Search found 40 matches

by CJohnsonOHBR
Sun Mar 22, 2020 11:23 am
Forum: Lichens
Topic: Fertile Usnea subfloridana
Replies: 0
Views: 470

Fertile Usnea subfloridana

This specimen was collected from the same conifer plantation on North Uist at the same time as the fertile Parmotrema crinitum. Usnea subfloridana is widely distributed throughout the islands on both trees and fence posts, and when present is usually abundant. The presence of apothecia seems to be u...
by CJohnsonOHBR
Sun Mar 22, 2020 9:58 am
Forum: Lichens
Topic: Parmotrema crinitum apothecium
Replies: 2
Views: 349

Re: Parmotrema crinitum apothecium

Thank you Jenny, that is an interesting observation. With our mild oceanic climate and limited range of habitats (not many trees) not only is the range of species restricted but they are often unusual in their "behaviour" and choice of substrate. I often have to spend considerable time checking my i...
by CJohnsonOHBR
Wed Mar 18, 2020 12:13 pm
Forum: Lichens
Topic: Parmotrema crinitum apothecium
Replies: 2
Views: 349

Parmotrema crinitum apothecium

Last week we visited an abandoned trial conifer plantation on North Uist, Outer Hebrides, on an exposed, very wet moorland hillside (alt 102 m). One corner of the plantation had been hit by a severe gale at some time and there were a number of fallen, dead Sitka spruce. In this part of the world con...
by CJohnsonOHBR
Tue Feb 11, 2020 9:02 am
Forum: Lichens
Topic: A problematic Parmelia
Replies: 13
Views: 747

Re: A problematic Parmelia

When I saw the initial post I was tempted to suggest Xanthoparmelia conspersa, but as a novice was rather reluctant to make the suggestion. The comment about using a tiny drop of reagent for the spot test is important, and I would add that the C+ red reaction can be very fugitive with the red colour...
by CJohnsonOHBR
Fri Jan 17, 2020 9:32 am
Forum: General fungi discussion
Topic: FRDBI
Replies: 15
Views: 1937

Re: FRDBI

I maintain the database for biological records for the Outer Hebrides (VC 110) for Outer Hebrides Biological Recording, a small group of amateur naturalists who collect and collate biological records for the islands on a voluntary basis. We have a policy of making all our records (apart from a few s...
by CJohnsonOHBR
Tue Oct 01, 2019 8:02 am
Forum: Lichens
Topic: Ramalina europaea in Britain
Replies: 6
Views: 1918

Re: Ramalina europaea in Britain

Thank you for drawing our attention to this new information on Ramalina europaea and R. pollinaria s.lat. A severe shortage of trees makes it unlikely that I will find either, although there is a record of R. pollinaria dating back to 1960 from Stornoway on the island of Lewis. I will look carefully...
by CJohnsonOHBR
Fri Mar 15, 2019 7:37 pm
Forum: Lichens
Topic: Lichenicolous Fungi UK Species List
Replies: 2
Views: 811

Re: Lichenicolous Fungi UK Species List

Thank you Janet.
It is not really urgent, I'm just trying to keep my sources up-to-date.

Christine
by CJohnsonOHBR
Thu Mar 14, 2019 1:36 pm
Forum: Lichens
Topic: Lichenicolous Fungi UK Species List
Replies: 2
Views: 811

Lichenicolous Fungi UK Species List

I am restructuring the [url=http://www.outerhebridesfungi.co.uk/]Fungi of the Outer Hebrides[url] website to incorporate new sections on lichenicolous fungi and lichens. I am aware of Hawksworth's publication The lichenicolous fungi of Great Britain and Ireland: an overview and annotated checklist p...
by CJohnsonOHBR
Wed Feb 06, 2019 10:58 am
Forum: Lichens
Topic: Cladonia macilenta or polydactyla
Replies: 3
Views: 881

Re: Cladonia macilenta or polydactyla

Thank you Neil and Jenny for the very helpful expert advice, which is greatly appreciated. You are right about ignoring immature Cladonia but as the woodland in Stornoway is the only opportunity we get to look at lichens and fungi in this type of habitat we tend to make the most of our visits and I ...
by CJohnsonOHBR
Tue Feb 05, 2019 4:34 pm
Forum: Lichens
Topic: Cladonia macilenta or polydactyla
Replies: 3
Views: 881

Cladonia macilenta or polydactyla

I always have trouble trying to distinguish Cladonia macilenta from polydactyla , when the podetia on polydactyla are under-developed and the apothecia on macilenta are similarly poorly developed. This is not helped by variations in the descriptions of the soredia on the podetia. Dobson describes ma...
by CJohnsonOHBR
Fri Jan 13, 2017 4:56 pm
Forum: General fungi discussion
Topic: Recording finds from the field
Replies: 5
Views: 3253

Re: Recording finds from the field

Sorry for the delay. The geographical area of your sample is set by the grid reference, so if you have a GPS you can use either an 8 or 10 fig grid reference which will pinpoint your sample to with 10m or less. You could then group all your samples together into a survey for a particular location. S...
by CJohnsonOHBR
Sat Jan 07, 2017 3:04 pm
Forum: General fungi discussion
Topic: Recording finds from the field
Replies: 5
Views: 3253

Re: Recording finds from the field

Most of the biological recording groups currently use Recorder 6. The learning curve may be a little steeper than Mapmate but it is very flexible and once set-up easy to input data. There is a one-off price for the software (about £30) with no annual fees for up-dates. The support via the NBN forum ...