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14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Gernot Friebes

Hi,do you think this collection could be R. ulmari

14-07-2025 11:19

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

25-02-2023 18:36

Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

12-07-2025 16:45

Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'avais d'abord pensé à des stro

05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

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Lachnum sp.
B Shelbourne, 28-12-2023 10:54
B ShelbourneI think this is Lachnum impudicum. Any feedback is appreciated.

Lots of small whitish cup-like ascomata with short hairs on the outside, growing on hygric deciduous wood. Collected almost a week ago (December) in southern England.

I have tried to use the 'Key to European species of Lachnum' by H.O. Baral (2006?).

Some distinguishing characters:
• Hairs with oxalate crystals -, paraphyses with strongly refractive VBs -, croziers + (subkey 5).
• Spores cylindrical to fusoid, oil content 0-?1,
(4.8) 5.2 - 6.4 (6.9) × (1.8) 1.9 - 2.2 (2.3) µm,
Q = (2.3) 2.4 - 3.2 (3.3) ; N = 30,
Me = 5.7 × 2.1 µm ; Qe = 2.8.
• Hymenium white going ochraceous.
• Paraphyses slightly protruding (~7 µm in one area measured), widths 2.6 - 3.5 µm (N = 10), lanceolate, generally cylindrical but occasionally inflated towards apex
• Hairs mostly with inflated apex.
  • message #77759
  • message #77759
  • message #77759
  • message #77759
Hans-Otto Baral, 28-12-2023 11:19
Hans-Otto Baral
Re : Lachnum sp.
Yes, I see no reason to doubt. Croziers are clear, lack of VBs, small spores, longstipitate white apos getting only yellow.
B Shelbourne, 28-12-2023 11:28
B Shelbourne
Re : Lachnum sp.
Thank you for confirming, and for another very useful key that enabled me to identify the species.