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21-08-2025 18:09

Semble Thecotheus
Edmond POINTE Edmond POINTE

Bonjour Amis mycologues.Trouvé sur crottin de che

20-08-2025 19:04

Adelphella babingtonii - lacking much brown pigment
Ethan Crenson

Hello, This asco was found on the same wood as my

21-08-2025 02:18

Helicoma muelleri?
Stefan Jakobsson

On a necrotic section of a living Tilia cordata I

18-08-2025 23:15

S.vitreola?
Zoe Vélez Zoe Vélez

Hola foro, gracias por aceptar la creación de mi

19-08-2025 20:58

Hymenoscyphus ? on very wet wood
Ethan Crenson

Hi all, Here is what I believe to be a Hymenoscyp

12-08-2025 19:44

Literature request on Clypeosphaeriaceae
Enrique Rubio Enrique Rubio

Could someone send me a pdf copy of this article?S

18-08-2025 15:17

bitunicate ascomycete on dead Sphagnum from Norway
Lothar Krieglsteiner Lothar Krieglsteiner

... on 6.7.25 in a subarctic mire near a small lak

18-08-2025 15:07

pyrenomycete on dead parts of foliose liverwort from Norway
Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

19-08-2025 16:27

Strange fungus on rotten Quercus wood in stream
Paul Cannon

Hello all I have spent some time trying to work o

18-08-2025 22:59

Apothecie jaune en toupie
Yanick BOULANGER

BonsoirVoici un asco récolté le 08/08/2025Comme

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Arachnopeziza
Elisabeth Stöckli, 18-04-2020 21:45
Bonsoir,

Trouvé sur face cachée d'un morceau de conifère (au bord d'un ruisseau à 745 m), apothécies 0.4 - 0.8 mm de diamètre (incl. poils), blanc, sessiles, surface externe couvertes de poils, grégaires, asques 52 - 70 x 7 - 8 µm, octosporés, J+, avec crochet, spores 9 - 14 x 2.75 -  3.1 µm, pharaphyses filiformes, ramifiées, poils hyalins et multiseptés, à exsudats jaunâtres, jusqu'à 180 µm.


Merci d'avance pour votre aide.


Elisabeth

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Kosonen Timo, 18-04-2020 22:11
Kosonen Timo
Re : Arachnopeziza
Simply impressive.

The hairs are exceptionally long, slender and multimulti-septate. The hair length is a fairly regular character in the genus as far as I know. I have some collections of Arachnopeziza from softwood, but nothing like this. I dont have good suggestions. Maybe one of the less collected species in Korf's monograph? Also,  usually there is atleast one septa in mature spores, maybe there are some tomorrow?

What kind of population was it? This is something special, a culture is obligatory, should I send you some plates? :-)

bw

Timo
Elisabeth Stöckli, 22-04-2020 13:08
Re : Arachnopeziza

Merci Timo,


after three days only some ascospores one septa.


Elisabeth

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Kosonen Timo, 22-04-2020 13:46
Kosonen Timo
Re : Arachnopeziza
ok. thanks

Really no idea. The possible name I had in my mind was A. fitzpatrickii, but it doesn't fully fit the description. Maybe Luis has seen it in the USA? :-). Any comments? ...but just a shot. The combination of spores and hairs in this specimen does not fit anything I know.  What was the conifer in question, Pinus, Abies?

Timo
Elisabeth Stöckli, 23-04-2020 08:20
Re : Arachnopeziza

Difficult, the wood is destroyed (brown rot), I guess Picea.


Elisabeth

Quijada Luis, 23-04-2020 16:24
Re : Arachnopeziza
Hi Timo, Hi Elisabeth
This is not A. fitzpatrickii. The macro is very different, but also the hairs. We are writing an small manuscript about this collection and we have sequences. I will reach you Timo when the manuscript is done. A researcher that visit us that had no projects in mind decide to work on that, but it was just before the COVID and now the manuscript is stopped. The hairs of A. fitzpatrickii are like teeth, all of them cemented and you can count them (see attached)
Best wishes
Luis
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