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27-03-2026 10:47

Åge Oterhals

I have tentatively identified this Stictis to S. f

26-03-2026 15:31

Ãke Widgren Åke Widgren

Hello,I found this one in October last year, on r

25-03-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a dead b

24-03-2026 21:37

Elisabeth Stöckli

Bonsoir,Sur bois (tronc) très pourri de conifère

26-03-2026 12:50

David Chapados David Chapados

Hi,I'm having a hard time figuring which Pseudombr

26-03-2026 11:17

Vasileios Kaounas Vasileios Kaounas

Found 11-03-26, in leaf of Ulmus sp. Diameter 2-4

25-03-2026 22:23

Marc Detollenaere Marc Detollenaere

Dear Forum,On a debarked stem of Tilia, we found s

24-03-2026 15:44

Åge Oterhals

I hope someone can confirm the name of this collec

25-03-2026 20:53

François Bartholomeeusen

Dear forum members,On 23 March 2026, I found sever

23-03-2026 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

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Yellow Lachnum
Marja Pennanen, 15-06-2011 00:05
Hello folks,

I've seen this yellow hairy one for three years on grasses in the same small damp place on a field.
They are about 1 mm high and the cup is up to 0,5 mm wide.
The yellow colour comes from paraphyses and hairs.
This seems to be a combination of L. tenuissimum and L. carneolum var. longisporum.
Spores: 10-15x1,5-2.
Asci: about 30-60x4.
Paraphyses: lanceolate, yellow , up to 6 wide, about 20 exceeding the asci.
Hairs: 40-50x4-6, swollen at tips, yellow based.

Once again help is needed, because none of my sources has a description of anything like this...

Marja

?

  • message #15595
  • message #15595
  • message #15595
Hans-Otto Baral, 15-06-2011 00:09
Hans-Otto Baral
Re : Yellow Lachnum
Hi Marja

I wonder whether the spores are really that long. L. carneolum has non-capitate hairs, and I do not know it with yellow VBs. L. tenuissimum (I use the name pudicellum) may have yellow VBs, and I think this is only a colour variant.

Zotto
Marja Pennanen, 20-06-2011 14:55
Re : Yellow Lachnum
Hi,

I contacted Marketa and she told me, that this could be not so often collected Dasyscyphus winteri (Cooke) Svr?ek.
No wonder I (and maybe Zotto, too) had severe difficulties with the determination...

Marja

Hans-Otto Baral, 20-06-2011 15:56
Hans-Otto Baral
Re : Yellow Lachnum
Lachnum winteri (Cooke) Velen. is a species perhaps confined to Phragmites and, like L. controversum and L. tenuissimum/pudicellum, without croziers (in case you see that). But L. winteri and L. controversum have apically hardly inflated hairs, whereas L. tenuissimum/pudic. have capiate hairs. I think yours look much too capitate for L. winteri.

Zotto
Marja Pennanen, 20-06-2011 17:38
Re : Yellow Lachnum
Thank you.

I should once again go and check weather I can still find this. The midsummer fest is approaching and I'm going to our county place. I'll go hunting this, if the insicts let me.  If it has vanished then next spring or early summer. I have only a scanty specimen.

This grew together with a bigger Lachnum, L. carneolum var. longisporum?, if I remember correct. I checked, but made no notes, because I have studied that so many times before.

You know, that croziers are a bit too hard for me, but I won't still give up: Marja


Marja Pennanen, 21-06-2011 12:06
Re : Yellow Lachnum
I remembered collecting this more and now finally found some from my boxes.
I studied it for croziers and think I saw one, but the asci bases do not support that.

I measured many spore lenghts in 1000x and they are really 7-15  (9,10,13,12,13,8,7,11,15,14,12...). They seem too long for L. tenuissimum.
All the hairs are not capitate and they may be a little over 50 long.

Marja