• ABOUT
  • BIRDING 2018
  • Birding 2019
  • BLOG POSTS
  • Butterflies 2018
  • Resources

earthstar

~ a celebration of nature

earthstar

Tag Archives: British fungi

An inedible dessert

17 Friday Oct 2025

Posted by sconzani in autumn, fungi

≈ Leave a comment

Tags

autumn colour, autumn fungi, British fungi, fungi on wood, Plums and custard, Tricholomopsis rutilans

When you read the name Plums and Custard, you might well think, as I always do, that it sound like a delicious dessert. If only!

In this instance, Plums and Custard is not your Friday night after-dinner delight but a fungus, also known as Tricholomopsis rutilans. The two parts of the name come from the cap, which starts off a rich plum colour but fades over time, and the custard yellow colour of the gills. And, no, you shouldn’t eat it, no matter how edible it looks.

Though you can’t always see this – and you certainly can’t in my photos, these fungi grow on wood, specifically decayed conifers, usually pine. They’re often found in large groups, and are common throughout the UK.

Like Loading...

Date waxcaps

15 Wednesday Oct 2025

Posted by sconzani in autumn, fungi

≈ 3 Comments

Tags

autumn fungi, British fungi, British waxcaps, Date waxcap, Date-coloured waxcap, Hygrocybe spadicea, rare waxcaps, waxcaps

During last Sunday’s local meander, I couldn’t help but notice how the recent rains have triggered autumnal fungi to begin fruiting and so, as I often find fungi very photogenic, I took rather a lot of photos. Of course, when I got home and thought I’d try to put names to those I’d photographed, I was reminded, as happens every year, of how tricky they can be to identify and of how many require microscopic analysis to determine their exact species. I, almost literally, threw my hands in the air, filed the photos in a temp folder, and didn’t look at them again until yesterday.

And then, when I went through the images more carefully and looked more closely, I realised that I might just have found something rather good, something I’d never seen before, something quite rare. I sought opinions from a couple of fungi experts and both agreed with me – you could’ve knocked me over with a feather … or a fungus!

These are Date waxcaps, also known as Date-coloured waxcaps, Hygrocybe spadicea. There are fewer than 100 British records of these beauties showing on iRecord but, luckily for those of us who live here, Wales has enjoyed the majority of those sightings. I understand they are found most years at Kenfig National Nature Reserve and, in the past, there have been one-off sightings in a couple of places around Cardiff but none since 2018.

Like most waxcap species, Hygrocybe spadicea grows mostly on unimproved calcareous grasslands but fungi don’t always follow what we humans think we know about them. Mine were growing on a road verge, under an Ash tree. Perhaps they have survived from the time when the area was unimproved grassland, before roads and houses were built all around them.

I revisited the site today, for a better look and to take more images. Amazingly, the waxcaps were more abundant than I had initially thought, with many still just emerging brown bumps barely visible amongst the grass. I’m still buzzing from the find.

Like Loading...

Slippery Jacks

03 Friday Oct 2025

Posted by sconzani in autumn, fungi

≈ Leave a comment

Tags

#FungiFriday, boletes, boletes under pine trees, British boletes, British fungi, Slippery jack, Suillus luteus

We’re currently in the grip of Storm Amy, our first named storm of the season; thus far, she’s just bringing constant heavy rain to us in south Wales but is forecast to bring strong winds later tonight and tomorrow. Still, after this summer’s drought, rain is welcome and, though I got drenched during my quick morning walk, I did find some of the positive effects of the rain: fungi.

I’m a bit out of practice identifying fungi – my enthusiasm diminished when I was confronted with the need to examine many finds with a microscope to identify them, and died completely when potential foragers wanted to know where my finds were located. For me, fungi should be left for small creatures to consume; humans can buy theirs at the supermarket or grow their own!

Anyhoo, I may be wrong but I think these boletes are the species Suillus luteus, also known as Slippery Jacks, a name that is probably derived from the viscous feel of their caps when wet. These were very slimy, and they fit the criteria listed in my guide book: growing under a pine tree, with yellow pores, and a yellowish stem with small brownish dots. They are edible … but don’t ask me where I found them.

Like Loading...

Fungus: Ergot

05 Friday Sep 2025

Posted by sconzani in fungi

≈ Leave a comment

Tags

#FungiFriday, British fungi, dangers of ergot, ergot, ergotism, fungal pathogens, fungi on cereals

I’m sure most of you will have heard of ergot poisoning or, at the very least, some of the notable times in history when humans have felt its effects. The Salem witch trials, which took place in Massachusetts in 1692-93 and where over 200 people were accused of witchcraft and 20 were executed, are probably the most well known; the unfortunate ‘witches’ are now thought to have been suffering from a form of ergotism. Through researching this post, I’ve also learned that ‘severe ergot epidemics in France between 900 AD and 1300 AD killed between 20,000 to 50,000 people’, and that ‘Julius Caesar lost legions of soldiers to ergot poisoning during his campaigns in Gaul’. And these are just a few of the more well-known examples; ergotism has been affecting humans since our ancestors first began eating grains and cereals.

Ergot (Claviceps purpurea) is a fungal pathogen that grows on many cereal species, including wheat, rye and barley. When ingested by humans and animals, the toxins contained in the fungus cause ergotism, the effects of which can include convulsions, hallucinations, gangrenous limbs, and, in severe cases, even death. These days, cereal producers and government regulatory bodies are very much aware of the dangers of ergot, and have precautionary measures in place to reduce its presence in food and feed to an absolute minimum. This is excellent news, as 2025 seems to be a good year, in terms of climate and environmental conditions, for the growth of the ergot fungus, if my finds in local fields are anything to go by. The small dark horn-shaped masses you can see in my photos indicate that these plants are infected with ergot; the masses, which replace the grains in cereals and grasses, are called sclerotia. So, with the subject of today’s post, it’s a case of look and be fascinated but definitely don’t be tempted to consume.

Amongst many other places, you can read more about ergot on the UK website of the Agriculture and Horticulture Development Board and, in the US, on the United States Forest Service agency website.

Like Loading...

Fungus: Cercospora depazeoides

29 Friday Aug 2025

Posted by sconzani in fungi, leaves, trees

≈ Leave a comment

Tags

British fungi, Cercospora depazeoides, fungal pathogen, fungus on Elder leaves, fungus on Elder trees

Given our recent, seemingly never-ending high temperatures, I’ve been surprised to find fungi flourishing, though they’ve not been the mushroom-shaped life forms you might expect when you read the word fungi. Take today’s fungus, for example. I didn’t immediately realise these very distinctive marks on the leaves of an Elder tree (Sambucus sp.) were caused by a fungus.

These marks are caused by Cercospora depazeoides, and it seems the fungus can be quite destructive. According to the European Forest Pests website, this fungal pathogen leads to ‘premature leaf drop and reduced photosynthesis’. When the spots merge, dominating the leaf surface, they cause defoliation, which can ‘weaken the plant, impacting its growth and fruit production’. Fortunately for those who harvest the berries to make Elderberry cordial, according to iRecord, this fungus has thus far not been recorded in many locations in the UK.

Like Loading...

Velvet shanks and a Wych elm

14 Friday Feb 2025

Posted by sconzani in fungi, insects, trees

≈ Leave a comment

Tags

British fungi, Flammulina velutipes, fungi on dead Wych elm, fungi on standing dead wood, Velvet shanks

The tree where I found these lush Velvet shanks growing was the Wych elm where, in October 2021, I found my first ever Elm zigzag sawfly larvae (Aproceros leucopoda), the first of this invasive species to be recorded in Wales (see my blog post Zorro comes to Wales). Now, that tree and several other young Wych elms growing in the margins of this field are all dead, presumably as a result of another invasive species, the fungus that causes Dutch elm disease (Ophiostoma novo-ulmi).

The Elm zigzag sawflies have spread well beyond this field now so won’t be affected by the tree’s death, and, though, presumably, the Dutch elm disease fungus dies when its host tree has died, it will continue to spread as it’s carried to new trees by Elm bark beetles (Scolytus species).

Yet, as with all living organisms, the death of one brings life-giving opportunities for others. So, though dead, the Wych elm is now providing sustenance to invertebrates that thrive in decaying wood and to the lovely Velvet shanks (Flammulina velutipes) that are specialists in devouring standing dead wood. Some of the clumps of Velvet shanks had already completed their lifecycle and were themselves rotting away but, as you can see in my photos below, more were oozing from the cracks in the tree’s trunk and branches.

Like Loading...

Fluted bird’s nest fungi

31 Friday Jan 2025

Posted by sconzani in fungi, winter

≈ 2 Comments

Tags

Bird's nest fungi, British fungi, Cyathus striatus, Fluted Bird's-nest fungi, woodland fungi

Almost seven and a half years have passed since I first saw these fungi, the perfectly named Fluted bird’s nest fungi (Cyathus striatus) (I blogged about that sighting in More Bird’s-nests with eggs! on 11 September 2017).

Since then, every time I’ve passed this location I’ve cast my eye over the various mossy logs and branches that lie adjacent to the path, hoping to spot them again. I saw nothing until my visit this past Wednesday and, to be honest, I’m amazed I was able to see them then, as the logs were draped in Bramble, through which I had to push my way to get closer. It was worth a couple of scratches though, to see these stunning fungi again.

With their shaggy looking exterior covering and the ribbed interior, they’re very distinctive and so easy to identify, which is always a bonus with fungi. They can be found (if you’re lucky!) growing on wood, usually within woodlands.

Like Loading...

Common grey disco, probably

24 Friday Jan 2025

Posted by sconzani in fungi, winter

≈ Leave a comment

Tags

British fungi, Common grey disco, cup fungi, disco fungi, fungi on rotting logs, Mollisia cinerea

I am very aware that cup fungi like these really need to be confirmed by microscopic examination of their spores but, sticking my neck out and assuming the most common species is most likely the one I’ve found, I’m going to say this is Common grey disco (Mollisia cinerea).

As they are tiny and grey and the white margin to their cups is often not particularly obvious, it is easy to overlook these little beauties. I wasn’t looking for fungi; I simply got lucky while poking about amongst some rotting logs in a local park.

Like Loading...

Elfcups, at last

19 Sunday Jan 2025

Posted by sconzani in fungi, winter

≈ Leave a comment

Tags

British fungi, Elfcups, Sarcoscypha coccinea, Scarlet elfcups, winter colour, winter fungi, woodland fungi

I have no wildflowers for you this Sunday – there are still flowers to be found but I’ve found nothing new or particularly interesting, so today’s colour comes in the form of fungi instead.

I’ve been searching for elfcups since early December, the time of year I’ve begun to see them in the past. I used to see them in abundance at Cwm George in Dinas Powys but I suspect it’s been too wet for them there this winter, with the little stream having flooded the area where the fungi grow.

I had also looked for them in Cardiff’s Bute Park in December but seen no sign. So, I was exceedingly happy, when I visited there last week, to find good numbers had popped up on mossy logs throughout the little area of woodland.

I know from having checked samples under a microscope several years ago that these are Scarlet rather than Ruby elfcups (Sarcoscypha coccinea), and they are gorgeous.

Like Loading...

Split gill fungi

30 Saturday Nov 2024

Posted by sconzani in fungi

≈ Leave a comment

Tags

British fungi, Schizophyllum commune, Split Gill, Split gill fungus

I don’t usually reference Wikipedia in my blogs but I rather like their description of today’s fungus: ‘The mushroom resembles undulating waves of tightly packed corals or a loose Chinese fan.’

241130 split gill fungi (1)

This is Split gill fungus (Schizophyllum commune), a species I’ve only seen once before, back in 2016, so I was both amazed and captivated when I found these growing on a huge old Oak tree in Cardiff’s Heath Park yesterday. From above, this fungus is a round hairy mass that doesn’t really look like a fungus at all. The magic happens when you look at the underside of the cap and see the stunning sculptural nature of the mushroom’s gills.

241130 split gill fungi (2)

Like Loading...
← Older posts
Newer posts →

About me

sconzani

sconzani

I'm a writer and photographer; researcher and blogger; birder and nature lover; countryside rambler and city strider; volunteer and biodiversity recorder.

View Full Profile →

Follow earthstar on WordPress.com

Enter your email address to follow this blog and receive notifications of new posts by email.

Recent blog posts

  • M is for mite December 18, 2025
  • L is for lepidopteran lifers December 17, 2025
  • K is for Keeled skimmers December 16, 2025
  • J is for Jersey tiger December 15, 2025
  • I is for Ichneumon December 14, 2025

From the archives

COPYRIGHT

Unless otherwise acknowledged, the text and photographs on this blog are my own and are subject to international copyright. Nothing may be downloaded or copied without my permission.

Fellow Earth Stars!

  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar
  • Unknown's avatar

Blog at WordPress.com.

Privacy & Cookies: This site uses cookies. By continuing to use this website, you agree to their use.
To find out more, including how to control cookies, see here: Cookie Policy
  • Subscribe Subscribed
    • earthstar
    • Join 667 other subscribers
    • Already have a WordPress.com account? Log in now.
    • earthstar
    • Subscribe Subscribed
    • Sign up
    • Log in
    • Report this content
    • View site in Reader
    • Manage subscriptions
    • Collapse this bar
 

Loading Comments...
 

You must be logged in to post a comment.

    %d