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Fawny coloured Deer Shield

This common wood-rotting mushroom has a variable season. It is prolific in summer and autumn, but if conditions are mild enough, it can appear as early as April or early winter if the weather is favourable.

Pluteus cervinus The Deer Shield or Deer Mushroom (Pluteus cervinus) is one of the most common Shield mushrooms; and like nearly all of this genus, it is found on dead wood, stumps, logs and also wood chippings. It is a saprobe; getting nutrition from the dead wood and essentially breaking down the organism. It’s all part of life’s beautiful tapestry.

The cap of this particular Pluteus is smooth with variable colouring; mainly shades of brown (fawny like), but it can be paler and young specimens can be quite dark, as shown in the photo below. Subtle streaks can be seen radiating around the surface. Most often there is a slightly prominent central bump (umbo).

All mushrooms in this genus have a pink spore print and their gills are ‘free’ from the stem (See my other post on the Willow Shield mushroom here). They are initially white in colour, but over time they take on a pinkish hue as the spores mature. This is a good identification characteristic, albeit dependent on its age! Look around for older specimens if you can.

The stem is white and often becomes streaked with darker yellow-brown fibres as it ages. Also take a look at the base, where it usually is slightly swollen.

Edibility-wise there’s not much going for our lovely Deer Shield, but it still is edible (although it may not agree with some). The flesh is white, delicate and thin with a slight odour and taste similar to radish. I found a great blog tackling this culinary challenge, see here for a little advice on the subject: http://foragerchef.com/the-fawndeer-mushroom-pluteus-cervinus

Why the Deer name?

When I was first aware of the common name, I assumed that ‘Deer’ was simply in reference to the colour. But apparently this is not so. Under the microscope, small cells (known as cystidia) present on the edge of the gills, show long protusions  that are crowned with two tiny ‘horn’ shapes which resemble antlers – hence the ‘deer’ reference. Cervinus is also derived form cervus which is Latin for deer. You learn something new everyday!

I hope have luck finding these handsome mushrooms some time soon, as well as any others you may find along the way. Enjoy.

Deer Shield Mushroom

Pluteus cervinus – The Deer Shield. Top middle: a Younger convex/darker example. Bottom: Giils initially white, turning pink as the spores mature.

QUICK ID TABLE: DEER SHIELD Pluteus cervinus

CAP / FLESH

4-12cm across. Initially bell shaped/convex; flattening out with age, Often with a raised central bump (umbo). Flesh is white; smells and tastes faintly of radish.

STEM

7-10cm x 05-1.5cm. White; later becoming streaked with darker brownish fibres.

GILLS / SPORE PRINT

Free. Initially white, turning pink.
Spore Print: Pink (see how to take a spore print here).

HABITAT / SEASON

Dead wood, fallen hardwood trees and sometimes woodchip. Mainly autumn but sporadic throughout the year. Very common.

EDIBILITY

Edible. Not considered particularly good.

The Genus PLUTEUS (Shield): Characteristics to look out for:

• The majority grow on wood or woodland debris/wood chippings etc.
• Gills always free, slowly mature from white/pale to pink.
• Pink spore print.

What a rotter! – The Willow Shield

This is the first in my posts aimed at the Pluteus genera of mushrooms. Nearly always found on rotting wood including logs, stumps and general wood debris, hence the savvy title. The common name used for this group is ”Shield”, and a very apt name it is too because they always remind me of actual shields – fancy that!

Pluteus salicinusFeatured this time is the Willow Shield (Pluteus salicinous). I almost missed several of these on a walk through the woods. The upper canopy had drained quite a lot of the natural light. It was also still dry out there as the recent weather hadn’t delivered much rain – but plenty of sticky warm days!

Perhaps the warmth and dryness had taken the moisture out of these beauties, the wrinkled edges in the photos aren’t usually a common feature of a healthy young specimen.

Imperfections aside, the Willow Shield is a pretty dull mushroom anyway – but on closer inspection really quite distinct. The first thing that struck me was the colour of the cap. Although it appears a mundane grey in these photos (better captured in image below) there is an overall tint of blue (sometimes green) but very subtle, and that really caught my attention. It’s sometimes hard to capture in a photograph, but part of that may be a trick of light and what angle you view it from – or do I need another camera!?

The cap holds further details for inspection. It is noticeably darker at the centre, and after flattening out as it matures it usually leaves a slight umbo (or bump). This central point is very finely velvety to the touch where subtle coloured streaks radiate outwards from it’s centre. The stem itself is a good old ‘uncomplicated’ smooth white (although sometimes with a darker tinge at it’s base).

As with all Pluteus mushrooms, their gills are free from the stem and the spore print will be pink. As this mushroom ages, it’s gills will turn from white to pink as the spores mature.

And last but not least you’ve probably noticed I have categorised this post in ‘What’s your Poison?’ and ‘Tales of Toadstools / The Inedibles!’ because this mushroom is generally classed as inedible. But I have read elsewhere that unlike other Pluteus species, this mushroom (or now should I say toadstool!?) contains small amounts of psilocybin (compound psilocin). This is the same substance found in Magic Mushrooms (or Liberty Caps). So it’s advisable to leave this toadstool alone.

Pluteus salicinus

Notice the cap has a slight blue colouring and a distinctive bump (or umbo) at the centre which is darker in colour

QUICK ID TABLE: WILLOW SHIELD Pluteus salicinous

CAP / FLESH

2-6cm across. Convex the flat with a slight bump (umbo). Bluish or greenish grey. Darker radiating streaks. Darker at centre.

STEM

3-5cm x 0.2-0.7cm. White. Tinged with cap colour at base.

GILLS / SPORE PRINT

Free. White then pink
Spore Print: Pink (see how to take a spore print here).

HABITAT / SEASON

On deciduous rotting wood, especially willow. Spring – late autumn.

EDIBILITY

Not edible. Contains some psilocybin (psilocin). Avoid.

The Genus PLUTEUS (Shield): Characteristics to look out for:

• The majority grow on wood or woodland debris/wood chipings etc.
• Gills always free, slowly mature from white/pale to pink.
• Pink spore print.