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16-03-2025 11:04

Recherche article / Searching for a paper
Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour.Je cherche une copie de l'article suivant:

13-03-2025 19:16

Wood anatomy
Enrique Rubio Enrique Rubio

By means of these photographs could anyone identif

13-03-2025 16:50

Orbilia frangulae?
Harald Homa Harald Homa

Good evening Another find I'm looking for help wi

15-03-2025 13:10

Heteroconium? on Nemania serpens
Edvin Johannesen Edvin Johannesen

These hair balls are growing on top of Nemania ser

14-03-2025 23:29

coprophilous Scutellinia
Warre Van Caenegem

Good evening everyone. Last year, I found this cop

12-03-2025 17:54

Scutellinia hyperborea?
Karl Soler Kinnerbäck

Hi all!Do you agree with Scutellinia hyperborea? P

14-03-2025 22:05

Bâtonnets noirs
Yanick BOULANGER

BonsoirSur écorcePetits bâtonnets friable, tortu

11-03-2025 13:10

Forma Pezizal 08-03-25
Blasco Rafael Blasco Rafael

Hola, alguna idea para esta especie ??Recogida sob

14-03-2025 16:26

Orbilia frangulae?
Guy Marson

Hallo Harald,Rein von der Optik, sehen die Sporen

13-03-2025 09:25

Chaetosphaerella phaeostroma et conidies
Yanick BOULANGER

BonjourJe poste ce pyrénomycète, pas pour Chaeto

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Ascolichen or lichenicolous fungus?
Enrique Rubio, 07-02-2025 20:25
Enrique RubioDear all.
Ascomata pheritecioid, KOH-negative, flask-shaped, black, melanized, ostiolate and up to 0.5 mm high, semi-inmersed o a thick layer of green algae over old thalli of a Frullania species on hardwood. The hymenium is hemiamyloid, reddish in IKI, deep blue after KOH-pret. Periphyses numerous, pseudoparaphyses or paraphyses not seen. I think the asci are not bitunicate, but I can't say for sure. The ascospores are hyaline, very pale yellowish brown at maturity, (3-)6-7 transversaly septate and smooth.
I really can't tell whether it is an ascolichen or a lichenicolous ascomycete. Would any of you have any ideas that could help me?
  • message #81548
  • message #81548
  • message #81548
  • message #81548
  • message #81548
  • message #81548
Paul Diederich, 07-02-2025 21:09
Paul Diederich
Re : Ascolichen or lichenicolous fungus?
This is a lichen, not a lichenicolous fungus. It strongly resembles species of Agonimia, but in that genus, ascospores are always (sub-)muriform.
Zdenek Palice, 07-02-2025 23:51
Zdenek Palice
Re : Ascolichen or lichenicolous fungus?
Hallo, I agree that it is a lichen. In my opinion it could be a richly fertile specimen of Normandina chlorococca (Leighton) Orange, recently segregated from N. acroglypta by the late Alan Orange in Lichenologist 54 (2022). Both N. acroglypta and N. chlorococca are often associated with Frullania liverworts, and both species may even grow together on 'mossy' ultramafic (serpentinic) rocks. The epiphytic/epixylic stuff usually refers to N. chlorococca, which is normally sorediate sterile crust and only rarely fertile. The two species are reliably separated by chemistry, different terpenoids.
Enrique Rubio, 08-02-2025 00:32
Enrique Rubio
Re : Ascolichen or lichenicolous fungus?
Thank you Paul and Zdenek.
It matches perfectly with Normandina chlorococca!
Alain GARDIENNET, 08-02-2025 08:40
Alain GARDIENNET
Re : Ascolichen or lichenicolous fungus?
Hi friends,
Zdenek, I would be interested by Orange's paper because I met N. acroglypta in my fields.
Best wishes,
Alain (agardiennet@gmail.com)