Search found 134 matches

by JennyS
Sun Mar 22, 2020 3:26 pm
Forum: Lichens
Topic: Possibly Byssoloma marginatum?
Replies: 5
Views: 690

Re: Possibly Byssoloma marginatum?

Hi Neil - I've just thought of a very embarrassing possibility!
Might this just be Lecania naegelii as looking back at old micrographs the same bluish colouring is present in many of them?
by JennyS
Sat Mar 21, 2020 4:30 pm
Forum: Lichens
Topic: Possibly Byssoloma marginatum?
Replies: 5
Views: 690

Re: Possibly Byssoloma marginatum?

Thanks for the reply Neil - and yes both thallus and habitat don't seem right. I checked Fellhaneropsis myrtillicola but discounted it as the spores of mine were (1-)3 septate and 12-15 x 4-5 µm rather than 3(-5) septate 16-28(-34) x 3-4 µm (LGB&I). I've a specimen I could post to you if you'd be wi...
by JennyS
Sat Mar 21, 2020 12:11 pm
Forum: Lichens
Topic: Possibly Byssoloma marginatum?
Replies: 5
Views: 690

Possibly Byssoloma marginatum?

Dorset, on a fallen twig collected in a small dampish patch of mixed woodland - might this be Byssoloma marginatum or am I missing something obvious? Two very small, brown apothecia with pale margins and a bluish colouration visible in section. Spores were mainly 3-septate (a few 1-septate), 12-15 x...
by JennyS
Fri Mar 20, 2020 12:30 pm
Forum: Lichens
Topic: Parmotrema crinitum apothecium
Replies: 2
Views: 518

Re: Parmotrema crinitum apothecium

Hi Chris, very interesting to read your post as I've seen fertile Parmotrema crinitum in SW Ireland. During 5 years recording there I frequently found fertile specimens of foliose species on which, according to the literature, apothecia are very rare and it led me to wonder if the likelihood of fert...
by JennyS
Fri Jan 24, 2020 8:22 pm
Forum: Lichens
Topic: Very odd Xanthoria
Replies: 5
Views: 1413

Re: Very odd Xanthoria

Thanks for the suggestion Neil - but wouldn't Birch twigs be too acidic a substrate and surely the outer lobes are wrong for a corticolous X. calcicola?
Forgot to mention in first post but the thallus is only 1.5 cm

zz Xanthoria 200122 031.jpg
zz Xanthoria 200122 034.jpg
by JennyS
Thu Jan 23, 2020 9:05 pm
Forum: Lichens
Topic: Very odd Xanthoria
Replies: 5
Views: 1413

Very odd Xanthoria

A Xanthoria from Dorset yesterday in the axil of a shaded Birch twig, no rhizines but (among the lower side grot) very occasional hapters. X. polycarpa seems closest but substrate too acidic and the thallus is very nodulose with few apothecia. Thoughts and comments appreciated as I'm hanging onto th...
by JennyS
Thu Jan 23, 2020 8:52 pm
Forum: Lichens
Topic: Thank you to Adam
Replies: 4
Views: 955

Re: Thank you to Adam

Yes, I'll echo the thanks - and post some of your queries up Adam as peering at lichens is a good way to get through this time of year when there's not much else around!
by JennyS
Sat Sep 28, 2019 4:35 pm
Forum: Lichens
Topic: Parmotrema robustum?
Replies: 2
Views: 898

Re: Parmotrema robustum?

Thanks Neil, I just thought it worth asking as those thallii just looked larger and a bit different but no specimen or measurements
by JennyS
Tue Sep 24, 2019 7:57 pm
Forum: Lichens
Topic: Mixtoconidium canariense on Ramalina lacera?
Replies: 5
Views: 1665

Re: Mixtoconidium canariense on Ramalina lacera?

Just heard back from Javier Etayo - "yes, no doubt, it is Mixtoconidium insidens, really a good finding".

I've a couple specimens so I'd like to send one to Kew (who should I contact?) and one to Howard Fox at the Botanic Gardens, Dublin
by JennyS
Tue Sep 24, 2019 11:15 am
Forum: Lichens
Topic: Parmotrema robustum?
Replies: 2
Views: 898

Parmotrema robustum?

Four different thallii from Co. Limerick, Ireland on a wooden table and chairs that had been in a small orchard for 30+ years - but I had no books or chemicals with me and unfortunately didn't collect specimens! Could they be Parmotrema robustum? w Parmotrema Q1 1909 Q1.jpg w Parmotrema Q2 1909 Q2.j...
by JennyS
Mon Sep 23, 2019 8:28 pm
Forum: Lichens
Topic: Mixtoconidium canariense on Ramalina lacera?
Replies: 5
Views: 1665

Re: Mixtoconidium canariense on Ramalina lacera?

Many thanks for the reply Neil. Those conidia were examined under the microscope in a drop of K so I've just done another in water but similar measurements - 11-15 x 3.5-5 um most c12.5 x 5um, microconidia present 5-6 x 1. The conidiomata size in the linked paper is much larger than that given in th...
by JennyS
Thu Sep 19, 2019 11:38 am
Forum: Lichens
Topic: Mixtoconidium canariense on Ramalina lacera?
Replies: 5
Views: 1665

Mixtoconidium canariense on Ramalina lacera?

Lichenicolous on several Ramalina lacera thallii on a Horse Chestnut in Co. Limerick, Ireland. Conidia abundant, 1-septate 12.5-15 x 5 µm. Is this Mixtoconidium canariense? From the lichenicolous draft keys: "Conidia 1-septate, ellipsoid, often slightly constricted at the septum, 10-13 x 3.5-4(-4.5)...