Search found 82 matches

by Paul Cannon
Tue Apr 06, 2021 3:22 pm
Forum: Ascomycetes
Topic: Capronia pulcherrima
Replies: 3
Views: 232

Re: Capronia pulcherrima

Congratulations on the milestone. The question is, is the rate of discovery of new species for Yorkshire greater than your compilation rate?
Looking forward to a book (or something)...

Paul
by Paul Cannon
Sun Mar 07, 2021 3:43 pm
Forum: Lichens
Topic: Unusual lichenicolous fungus on Lecidella elaeochroma
Replies: 2
Views: 216

Re: Unusual lichenicolous fungus on Lecidella elaeochroma

Hi Gustav This looks like a Fusarium to me, it's difficult to see from your images but the little asymmetrical nipple-like extension at the base of the conidia is diagnostic. The bad news is that Fusarium species are unlikely to be strongly host-specific, and it may be a chance infection from a spec...
by Paul Cannon
Fri Feb 19, 2021 10:17 am
Forum: Lichens
Topic: Another (beautiful) but unknown... ID help please
Replies: 4
Views: 336

Re: Another (beautiful) but unknown... ID help please

Just to add that the cream parts of the thallus are dead, hopefully that doesn't change your perspective! It could be just old age, but you often get tiny lichenicolous fungi as necrotrophs (these kill the thallus and eat the remains...)

Paul
by Paul Cannon
Thu Feb 18, 2021 9:59 am
Forum: Lichens
Topic: Ramalina?
Replies: 6
Views: 307

Re: Ramalina?

That's quite a monument! It's difficult to tell from the image, but it would be very surprising if Ramalina siiquosa wasn't present in quantity, and some of the colonies look a little more green than others. Now you have an excuse to go back...

Best wishes
Paul
by Paul Cannon
Tue Feb 16, 2021 5:37 pm
Forum: Lichens
Topic: Ramalina?
Replies: 6
Views: 307

Re: Ramalina?

No, this is much more exciting (or at least it would be if you lived in Britain). It's Roccella fuciformis . I'm not sure of the distribution in France (you know the excellent Lichens marins site?) but in Britain it has a strong south-west maritime distribution (along with a very surprising recent r...
by Paul Cannon
Mon Feb 08, 2021 6:01 pm
Forum: Lichens
Topic: Ophioparma ventosa pycnidia or LF?
Replies: 3
Views: 239

Re: Ophioparma ventosa pycnidia or LF?

Just to add that after looking at Chris's material I'm now less sure that this and the earlier record from Dunbartonshire are Taeniolella pertusariicola , but they are certainly the same species. More on that later, once we can find some more abundant material. I have seen something like the "pycnid...
by Paul Cannon
Fri Feb 05, 2021 10:53 am
Forum: Lichens
Topic: LGBI3 - Pannariaceae
Replies: 0
Views: 702

LGBI3 - Pannariaceae

The next volume of LGBI3 has been published on the BLS website - free download at https://www.britishlichensociety.org.uk/content/lgbi3

Best wishes
Paul
Pannariaceae cover.jpg
by Paul Cannon
Tue Jan 26, 2021 2:54 pm
Forum: Lichens
Topic: Shetland Lichens. A journey...
Replies: 34
Views: 2370

Re: Shetland Lichens. A journey...

Hello Jon You will quickly find that wet lichens look rather different to dry ones, and most of the library images are of dry specimens. They are easier to identify in the latter condition, but that's not always easy with the sea coming up and the rain coming down. Your second image is a case in poi...
by Paul Cannon
Mon Jan 25, 2021 11:47 am
Forum: Lichens
Topic: Gall-inducing lichenicolous fungus on Peltigera
Replies: 4
Views: 273

Re: Gall-inducing lichenicolous fungus on Peltigera

Hello Gustav I think this probably is Corticifraga fuckelii , the apothecia are often pale in this species. I have seen C. fuckelii inhabiting swellings on Peltigera species, although another possible explanation could be that the host lichen itself may have a bullate thallus and the parasite accent...
by Paul Cannon
Mon Jan 18, 2021 2:21 pm
Forum: Lichens
Topic: A distinctive lichen with multi-spored asci. What on Earth is it?
Replies: 7
Views: 754

Re: A distinctive lichen with multi-spored asci. What on Earth is it?

All this is really interesting. It would not be at all surprising to see range extensions for species bearing in mind the pace at which we are changing the environment, so it could well be a recent colonizer rather than a relict. I've taken some info from this thread to add to the LGBI3 account of S...
by Paul Cannon
Mon Jan 18, 2021 10:32 am
Forum: Lichens
Topic: Nesolechia oxyspora
Replies: 5
Views: 673

Re: Nesolechia oxyspora

The ID looks spot-on to me too, nice images as always. I found records from St Kilda and the Shiants, so this may be the first "mainland" record. The phylogeny says that this species belongs with Punctelia in the Parmeliaceae, but I think we'll pass over that for the new "flora".
Best wishes
Paul
by Paul Cannon
Sat Jan 16, 2021 2:33 pm
Forum: Lichens
Topic: Lichens by the sea side
Replies: 2
Views: 530

Lichens by the sea side

Continuing my search through oddments collected on Anglesey in 2019, I found this convenient dual specimen. On the left (with pale cream thalline margins) is the reasonably common Myriolecis ( Lecanora ) fugiens , and on the right (with the yellow thalline margins) is M. massei . Myriolecis is a rec...