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05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

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Lachnum on Schoenoplectus
Marcus Yeo, 27-08-2013 23:27
Bonjour

I found this discomycete recently growing on dead stems of Schoenoplectus lacustris in the UK. Details as follows:

Apothecia up to 0.8 mm across. Sessile. With pale orange discs.

Asci 70-85 x 8-10 µm. No croziers seen (but I'm not certain they are absent).

Spores 15-18 x 3-3.5 µm, with several oil bodies (ca 40% oil content).

Paraphyses extending 10-20 µm beyond asci, with many small oil bodies. 3-4 µm wide.

Hairs ca 50 x 2 µm. Granular throughout. Cylindrical with rounded apices.  

The attached images are not very good but hopefully show the main features reasonably well. 

The best fit I can find using Nordic Macromycetes and Mycokey is Lachnum albidoroseum though the colour of the apothecium is described as pink or rose whereas my specimen was orange.

I'm still very much a beginner with ascomycetes - this is my first post on Ascofrance. Any help with identification would be very gratefully received!

Merci

Marcus

  • message #24940
  • message #24940
  • message #24940
  • message #24940
  • message #24940
Martin Bemmann, 27-08-2013 23:40
Martin Bemmann
Re : Lachnum on Schoenoplectus
Hans-Otto Baral, 28-08-2013 00:03
Hans-Otto Baral
Re : Lachnum on Schoenoplectus
yes, it is, and albidoroseum is a synonym.

Zotto
Marcus Yeo, 28-08-2013 19:26
Re : Lachnum on Schoenoplectus
Many thanks for your rapid responses and confirmation of my identification.

Marcus