Search found 314 matches

by Chris Johnson
Mon Jan 21, 2019 7:57 pm
Forum: Fungi on miscellaneous substrates (not soil or wood)
Topic: Penicillium?
Replies: 2
Views: 15

Re: Penicillium?

Hi Chris Sorry, not much help Chris ... but always erudite and often amusing .... I should have time to post on AscoFrance tomorrow. The lady in question does a tremendous amount of work on washed-up corpses of cetaceans so when she mentioned this 'growth' on ambergris, I was quite excited. Then I ...
by Chris Johnson
Mon Jan 21, 2019 2:23 pm
Forum: Fungi on miscellaneous substrates (not soil or wood)
Topic: Penicillium?
Replies: 2
Views: 15

Penicillium?

This was 'generously' given to me by someone working on beached cetaceans. It was growing on ambergris, removed from a Cuvier's beaked whale' skeleton. It had quite a depth of mould when I received it. I know longer have it, by the way, as it stank! Conidia: 5.3-8.9 x 3.6-5.6 µm The final image in C...
by Chris Johnson
Mon Jan 21, 2019 8:32 am
Forum: Lichens
Topic: A new lichen for GBI?
Replies: 12
Views: 192

Re: A new lichen for GBI?

Welcome to the forum, Maxine. Look forward to your posts.

Regards, Chris
by Chris Johnson
Sun Jan 20, 2019 4:46 pm
Forum: Lichens
Topic: Coastal Crustose
Replies: 2
Views: 27

Re: Coastal Crustose

Hi Paul This is me getting my eye in ... who said I was short sighted? DSC_3918.jpg A. smaragdula was a good call. Both C and K were negative but Pd was positive, yellow. Smith, et al. note that K can, rarely, be negative. Also pleased to know about the spore fragmentation. Thanks again and regards,...
by Chris Johnson
Sun Jan 20, 2019 3:28 pm
Forum: Lichens
Topic: A new lichen for GBI?
Replies: 12
Views: 192

Re: A new lichen for GBI?

Thank you Mark for taking that much trouble, and to Paul for the download.
I tried ordering a copy from Italy but the e-mail is suspect.
Best wishes,
Chris
by Chris Johnson
Sun Jan 20, 2019 3:08 pm
Forum: Lichens
Topic: White Crustose Lichen
Replies: 6
Views: 61

Re: White Crustose Lichen

Definitely a lichen thallus, I'll do some tests on my next visit.

I hadn't considered Opegrapha as I thought the ascocarps were all lirellate.

With thanks, Chris
by Chris Johnson
Sun Jan 20, 2019 12:24 pm
Forum: Lichens
Topic: Coastal Crustose
Replies: 2
Views: 27

Coastal Crustose

On a siliceous pebble that was part of an Atlantic coastal defence revetement, above the slash-zone except for winter storms. Thallus superficial, a light rust colour. No spores found but thousands of conidia from a 'drop'. Size: 3.6-4.9 x 1.5-2.2 µm Not got close to this one so any pointers welcome...
by Chris Johnson
Sun Jan 20, 2019 8:43 am
Forum: Lichens
Topic: A new lichen for GBI?
Replies: 12
Views: 192

Re: A new lichen for GBI?

Mark

Watching with interest even though the debate is well above my pay scale.

However, I am interested in Nimis & Martello (2004) Keys to the lichens of Italy: is this available in the UK and is it in English?

Many thanks, Chris
by Chris Johnson
Sun Jan 20, 2019 8:32 am
Forum: Lichens
Topic: White Crustose Lichen
Replies: 6
Views: 61

Re: White Crustose Lichen

JennyS wrote:
Sat Jan 19, 2019 5:53 pm
Did you check the thallus for K, C and KC reactions as if not would be worth doing when you go back - and please keep on posting lichen photos and queries!
No, I didn't. Christine has the testing kit. We will take it next time.

Chris
by Chris Johnson
Sat Jan 19, 2019 5:26 pm
Forum: Lichens
Topic: White Crustose Lichen
Replies: 6
Views: 61

Re: White Crustose Lichen

Thanks Jenny, that sounds a real posibility. The small fragment I managed to chip off was barren. I'll try and get back soon and have another look although it sound s as if mature apothecia are scarce. This is a bonus as I wasn't expecting much; more a bid to keep this lichen section going. I'll pos...
by Chris Johnson
Fri Jan 18, 2019 12:30 pm
Forum: Lichens
Topic: White Crustose Lichen
Replies: 6
Views: 61

White Crustose Lichen

This 'snow-white' lichen was found on a vertical face of granitic rock close to a seepage.

It was the only patch and I failed to get anything useful to sample. With its distinct fragmented apothecia, I thought it might be identifiable, but no joy.

Does anyone recognise it?

Thanks, Chris
by Chris Johnson
Thu Jan 17, 2019 11:05 am
Forum: Fungi ID requests (post here if you aren't sure what type of fungus you've found)
Topic: Possible resupinate such as Peniophora sp
Replies: 13
Views: 123

Re: Possible resupinate such as Peniophora sp

I'm not at all convinced by the Peltigera theory. The habitat seems unlikely and those are totally unlike any rhizines I have ever seen. Those are hairs (in the mycological sense), far too thin and separated to be rhizines - this is what I would expect for the latter: https://www.flickr.com/photos/...