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Down in the Damp – The Birch Milkcap

As the common name states, this Milkcap is often found around Birch trees, but it can also grow with other deciduous tress, especially if the ground is mossy, rich and moist.

Lactarius tabidusThe Birch Milkcap Lacctarius tabidus is an extremely common member of the milkcap family. This group were randomly scattered about the place enjoying the damp conditions in a humble sized birch copse, just away from a grassy field footpath.

These are also one of the smaller Lactarius species, nicely formed with an all over yellowish brown (or dirty orange) colouring – they can be sometimes hard to spot! The cap grows up to 4-5cm across and forms a shallow central depression which often has a small bump in the middle. The similarly coloured stem (which becomes hollow after time) is fragile and easily breakable, and the crowded, slightly decurrent gills are again, similar in colour to the rest of the mushroom but paler.

As with all milkcaps, the gills will seep milk (latex) when handled or damaged. The Birch Milkcap doesn’t have large quantities of it, so there may not be much being produced. But when you do get your hands on some, dab a portion of the milk on a handkerchief (or similar white cloth) and it will slowly turn yellow. This will be extra proof that you are dealing with Lactarius tabidus. The taste of the milk is mild, slowly becoming slightly unpleasant and bitter. The flesh is just the same, so I wouldn’t recommend these for eating – there’s too much of an acrid taste.

Although, inedible it is indeed an interesting looking Milkcap and one to tick off your ‘found that’ list, so keep a look out when you’re around birch trees, especially if the ground is mossy and/or damp. Happy hunting.

Birch Milkcap Mushrooms

Lactarius tabidus – notice the shallow dip in the cap with a small central bump, and the seeping white milk (latex) from the crowded gills.

QUICK ID TABLE: BIRCH MILKCAP Lactarius tabidus

CAP / FLESH

4 – 5 cm across. Yellow-brown or dirty orange. Thin flesh. Shallowly convex with central depression, often with a small bump.

STEM

4 – 8cm x 0.5- 1cm. Same colour as cap. Cylindrical, often narrowing at the top.

GILLS / MILK / SPORE PRINT

Slightly decurrent, crowded. Similar colouring to rest of mushroom but paler. Producing white milk.
Spore Print: Pale cream (with a slight pinky tinge) (see how to take a spore print here).

HABITAT / SEASON

Very common, on moist, mossy and/or damp ground near deciduous trees – especially birch.
Late summer – late autumn.

EDIBILITY

Inedible. Acrid taste.

The Genus LACTARIUS (Milkcaps): Characteristics to look out for:

• Gills and flesh exude milk when broken or damaged.
• Look out for different coloured milks and any changes after a while when exposed to the air.
• Granular/fragile flesh similar to Russulas (Brittlegills), breaking easily.

Deliciosus! – The Saffron Milkcap

The mushroom season is well under way in the UK. Since September there have been many species popping up here and there, but there’s still more to come. October and November often produce the goods in abundance…

Saffron Milkcap MushroomOne of my latest and tastiest finds has been the Saffron Milkcap (Lactarius deliciosus) – one the most sought after Milkcaps, especially in Europe which grows exclusively with pines from summer to autumn. They aren’t overly common but relatively frequent, and to add to the fun, they are quite regular in showing up in the same place every year – but this is only in my experience, perhaps it’s not always so. I’d just thought I’d mention it (leave comments if you agree or not).

This lovely edible mushroom, like most tasty finds (it seems) does have naughty lookalikes, but fear not as they are non-poisonous threats coming in the form of the aptly named False Saffron Milkcap (Lactarius deterrimus) thought only to grow with spruce and Lactarius semisanguifluus which also occur with pine. The differences are annoyingly subtle which I will explain further. Firstly, let’s take a look at the main character itself…

The Saffron Milkcap’s cap can grow up to 12cm in diametre and is slightly funnel shaped with a margin that is noticeably curved inwards when younger. The fleshy, carrot orange cap often shows stronger concentric bands around the surface (in this case very subtle) which can be tinged here and there with olive-green patches. Caps on the lookalike mushrooms tend to develop a wider covering of green, sometimes covering the cap completely.

The milk colour is a key ID feature with this Milkcap, when compared to the others. It has bright carrot orange coloured milk (coming from the gills once damaged or handled). The lookalikes share a similar colour but are noticeably more reddish, turning deeper red/purpleish over 10 – 30 minutes minutes once exposed to the air.

Moving on to the stem you’ll see the gills are only mildy decurrent and the pale whitish/orange to salmon/orange stem often has a collection of darker, circular pits, as shown in the pictures here. The False Saffron Milkcap can have these marks but are less frequent and Lactarius semisanguiluus doesn’t have any – it’s stem can clearly be seen to turn green over time and upon handling.

With experience these finer differences will become more apparent but even now I sometimes don’t trust my own judgement. Luckily a colleague confirmed the finding. Always a good idea to get a second opinion. And if you’re unsure of the difference between Pine and Spruce (as I was) then this is a good link to help in identification.

And while we’re on the subject of good links, take a look at this great Saffron Milkcap recipe. Enjoy.

Lactarius deliciosus - edible milkcap

The Saffron Milkcap. Notice the darker pitting on the stem (top right) and the bright ‘carrot orange’ milk from the gills (bottom right).

QUICK ID TABLE: SAFFRON MILKCAP Lactarius deliciosus

CAP / FLESH

3 – 15cm diametre. Varying carrot/orange colour / sometimes greenish in places. Darker markings showing concentric bands. Convex with central depression. Initially inrolled at margin. Firm, brittle consistency.

STEM

Slightly decurrent. Narrow spacing. Pale pink/apricot to saffron. Eventually carrot coloured. Olive-green markings when bruised.

GILLS / SPORE PRINT

3 – 7cm x 1.5 – 2cm. Whiteish/pale orange – salmon coloured. Often with darker circular depressions. Green in places over time.
Spore Print: Pale ochre (see how to take a spore print here).

HABITAT / SEASON

In grass with pine trees. Summer/autumn. Frequent.

EDIBILITY

Edible. Very Good. Popular in Europe.

The Genus LACTARIUS (Milkcaps): Characteristics to look out for:

• Gills and flesh exude milk when broken or damaged.
• Look out for different coloured milks and any changes after a while when exposed to the air.
• Granular/fragile flesh similar to Russulas (Brittlegills), breaking easily.