base covered in white fibres.

GILLS / SPORE PRINT

Adnate (decurrent tooth). Initially white, turning pinkish.
Spore Print: Cream (see how to take a spore print here).

HABITAT / SEASON

Stumps, logs and fallen branches of broad leaved trees. All year. Very common.

EDIBILITY

Edible but not really worth it.

The Genus MYCENA (Bonnets): Characteristics to look out for:

• Small conical or bell-shaped caps (sometimes flattening out). Often with a slight central bump (or umbo).
• Often cap edge has striations.
• Long and delicate stem (some exude fluid when broken).
• Also look for dark edges on the gills (not all Mycenas have this).
• Some species found on rotting wood. Others on leaf litter and woodland debris.