Search found 159 matches

by Neil Sanderson
Wed Mar 25, 2020 12:10 pm
Forum: Lichens
Topic: Anisomeridium-confusion
Replies: 2
Views: 863

Re: Anisomeridium-confusion

Hi Jonas, welcome to the forum. Have you tested the pycnidia walls with K, they should be K + olive green far all Anisomeridium species, if the typical ones have K + olive-green walls and the odd ones are not then you would have Anisomeridium polypori with some pycidia of some other fungi associated...
by Neil Sanderson
Sun Mar 22, 2020 4:10 pm
Forum: Lichens
Topic: Possibly Byssoloma marginatum?
Replies: 5
Views: 909

Re: Possibly Byssoloma marginatum?

Jenny I was wondering about the blue-green epithecium, it did not really match either of the candidates. The LGBI for Lecania naegelii : epithecium colourless or with granules which are pale grey-brown, to blue-green I have not seen it with that dark a blue-green epithecium before but that would mat...
by Neil Sanderson
Sat Mar 21, 2020 7:59 pm
Forum: Lichens
Topic: Odd Micarea from my First Social Distancing Lichen Trip
Replies: 5
Views: 843

Re: Odd Micarea from my First Social Distancing Lichen Trip

Interesting, certainly the case with some, although in the case of Scoliciosporum pruinosum , I think recent under recording might be a factor in Hampshire, we will see with the revived Hampshire lichen survey. Andy and I refound it in SU61 in a large wood in the Hampshire Basin, recently, but perha...
by Neil Sanderson
Sat Mar 21, 2020 7:26 pm
Forum: Lichens
Topic: Possibly Byssoloma marginatum?
Replies: 5
Views: 909

Re: Possibly Byssoloma marginatum?

Jenny Happy to have a look. I have a picture of a cross section of Byssoloma marginatum from Frame Wood, New Forest: 2018-09-17-13.jpg Byssoloma marginatum apothecia cross section in water One distinctive thing are the projecting hyphae around the base of the apothecia in Byssoloma marginatum , not ...
by Neil Sanderson
Sat Mar 21, 2020 12:29 pm
Forum: Lichens
Topic: Possibly Byssoloma marginatum?
Replies: 5
Views: 909

Re: Possibly Byssoloma marginatum?

Jenny If the green verrucose thallus is it’s thallus then unlikely, Byssoloma marginatum thallus is unusually very thin. The habitat is also wrong, Byssoloma marginatum is an oceanic woodland species mainly found on trunks. Have you checked for Fellhaneropsis myrtillicola ? This would have a thallus...
by Neil Sanderson
Thu Mar 19, 2020 10:47 am
Forum: Lichens
Topic: K/UV reaction
Replies: 9
Views: 1116

Re: K/UV reaction

See https://www.fungi.org.uk/viewtopic.php?f=16&t=2519&p=12394&hilit=calicium#p11677 . Both Calicium hyperelloides and Calicium lenticulare have K/UV + yellow fluorescence, but if I remember rightly this is visible when still wet. Neither have atranorin, with Calicium lenticulare with Placodiolic an...
by Neil Sanderson
Thu Mar 19, 2020 10:31 am
Forum: Lichens
Topic: Odd Micarea from my First Social Distancing Lichen Trip
Replies: 5
Views: 843

Re: Odd Micarea from my First Social Distancing Lichen Trip

Mark Ah yes you are probably right, in the sterile key I followed 31 at couplet 30. My algal cells were cells 4 – 5µm diam and globose: 30(1) Photobiont micareoid, cells 4-7 μm, ± globose, thin-walled ......................................................... 31 Photobiont chlorococcoid, cells mostly...
by Neil Sanderson
Thu Mar 19, 2020 7:32 am
Forum: Lichens
Topic: Request for Material of Sticta canariensis
Replies: 0
Views: 1250

Request for Material of Sticta canariensis

Due to the coronavirus pandemic, the BLS has cancelled the field meeting to Harris in May. Prof. Dr. Silke Werth, of the University of Munich had been due to attend and had hoped to collect material of Sticta canariensis (either of the morphs, Sticta canariensis , canariensis morph or Sticta canarie...
by Neil Sanderson
Wed Mar 18, 2020 10:04 pm
Forum: Lichens
Topic: Odd Micarea from my First Social Distancing Lichen Trip
Replies: 5
Views: 843

Odd Micarea from my First Social Distancing Lichen Trip

Last Friday afternoon I had my first experience of lichening in the shadow of the carona virus. I went for a walk on the New Forest with Andy Cross and one of my dogs. Walking at least two meters apart and pointing and stepping away from interesting finds. We went to Wormstall Wood in the south of B...
by Neil Sanderson
Mon Mar 16, 2020 7:56 pm
Forum: Lichens
Topic: K/UV reaction
Replies: 9
Views: 1116

Re: K/UV reaction

Dave

The K/UV + bright neon yellow spot test is a good indication of atanorin, especially if the spot test gives the best results when dry. Not tested to exhaustion, so use with caution. Fine if you expect atanorin, but other K spot tests can be enhanced by UV too.

Neil
by Neil Sanderson
Wed Mar 11, 2020 12:23 pm
Forum: Lichens
Topic: Weddellomyces on Aspicilia?
Replies: 5
Views: 663

Re: Weddellomyces on Aspicilia?

Paul & Juliet

The link does not lead directly to the paper, you want Mycotaxon Vol 53, page 180

Neil
by Neil Sanderson
Tue Feb 25, 2020 10:34 am
Forum: Lichens
Topic: Taeniolella arthoniae in the New Forest, New to Britain
Replies: 4
Views: 757

Re: Taeniolella arthoniae in the New Forest, New to Britain

Paul Vince has had T. delicata from Lecanactis abietina in the New Forest and this species seems very catholic. Looking at your pictures, however, I would agree that your Horner specimen could very well be Taeniolella arthoniae , but it needs a wider view of the intact conidiophores, or more mature ...