Buried Bunny? The Hare’s Foot Inkcap

This mushroom has a long fruiting season and depending on what time it is discovered, it can appear to be a different fungus altogether…

I have come across the Hare’s Foot Inkcap (Coprinopsis lagopus / Coprinus lagopus) as early as May right through to the late autumn months. It gets its common English name from the way the young ‘furry-like’ fruiting body is reminiscent of a hare’s foot – albeit poking up from the ground (hence my tasteless post title).

This Inkcap mushroom is usually found in small groups and matures into relatively tall specimens (up to 12 or 13cm in some cases). They’re usually found on soil or leaf litter in woodland (sometimes in rarer field scenarios).

But quite often, as in this case, they especially seem to enjoy taking to wherever there has been man made disturbance in woodland. There had been a huge pile of woodchip/bark mulch, left by the recent activity of forestry workers. There were dozens of them, in several groups spread across one side of the large mound.

The white(ish) veil remnants are numerous on the young caps, which are very delicate and disappear on handling. The cap expands to almost flat, thinly spreading out the fine fibres on it’s greyish and finely grooved surface. During this ‘growing’ stage, the young white gills soon turn black and deliquesce (turning to inky fluid) typical of nearly all the Inkcaps.

The long white stem is also covered in fine white fibrous scales but usually end up becoming completely smooth.

If you do find some of these Inkcaps coming to the end of their life, you’ll notice the cap curls upwards as it decays. And if you pick and hold up the mushroom to the sky (gills towards you) you will also see it is very translucent due to the very thin flesh. All interesting stuff.

Anyway, they’re pretty common throughout the UK and unfortunately inedible as they’re not really worth the time. Never mind eh!?

QUICK ID TABLE: HARE’S FOOT INKCAP Coprinopsis lagopus / Coprinus lagopus

CAP / FLESH

Young: 2-4 cm high, conical or ovate, covered in fine downy white veil remnants. Mature: Up to 6cm diametre, thin, grey. Covered in whitish veil remnants.

STEM

6-13 cm x 0.3-0.5cm. White, swollen at base. Covered in fine white down. Smooth later.

GILLS / SPORE PRINT

White, turning black very soon and deliquescing.
Spore Print: Violaceous black (see how to take a spore print here).

HABITAT / SEASON

In groups on soil or leaf litter in woodland (less so in fields). Commonly found in disturbed woodland areas on wood chip or mulch. Early summer to late autumn.

EDIBILITY

Inedible. Too insubstantial.

The Genus COPRINUS & Related (Inkcaps): Characteristics to look out for:

• Most species gills dissolve into an inky black liquid as the black spores ripen.
• Growing on the ground, wood or dung.
• Many young species have woolly veil. Felty scales are often left on the mature specimen.
• Smaller species have distinct radial markings on the cap.

Coprinu lagopus © Mark Williams 2012.

This great picture of an older Coprinus lagopus was kindly supplied by Mark Williams at www.gallowaywildfoods.com – Notice the up curling edges and see how much of the dark inky fluid, containing the spores, has dissipated, leaving a lighter, translucent cap.

10 replies
  1. Sue Mallinson
    Sue Mallinson says:

    Lovely pictures :0) Our local wood seems to be empty of fungi except for a few well-eaten Jelly Ears on elder bushes – I think its just too waterlogged. By contrast, grassland fungi are doing well, Golden Waxcaps (Hygrocybe chlorophana) and Common Puffballs abundant at the weekend.

    Reply
  2. B Green
    B Green says:

    I found a few of these after a long rain in a garden spot in my backyard where I mulched with woodchips.

    Reply
    • Brad
      Brad says:

      I just found these in my veggie garden as well and was wondering if I needed to pull them or not. I thought maybe I watering my garden too much.

      Reply
  3. Stefani
    Stefani says:

    I just found the MOTHERLOAD of these guys in my wood-chip-mulched back yard. However, I am a tad alarmed. Each cluster I unearthed had what looked like THOUSANDS of fleas. could this be the case? Perhaps another bug that is tiny and jumps and bites? I have a cat that does use the wood chips to potty occasionally….
    THANKS FOR ANY HELP! I’d love to eradicate the nasty guys as soon as possible. The mushrooms are rad but if they’re bringing fleas to my doorstep, eviction.

    Reply
    • J C Harris
      J C Harris says:

      Hi Stefani
      It’s an interesting question. My honest answer is – I’m not sure.
      Although I’ve noticed that flies tend to like the black goo of deliquescent fungi, especially with the Shaggy Inkcap, I’m not sure if this just coincidence.

      There are such things as ‘Mycetophilidae – Fungus gnats’ which hatch from eggs laid in the remains of decomposing mushrooms (sometimes in the flesh of younger/healthier mushrooms).

      But there is little substance to this particular Inkcap. Perhaps the mulch provides extra nutrients, warmth & protection for the developing gnats? I’m not entirely sure at all.

      So, it’s possible the mushrooms are a key factor here in the presence of these little flies.
      Removing the fungal organism would be a huge challenge, almost impossible without removing all the chippings/mulch. But I wish you luck on that front.

      Reply

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