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11-05-2026 12:32

Bernard CLESSE Bernard CLESSE

Pourriez-vous m'aider à identifier cette héloti

13-05-2026 15:26

François Freléchoux François Freléchoux

Bonjour,Voici une récolte faite il y a quelques j

12-05-2026 15:41

Nicolas VAN VOOREN Nicolas VAN VOOREN

Dear Ascolovers, especially interested in Pezizale

13-05-2026 12:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'aimerais avoir confirmation de c

10-05-2026 23:17

Andreas Gminder Andreas Gminder

Hello,today we found in a moist steep decidous for

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

11-05-2026 20:22

Lothar Krieglsteiner Lothar Krieglsteiner

on attached twig of standing Ficus caricaquite uns

11-05-2026 13:22

Sylvie Le Goff

BonjourPuis avoir votre avis sur cet ascome, je vo

29-04-2026 10:44

Lothar Krieglsteiner Lothar Krieglsteiner

growing at moist, drying-out soil at the side of a

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Black with white hairs 280117 361
Miguel Ángel Ribes, 01-02-2017 01:07
Miguel Ãngel RibesGood night

This small (500-600 µm) black ball with white hairs was growing at the beach, 1 m, at Thymelaea hirsuta branches.

Mature spores slightly brown, with 3 septa, (22,5) 25,2 - 28,5 (29,6) × (7,9) 8,2 - 9,7 (10) µm; Q = (2,4) 2,8 - 3,2 (3,3); N = 35; Me = 26,9 × 9 µm ; Qe = 3.

Asci 8-spored, with croziers, IKI-,  (90,7) 98 - 124,6 (133,4) × (14,8) 17,3 - 20 (21,7) µm; N = 34; Me = 113 × 18,4 µm

Ectal excipulum brown with textura angularis. Sorry, imposible to make a transversal section.

Paraphysis slightly moniliform.

White hairs with refringent and thick wall, 150-200 µm.

Thank you in advance.

Miguel Á. Ribes
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Andrew N. Miller, 01-02-2017 01:18
Andrew N. Miller
Re : Black with white hairs 280117 361
Helminthosphaeria cf. ludens, but the hairs should be darker and many of the asci should have 4 mature spores.

http://wwx.inhs.illinois.edu/files/5714/0191/3047/Helminthosphaeriaceae_Miller_et_al_Mycologia2014.pdf

Andy
Miguel Ángel Ribes, 01-02-2017 08:00
Miguel Ãngel Ribes
Re : Black with white hairs 280117 361
Thank you Andrew

This night at home I will check all my asci pictures, but I remember all of them wiht 8 spores. About hairs, none not white; all old apos, when they loose the hairs, the few of them that remain are white too.

None similar species? 

Best wishes.
Andrew N. Miller, 01-02-2017 16:20
Andrew N. Miller
Re : Black with white hairs 280117 361
This is the closest species that I know of.  All others have shorter ascospores.  See my key.  Lots of cryptic species in the Helminthosphaeriaceae.

Best,
Andy
Miguel Ángel Ribes, 01-02-2017 22:32
Miguel Ãngel Ribes
Re : Black with white hairs 280117 361
Hi Andrew

Yes, with your key I arrive to H. ludens, but my spores are a little bigger, hairs are white and asci have 8 spores, inmature and mature (pictures attached).

No doubt about Helmintosphaeria? I said this because my ascomata is not hard and carbonaceus, it is soft.

Thank's a lot.
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Andrew N. Miller, 01-02-2017 22:42
Andrew N. Miller
Re : Black with white hairs 280117 361
If you have 20-30 ascomata, send them to me and I can sequence this species and see what the DNA says.

Best,
Andy
Miguel Ángel Ribes, 02-02-2017 21:12
Miguel Ãngel Ribes
Re : Black with white hairs 280117 361
No, no more than 8-10 ascomata, sorry, but if you want I could send all to you.

Best wishes.
Andrew N. Miller, 02-02-2017 21:17
Andrew N. Miller
Re : Black with white hairs 280117 361
Bummer... but this is typical for Helminthosphaeriaceae, which is why only insane people work on this group - ha!

No need to send.  I do not think I can get a good sequence from only a few ascoamta, and these things do not germinate in culture.

Best,
Andy
Miguel Ángel Ribes, 02-02-2017 21:46
Miguel Ãngel Ribes
Re : Black with white hairs 280117 361
Jejejeje.

The collection was made at 500 km of my home, difficult to pick up again. Next year perhaps...

Thank you again.
Miguel Ángel Ribes, 07-02-2017 18:47
Miguel Ãngel Ribes
Re : Black with white hairs 280117 361
Hello Andy

I have check all the branch slowly and I have count already 30 ascomatas (someone have no hairs, so difficult to see). I could sent you all my material if you give me your adress.

It is now in fresh condition, do you prefer I sent it fresh or dried?

Thank you.
Andrew N. Miller, 07-02-2017 18:59
Andrew N. Miller
Re : Black with white hairs 280117 361
Please send slowy dried (not too much heat) to:

Dr. Andrew Miller
University of Illinois
Illinois Natural History Survey
1816 South Oak Street
Champaign, IL 61820-6970
phone: (217) 244-0439

Best,
Andy
Miguel Ángel Ribes, 07-02-2017 19:13
Miguel Ãngel Ribes
Re : Black with white hairs 280117 361
Ok, Andrew, I will dried it at home temperature.

Best wishes.
Andrew N. Miller, 07-02-2017 19:15
Andrew N. Miller
Re : Black with white hairs 280117 361
Cool

Andy