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31-10-2025 09:19

literature request
Lothar Krieglsteiner Lothar Krieglsteiner

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Dasyscyphella nivea?
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Anthracobia but which one?
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Rutstroemia firma
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Bonjour à tous,Je voudrais votre avis sur cette r

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Hymenoscyphus
Castillo Joseba Castillo Joseba

De la pasada semana en rama posiblemente de hayaPi

25-11-2016 13:54

Blue-green spored club-shaped fungus on seeds of Washingtonia
Stephen Martin Mifsud Stephen Martin Mifsud

Hi, I found numerous seeds of Washingtonia robusta

28-10-2025 22:22

Literature request
Bernard Declercq Bernard Declercq

Hello.I'm searching for the following paper:Punith

27-10-2025 19:51

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Peter Welt Peter Welt

Who has this article? Doveri, F. 2007. Sporormiel

28-10-2025 15:37

Bright orange stalked asco
Carl Farmer

I'd be grateful for any suggestions for this strik

28-10-2025 11:29

Asco on Quercus-leaves
Tanja Böhning Tanja Böhning

Hello, I found this very small (ca 0,5mm) yellow

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Phragmotrichum chailletii
William de Jong, 16-01-2022 15:10
Hi everyone,

Found on a cone of Picea abies by Frans Ozinga in The Netherlands: see pictures.
Tiny black perithecia with yellow/brown conidia with longitudinal as well as transverse septa. Measurements: (29,0-)31,0-40,9(-42,0) x (19,0-)19,5x26,2(-26,4) µm; avg. 36,1 x 22,4 µm (n=18).

I'm pretty sure it's Phragmotrichum chailletii. Based on Kunze & J.C. Schmidt (1823), Mykologische Hefte 2: 84-87 and B.C. Sutton & D.K Sandhu, Phragmotrichum pini (W.B. Cooke) comb.nov. (1969), Transactions Britisch Mycololgical Society 42 (1), 67-71.
The conidia are versicoloured, 6-beaked, are frequently chained to each other in pairs of 3 or 4. although, my measurements are a bit longer and broader than in Sutton & Sandhu (24-35x14,5-20 µm).

Since this would be a new species for The Netherlands a confirmation of the identification would be great. Please let me know.

Best regards,
William


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Björn Sothmann, 16-01-2022 15:12
Björn Sothmann
Re : Phragmotrichum chailletii
Hi William,

I agree that this is Phragmotrichum chailletii. I am a bit suprised that this has not yet been found in the Netherlands. Here in Germany, it tends to be rather common.

Björn
William de Jong, 16-01-2022 15:17
Re : Phragmotrichum chailletii
Hi Björn,

Thank you for your reply and confirmation!

It could very well be that this species has been found before in The Netherlands, but apparently it is never documented officially. 

Best regards,
William
Pierre Repellin, 16-01-2022 17:16
Re : Phragmotrichum chailletii
Très commun sur écailles de cones d'épicéa dans le Vercors (Isère)
William de Jong, 16-01-2022 18:42
Re : Phragmotrichum chailletii
Is there also more recent literature about this species?
Edit: Yes there is :) https://doi.org/10.3114/fuse.2020.05.04
(with the following measurement of the conidia: (25–)35–45(–50) × (18–)20–23(–25) µm)
Pavol Palo, 16-01-2022 22:06
Re : Phragmotrichum chailletii
Look
William de Jong, 17-01-2022 19:27
Re : Phragmotrichum chailletii
Thank you Pavol. From which publication is this?
Pavol Palo, 17-01-2022 19:36
Re : Phragmotrichum chailletii
Hi Wiliam

Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz .

Pavol
William de Jong, 17-01-2022 20:32
Re : Phragmotrichum chailletii
Thanks!