Fungi Friday 15th January 2021
This week it’s a continuation of #LichenJanuary. It’s a time of year when winter is at its deepest, more grey than snowy in southern England. In towns and cities lichens come to the fore. If you’re looking for something to take your mind of the wider world this month, lichens are your friend.
The other day I had the idea to post on Twitter asking for people to share their lichen photos from around the world. In a time when we are unable to travel anywhere and people are suffering, it felt like a positive thing to do:
After a little while, people from all over the world began to post their photos. Over night UK time there were a series of posts from Japanese lichen lovers. It is one of the most incredible things about social media and the Internet, that someone can post in Japanese and the software does a decent job of translating it. A couple of the Japanese tweets included Cladonia lichens, what in English we generally refer to as cup lichens:
And here someone posted: ‘my home lichen’:
My interest in lichen originates from my Irish roots. There is a track at the foot of the Ox Mountains in Mayo, western Ireland, that I have walked many times with my family. It is surrounded by old boulders and bogs, all drenched in lichens. Some of the species I got to know there were reindeer lichens, Cladonia portenosa.
Reindeer lichens seem to get their name from the fact their structure is like reindeer antlers. They are also known to be grazed by reindeer where they grow in Scandinavia. I believe they are also used as for dyeing cloth and as a delicacy in posh restaurants.
One Cladonia that catches the eye is Cladonia floerkeana, also known as devil’s matchstick lichen. Seriously, anything red is devilish?! I like the name lipstick lichens, and I will be calling them that.
These lichens were growing on top of the Ox Mountains (what are really hills when it comes to height). They are covered by boglands on the plateau. Mayo is a place with very high levels of annual rainfall, making it perfect for these moisture dependent organisms.
The lipstick lichens were growing on top of a boulder, while others could be found growing among vegetation in the bogs. I can’t wait to go back there and see what I can find. Here is an image from a few years earlier, when I didn’t own a macro lens. It gives a sense of their habitat.
This is the land of the lichen. In the distance you can see Nephin, a mountain which has just had a new book written about it.
There is a farm near to where I live now in Sussex that has its own populations of cup lichens. I have noticed in recent years how fencing posts which are not treated with chemicals can important habitats for lichen, moss and fungi. The cup lichens above are very happy with their current abode.
These lichens seem to be noticed more than any other. They look splendid holding onto droplets of water in their cups, and their very nature of reaching upwards draws them to our attention. They are the quintessential ‘pixie’ cup lichens.
Thanks for reading.
Next week: Dartmoor
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