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22-05-2026 21:35

Steve Clements

Bonjour, I expected this find on old wood on our

22-05-2026 18:12

Lothar Krieglsteiner Lothar Krieglsteiner

... in moist chamber from Portugal.As the fungus s

22-05-2026 20:08

Ethan Crenson

Hello all,  Yesterday in NYC I was visiting an e

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

20-05-2026 17:47

Margot en Geert Vullings

We found this Mollisia on dead Juncus stems mown l

22-05-2026 14:47

Gernot Friebes

Hi,superficial ascomata collected on bark of a liv

22-05-2026 14:44

Lothar Krieglsteiner Lothar Krieglsteiner

in unripe condition citrine yellow, then soon fadi

22-05-2026 13:29

Gernot Friebes

Hi,I am curious to hear your opinion on this mater

22-05-2026 10:59

Nicolas VAN VOOREN Nicolas VAN VOOREN

Trouvé sur Phragmites, ce que je pense être un L

20-05-2026 21:49

Margot en Geert Vullings

We found this Lachnum on Juncus stems mown last ye

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Hymenoscyphus calyculus 121015 236
Miguel Ángel Ribes, 10-08-2016 21:31
Miguel Ãngel RibesGood night

This Hymenoscyphus was growing on small herbs of Rumex scutatus. I think it is a common species, but is the first time I see it.

Asci 8 spores, with croziers, euamyloid and with a slight cover in the apex,  (114,8) 116,3 - 123,6 (126,3) × (9,9) 10,2 - 12,4 (13,4) µm; N = 19; Me = 120,3 × 11,4 µm.

Spores more or less navicular with a pointed end and rounded the other one, but sometimes with a small "teeth". Sometimes covered with a partial gelatinous shell, mainly in the acute end, (15) 16,7 - 20,9 (22,9) × (4,5) 4,8 - 5,6 (6,4) µm; Q = (2,9) 3,2 - 4,1 (4,9); N = 101; Me = 18,7 × 5,2 µm ; Qe = 3,6.

Paraphysis plenty of refractive VBs.

Thank you for your help.

Miguel Á. Ribes
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Hans-Otto Baral, 10-08-2016 21:49
Hans-Otto Baral
Re : Hymenoscyphus calyculus 121015 236
No no, this is an interesting collection, nothing common. It has actually great similarities with H. calyculus, but I would never expect H. calyculus on herbaceous stems.

No idea about this sample, actually. H. calyculus I did not see since a very long time. It might be more frequent in the region of the Alps, but molecular research on it showed that populations with very different rDNA exist - the matter remained unsolved.

Zotto
Miguel Ángel Ribes, 10-08-2016 22:53
Miguel Ãngel Ribes
Re : Hymenoscyphus calyculus 121015 236
Que suerte tengo, si monto un circo me crecen los enanos., 2 de 2. I am sorry, I can't translate it to English. I have a third Hymenoscyphus to sent, perhaps tomorrow, I hope it will be a known species.

Thanks Zotto, another candidate to molecular studies.