Search found 7 matches

by Neil Sanderson
Mon Jan 14, 2019 10:32 pm
Forum: Lichens
Topic: Scoliciosporum Species
Replies: 1
Views: 27

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: 67

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: 27

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: 88

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...
by Neil Sanderson
Thu Jan 10, 2019 9:27 pm
Forum: Lichens
Topic: Bacidia squamellosa with Pycnidia
Replies: 4
Views: 88

Bacidia squamellosa with Pycnidia

All One nice find from the Wessex lichen Group’s New Year meeting to the upper end of Stricknage Wood, New Forest, was Bacidia squamellosa with pycnidia. I find this species rather difficult to pick out in the field. The coralloid dissected thallus are very like Micarea prasina s. lat. in the field....
by Neil Sanderson
Thu Jan 10, 2019 8:08 pm
Forum: Lichens
Topic: Phaeographis smithii?
Replies: 1
Views: 77

Re: Phaeographis smithii?

Paul I think your and Mark's, thalli are simply young thalli. The picture on fungi/myspecies from Melbury is an old, somewhat worn thallus (slug eaten a bit?), hence the different appearance (I note this actually my picture from British Lichens website!, that is fine). Phaeographis smithii appears t...
by Neil Sanderson
Wed Jan 09, 2019 8:51 pm
Forum: Lichens
Topic: A new lichen for GBI?
Replies: 12
Views: 219

Re: A new lichen for GBI?

Paul I am mostly confused by these Placidium et al crusts, so am not much help, however, I am hoping the new Nordic Lichen Flora Vol 6 will help me get up to speed with them eventually. Have you seen https://www.researchgate.net/publication/233610024_The_genus_Placidiopsis_in_the_Iberian_Peninsula_a...