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05-05-2025 22:06

Patrice TANCHAUD

Bonsoir, il y a quelques temps, j'avais évoqué

01-05-2025 20:11

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello, today I have collected a tiny ascomycete g

27-04-2025 15:54

Martin Bemmann Martin Bemmann

Can somebody provide this article from a Leningrad

03-05-2025 18:35

Edmond POINTE Edmond POINTE

J'ai  connu Michel DELPONT au début de ma passio

05-05-2025 10:09

Nicolas Suberbielle Nicolas Suberbielle

Re-bonjour,Cet ascomycète trouvé et étudié par

05-05-2025 09:35

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Marie-Rose d'Angelo de la SociétÃ

29-04-2025 09:13

Louis DENY

Bonjour forumVosges du sud, ballon d'Alsace altitu

04-05-2025 11:37

Andreas Gminder Andreas Gminder

Hello,yesterday I took an attached branch of Querc

02-05-2025 08:41

Tony Moverley

A Monilinia type fungus has recently been collecte

02-05-2025 08:45

Isabelle Charissou

Bonjour, existe-t-il un pdf d'un Glossarium polygl

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Helotiales on cone again
Juuso Äikäs, 08-11-2024 17:36
Recently I posted here my finding of small white apos growing on a fallen Picea abies cone. I found these once again, but this time on a fallen Pinus sylvestris cone.

This species seems rather distinctive, and apparently at least locally common as well. So I decided to post this finding as well — this time with better data. Could this be identified even to family level?

The apos are sessile-substipitate and 0.2 - 0.4 mm wide. Asci 8-spored, IKI+(b), croziers present. Paraphyses narrowly cylindrical, with multiguttulate tips; similar cells on the margin. Extal excipulum with angular-globose cells and round guttules.

Spores with two large guttules and some smaller ones. Some spores appeared to have a gelatinous sheath. Measurements:

(15.1) 15.8 - 19.3 (20.4) × (3.4) 3.7 - 4.2 (4.4) µm
Q = (4) 4.3 - 4.8 (5.1) ; N = 10
Me = 17.9 × 4 µm ; Qe = 4.5

Asci:

69.1 - 90 × 9.8 - 12.4 µm
Q = 7 - 7.4 ; N = 3
Me = 79 × 10.9 µm ; Qe = 7.2

 
Hans-Otto Baral, 08-11-2024 18:14
Hans-Otto Baral
Re : Helotiales on cone again
This doesn't look the same as that on Picea if you mean that.

The apical ring is rather thick and the apex very conical, also the VBs in the paraphyses are restricted to the apex. H. epiphyllus would be multiguttulate in the cortical excipulum.

I am unsure for a genus, rather Calycina than Hymenoscyphus?
Juuso Äikäs, 08-11-2024 18:18
Re : Helotiales on cone again
I mean this one from a little earlier: 


The Hymenoscyphus was on a Pinus cone as well (on the core part).
Hans-Otto Baral, 08-11-2024 21:38
Hans-Otto Baral
Re : Helotiales on cone again
Ah o.k., now I remember. The paraphyses look like in Hymenosc. sparsus but that is a stipitate fungus on leaves, with typical Hym.-type of apical ring.