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29-03-2024 14:37

Michel Hairaud Michel Hairaud

Bonjour , Voici une nouvelle récolte de cette be

29-03-2024 09:21

Michel Hairaud Michel Hairaud

Bonjour, Je recherche la description du genre Mac

26-03-2024 17:14

Juuso Äikäs

These little black ascos were growing on a dead, d

28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

27-03-2024 22:53

Charles Aron Charles Aron

Hi All,Recently I came across these minute, setose

25-03-2024 13:41

B Shelbourne B Shelbourne

• Hyaloscyphaceae (no VBs), Hyaloscypha: Macro a

25-03-2024 21:27

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, March 2024

26-03-2024 14:37

DAVID MARCOS DAVID MARCOS

Spores (telles qu'elles apparaissent à l'intérie

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-03-2024 11:06

michel bertrand

Bonjour, Malgré de nombreuses recherches, je n'a

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Lachnum on fallen branch
Juuso Äikäs, 27-07-2021 13:05
These I found on Sunday, growing in a moist depression on a decorticated piece of fallen branch.

Asci without croziers, but many with a basal protuberance. Hairs mostly moderately swollen at the apex, with VBs. Paraphyses also with VBs. I only found a few free spores, but they seemed mature and measured 9.2 - 10.1 × 2.1 - 2.4 µm.

I think this could be either L. brevipilosum or L. pudibundum, but I'm not sure which one...
  • message #69640
  • message #69640
Charles Aron, 27-07-2021 14:26
Charles Aron
Re : Lachnum on fallen branch

Hi Juuso,


I collected what I regarded to be good pudibundum from dead wood of Crataegus and the apothecia readily discoloured reddish-brown.


Best wishes,


Charles.

Juuso Äikäs, 27-07-2021 16:16
Re : Lachnum on fallen branch
Thanks for the reply. I tried squashing a few apos and they turned brown, maybe a little reddish as well. But I think the redding is a quality shared by all Lachnums with VBs, if I'm not mistaken.
Hans-Otto Baral, 27-07-2021 16:35
Hans-Otto Baral
Re : Lachnum on fallen branch
This needs more mature apothecia. Good would also to know be the substrate. In mature L. pudibundum the paraphyses protrude by around 10-15 µm, not so in brevipilosum.

Yes, only species with VBs turn reddish-brownish.
Juuso Äikäs, 27-07-2021 16:51
Re : Lachnum on fallen branch
Ok, thanks. I'll see if I can keep the sample alive for a while.