11-05-2024 18:08
B Shelbourne
• Mollisia on tree leaves: On dead Quercus leave
12-05-2024 11:48
Michel Hairaud
Bonjour , Voici une récolte d'une Rhytismataceae
10-05-2024 17:40
Anna KlosGood afternoon, Thursday during an inventory we f
11-05-2024 00:33
Ethan CrensonI'm not entirely sure that Encoelia-like is the ri
07-05-2024 00:04
Ethan CrensonA friend found these black gelatnous cups on a twi
09-05-2024 13:07
Thorben HülsewigHi there,i'm looking for following pdf:Morris, E.F
06-05-2024 10:02
François BartholomeeusenGood morning,At the end of an excursion in De Zegg
Pink lichen-like asco
Stephen Mifsud,
31-03-2015 09:25
Hi guys, I am attempting a determination on this beautiful pinkish lichen-like ascomycete (saw some small cups, and not greenish so, I am inclined it is a fungus). I will do some micro and keep you posted. It is so beautiful that I could not resist not posting! It was located on limestone-rich damp soil exposed and in full sunshine. (that favours a lichen!)
Stephen Mifsud,
31-03-2015 11:03
Re : Pink lichen-like asco
longitudinal cross section revealed 3 layers:
Uppermost (ecternal): pinkish-beige (becomes beige when dry)
Middle layer: green algal layer, thin, well defined
Lower layer: cotton white
Substratum (chalky limestone soil, yellowish) firmly attached below.
Despite a very thin cross-section, I could not see much detail because the section are not squashable and remains several layers thick-compact. Algal cells liberated bur I recall they are not diagnostic for determination. I am afraid I took a very young specimen and not reproductive. I shall now try another section on a mature specimen treated in 10% KOH before Congo red, hoping it will have mature asci.
Interesting adventure!
Uppermost (ecternal): pinkish-beige (becomes beige when dry)
Middle layer: green algal layer, thin, well defined
Lower layer: cotton white
Substratum (chalky limestone soil, yellowish) firmly attached below.
Despite a very thin cross-section, I could not see much detail because the section are not squashable and remains several layers thick-compact. Algal cells liberated bur I recall they are not diagnostic for determination. I am afraid I took a very young specimen and not reproductive. I shall now try another section on a mature specimen treated in 10% KOH before Congo red, hoping it will have mature asci.
Interesting adventure!
Tommy Knutsson,
31-03-2015 12:13
Re : Pink lichen-like asco
Psora decipies is a common lichen on that substrate and fits your specimen very well. Young thalli often show that pattern.
Stephen Mifsud,
31-03-2015 12:47
Re : Pink lichen-like asco
Psora decipiens, thank you!
The micro wasn't interesting. Algal cells and many amorphous cells, some branching hypha, and in one small part, tube-like structures with narrow core. Well, good that the macro was enough for determination. Interestingly, unlike ascomycots, there was no micro images of this lichen with a simple google image search.
I will keep the sample & substrate to see how it develops.
The micro wasn't interesting. Algal cells and many amorphous cells, some branching hypha, and in one small part, tube-like structures with narrow core. Well, good that the macro was enough for determination. Interestingly, unlike ascomycots, there was no micro images of this lichen with a simple google image search.
I will keep the sample & substrate to see how it develops.
