Search found 159 matches

by Neil Sanderson
Sun Feb 03, 2019 11:01 pm
Forum: Lichens
Topic: Pd/UV Spot Tests
Replies: 4
Views: 1348

Pd/UV Spot Tests

Mark Have you tried this one? Taking a break from DIY, just before it was dark, I had quick look around a local New Forest wood, French's Wood, which is part of the Shave Wood complex, an exceptionally richen rich old growth Beech - Oak pasture woodland. One suppressed Oak had a bit sheet of what lo...
by Neil Sanderson
Sun Feb 03, 2019 9:18 pm
Forum: Lichens
Topic: Opegrapha?
Replies: 6
Views: 1546

Re: Opegrapha?

Chris

Looking at http://fungi.myspecies.info/taxonomy/te ... scriptions, it does seem more like H angustatum but the text does imply they area not always easily separable.

Neil
by Neil Sanderson
Sun Feb 03, 2019 8:47 pm
Forum: Lichens
Topic: Opegrapha?
Replies: 6
Views: 1546

Re: Opegrapha?

The end cells of the spores appear a bit paler than the others which would suggest Hysterium pulicare, but I do not know these fungi well, so not sure how pale the the end cells need to be.

All the best

Neil
by Neil Sanderson
Fri Feb 01, 2019 10:50 am
Forum: Lichens
Topic: Phaeographis smithii?
Replies: 6
Views: 1745

Re: Phaeographis smithii?

Wellcome Ishpi

Neil
by Neil Sanderson
Fri Feb 01, 2019 10:49 am
Forum: Lichens
Topic: Cladonia ramulosa?
Replies: 4
Views: 2864

Re: Cladonia ramulosa?

Juliet The forked podetia is probably damaged. Most Cladonia descriptions are of well grown material and break down in the face of the reality of scrappy and broken material. The podetia without cups just looks like normal Cladonia coniocraea to me! The classic error perpetuated by idealised Cladoni...
by Neil Sanderson
Wed Jan 30, 2019 11:45 pm
Forum: Lichens
Topic: Cladonia ramulosa?
Replies: 4
Views: 2864

Re: Cladonia ramulosa?

Steve No Cladonia ramulosa (scruffy as we call it affectionately in the New Forest) very definitively does not have a strongly sorediate podetia surface. The LGBI2 gives this description: Podetia ... surface variously squamulose, in part granular-scabrid or at times partially or almost entirely deco...
by Neil Sanderson
Wed Jan 30, 2019 11:25 pm
Forum: Lichens
Topic: Unusual Phyllopsora on Beech in the New Forest
Replies: 1
Views: 780

Re: Unusual Phyllopsora on Beech in the New Forest

On a morning dog walk today I found some colonising Phyllopsora rosei on an old Oak at Kings Hat, Hollands Wood, which was an interesting comparison to the odd material I found a few days ago in Busketts wood. This was much more like I remember typical Phyllopsora rosei , with small rounded granules...
by Neil Sanderson
Mon Jan 28, 2019 9:42 pm
Forum: Lichens
Topic: Unusual Phyllopsora on Beech in the New Forest
Replies: 1
Views: 780

Unusual Phyllopsora on Beech in the New Forest

Checking on some past conservation work in Busketts Wood in the New Forest, where young invading Holly into an old growth Beech pasture woodland was coppiced and pollarded more than 10 years ago I noticed what was clearly a Phyllopsora but looked odd. The grey-blue-green pubescent thallus was simila...
by Neil Sanderson
Mon Jan 14, 2019 10:32 pm
Forum: Lichens
Topic: Scoliciosporum Species
Replies: 1
Views: 808

Re: Scoliciosporum Species

Oops. After a suggestion elsewhere, I check again and it has very small algae (c7µm), so is actually just a very damaged poorly grown Micarea. Comes of trying to identify absolutely everything, including scrappy stuff best ignored!

Neil
by Neil Sanderson
Mon Jan 14, 2019 9:28 pm
Forum: Lichens
Topic: Collema flaccidum
Replies: 2
Views: 1025

Re: Collema flaccidum

Chris It is likely to be Collema flaccidum , but to confirm, you should see the young globose isidia, visible in your pictures, becoming flattened and squamule like as they age, see http://fungi.myspecies.info/taxonomy/term/4623/media . The alternative would be Collema subflaccidum , where the isidi...
by Neil Sanderson
Mon Jan 14, 2019 7:59 pm
Forum: Lichens
Topic: Scoliciosporum Species
Replies: 1
Views: 808

Scoliciosporum Species

I am now tackling one of the final specimens I need to to determine which was collected during an intensive survey of a hectare of old growth Beech in the New Forest with Jan Vondrak last Spetember (my personal list from this 1ha plot is now on 176 epiphytic taxa). This specimen is a bit perplexing,...
by Neil Sanderson
Fri Jan 11, 2019 9:46 am
Forum: Lichens
Topic: Bacidia squamellosa with Pycnidia
Replies: 4
Views: 1349

Re: Bacidia squamellosa with Pycnidia

Chris Thanks The Lichens of Great Britain and Ireland (LGBI) gives the range for Micarea prasina as 4-7 μm and for Bacidia squamellosa 5-12 μm, so it is finding larger diameter algae that clinches in identification. Micarea algae are distinctively small, to quote the LGBI: Photobiont green, cells us...