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Bonjour,Voici une récolte faite il y a quelques j
Massaria 130424 702 on Laurus in Madeira
Miguel Ángel Ribes,
01-08-2024 08:12
Good morningThis Pyreno grew on dead wood with bark, probably from Laurus in Madeira. The size of the perithecia is Me = 890.7 × 412 µm. The asci are octosporic, apparently uniseriate and IKI -.
Ascospores are fusiform, with pointed ends, hyaline when young and light brown when mature, wavy edges, with 4 large guttules, 2 large central ones and 2 smaller external ones, when dead they have 3 septa, (24,6) 25,8 - 30,9 (32,6) × (9,4) 10 - 12,5 (13,2) µm; Q = (2,2) 2,3 - 2,7 (2,8); N = 75; Me = 28 × 11,4 µm ; Qe = 2,5.
Paraphyses very long and narrow.
I think it is a Massaria, but I don't find the especies.
Thank you in advance.
Miguel Ángel Ribes.
Eduard Osieck,
01-08-2024 22:38
Re : Massaria 130424 702 on Laurus in Madeira
Massariaceae (including Massaria) can presumably be excluded within its current circumscription because spore length should be at least 40 um (Voglmayr & Jaklitsch 2021). May be you can get inspiration from the paper "Resolution of morphology-based taxonomic delusions: Acrocordiella, Basiseptospora, Blogiascospora, Clypeosphaeria, Hymenopleella, Lepteutypa, Pseudapiospora, Requienella, Seiridium and Strickeria" (Jaklitsch et al. 2026, Persoonia 37: 82-105). Some of the treated species have similar spores.
all the best, Eduard
all the best, Eduard
Miguel Ángel Ribes,
02-08-2024 14:02
Re : Massaria 130424 702 on Laurus in Madeira
Thank you Eduard
I will check that paper.
Miguel Ángel Ribes
I will check that paper.
Miguel Ángel Ribes
Jaklitsch Walter,
07-09-2024 09:54
Re : Massaria 130424 702 on Laurus in Madeira
This is a lichen, most probably Pyrenula macrospora. Check for small white spots or pores in the greenish lichen thallus under a lens.
Alain GARDIENNET,
07-09-2024 11:04
Re : Massaria 130424 702 on Laurus in Madeira
Hi Walter, what a pleasure to read you again here.Of course I agree with you.
Pyrenulales are interesting and nice pyrenomycets, but it's not always easy to observe lichenization, in the past I've had experiences identical to Miguel's.
Alain
Pyrenulales are interesting and nice pyrenomycets, but it's not always easy to observe lichenization, in the past I've had experiences identical to Miguel's.
Alain
Miguel Ángel Ribes,
07-09-2024 17:32
Re : Massaria 130424 702 on Laurus in Madeira
Thanks Walter and Alain. Now I am on holidays out of Spain. I will check that when I come back.
Miguel Ángel.
Miguel Ángel.