Search found 111 matches

by JennyS
Thu Mar 21, 2019 11:48 pm
Forum: Myxomycetes (slime moulds)
Topic: Myxo on Oak leaf
Replies: 0
Views: 13

Myxo on Oak leaf

Came across this myxo on an oak leaf today and wondered whether identification (at least to genus) might be possible? Surface was powdery / granular, stipe absent, spore diameter 10 µm. Externally it looked similar to Mike's image of Badhamia macrocarpa but I'm totally ignorant when it comes to slim...
by JennyS
Tue Mar 19, 2019 10:05 pm
Forum: Ascomycetes
Topic: Perithecia in slits on Oak
Replies: 4
Views: 116

Re: Perithecia in slits on Oak

Thanks Paul
by JennyS
Sun Mar 17, 2019 10:49 pm
Forum: Ascomycetes
Topic: Perithecia in slits on Oak
Replies: 4
Views: 116

Re: Perithecia in slits on Oak

Thank you for the reply Paul - I did look at Chaetosphaeria ovoidea but had discounted it as the perithecia appeared to be erumpent rather than superficial. Below is an image of the ascus tip that I hope might help - I tried with both Lugols and K+Lugols to see if there was a blue reaction but appea...
by JennyS
Wed Mar 13, 2019 7:31 pm
Forum: Ascomycetes
Topic: Perithecia in slits on Oak
Replies: 4
Views: 116

Perithecia in slits on Oak

Its been a while since I've looked at microfungi and I'm already struggling! Multiple perithecia in slits in a fallen oak branch, spores hyaline, 3-septate, 17-22 x 5-6 µm. Paraphyses present, asci without croziers. Help appreciated - but am I missing something obvious in Ellis & Ellis? z Q1 190312 ...
by JennyS
Fri Feb 08, 2019 7:20 pm
Forum: Lichens
Topic: Opegrapha atra
Replies: 12
Views: 290

Re: Opegrapha atra

Many thanks for the list Mark.

General question - might it be worth submitting a request for a separate Lichenicolous Fungi section as it could be really useful to keep these posts together for easier searching and reference?
by JennyS
Fri Feb 08, 2019 9:53 am
Forum: Lichens
Topic: Opegrapha atra
Replies: 12
Views: 290

Re: Opegrapha atra

Hi Mark - could you send me a copy as well please?
by JennyS
Tue Feb 05, 2019 5:18 pm
Forum: Lichens
Topic: Cladonia macilenta or polydactyla
Replies: 3
Views: 122

Re: Cladonia macilenta or polydactyla

Hi Christine -they look like the sort of Cladonia I'd avert my eyes from and try and find more mature specimens! Alan Silverside said when testing for a K reaction it is best to test the lower portion of the podetia as apothecia and pycnidia of all red-fruited Cladonia species give K+ red to purple ...
by JennyS
Sun Feb 03, 2019 5:18 pm
Forum: Lichens
Topic: Opegrapha?
Replies: 6
Views: 142

Re: Opegrapha?

by JennyS
Sun Feb 03, 2019 5:13 pm
Forum: Lichens
Topic: Opegrapha?
Replies: 6
Views: 142

Re: Opegrapha?

Hi Chris - its a non-lichenised bark fungus, Hysterium or something related. Somewhere I've a link to an on-line key that I'll try and find......
by JennyS
Tue Jan 29, 2019 10:40 pm
Forum: Lichens
Topic: Lichenicolous fungus on Aspicilia calcarea
Replies: 0
Views: 72

Lichenicolous fungus on Aspicilia calcarea

I wondered if anyone might be familiar with this lichenicolous fungus found on Aspicilia calcarea at Portland, Dorset in March 2016? Very small perithecia(?) along edges of areoles and under the microscope there appeared to be superficial strands of black hyphae (10 um wide) present. The spores were...
by JennyS
Sat Jan 26, 2019 5:30 pm
Forum: Lichens
Topic: White Crustose Lichen
Replies: 8
Views: 278

Re: White Crustose Lichen

Hi Chris - delighted you've a positive identification for it
by JennyS
Sat Jan 26, 2019 5:28 pm
Forum: Lichens
Topic: Abrothallus on Melanohalea exasperata
Replies: 5
Views: 168

Re: Abrothallus on Melanohalea exasperata

Thanks Mark - and looking forward to hearing more about the Pronectria work in due course