Search found 130 matches

by JennyS
Fri Jan 24, 2020 8:22 pm
Forum: Lichens
Topic: Very odd Xanthoria
Replies: 4
Views: 80

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: 4
Views: 80

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: 94

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: 638

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: 1248

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: 638

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: 1248

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: 1248

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)...
by JennyS
Thu Jun 27, 2019 10:26 pm
Forum: Lichens
Topic: Physcia clementei?
Replies: 2
Views: 881

Re: Physcia clementei?

Did you compare your specimen with some of the photographs of Physcia clementei on the Lichens marins website as many of those have similar lobes?
http://www.lichensmaritimes.org/index.p ... 69&lang=en
by JennyS
Mon Jun 10, 2019 6:53 pm
Forum: Rusts, Smuts, and Mildews
Topic: Oomycete - Peronospora chenopodii-polyspermi
Replies: 2
Views: 1083

Oomycete - Peronospora chenopodii-polyspermi

I hope its ok to post an Oomycete - Peronospora chenopodii-polyspermi causing noticeable yellow patches on leaves of Chenopodium polyspernum in Dorset yesterday. No idea what the distribution might be as there are no records on the NBN but I doubt if that means much! z Peronospora chenopodii-polyspe...
by JennyS
Mon Jun 10, 2019 6:30 pm
Forum: Ascomycetes
Topic: Two species of Peziza on compost?
Replies: 2
Views: 946

Re: Two species of Peziza on compost?

Thanks Chris - my notifications must have gone awol as I hadn't realised you'd replied. It was compost from municipal green so heaven only knows what was in the mix!
by JennyS
Tue May 28, 2019 8:51 pm
Forum: Ascomycetes
Topic: Two species of Peziza on compost?
Replies: 2
Views: 946

Two species of Peziza on compost?

These seem to be two different Peziza's found on woody compost - tentatively are they P. varia and P. vesiculosa? The first (?varia) had spores 20-22 x 12 µm, the second smaller ones (?vesiculosa) spores 16-17 x 11 µm. It was difficult to see whether or not the asci tips of the first were KI +blue, ...