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06-02-2026 01:14

Amniculicola
Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

05-02-2026 15:07

Asco in Pinus halepensis
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Found on a fallen needle of Pinus halepensis, diam

05-02-2026 06:43

At first glance, a Nitschkia, but...
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Hello everybody, Any help on this one would be mu

18-08-2025 15:07

pyrenomycete on dead parts of foliose liverwort from Norway
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.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Dark disc on Populus
Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Lichénicole sur Lobaria
Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Lichénicole sur Peltigera
Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Lichenicole hypocreale
Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

02-02-2026 09:29

Scutellinia hirta ? sur souche moussue
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

01-02-2026 19:29

Lambertella sur Olea
Nicolas Suberbielle Nicolas Suberbielle

Bonjour, Marie-Rose D'Angelo (Société Mycologiq

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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!