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15-12-2025 21:11

Hardware Tony Hardware Tony

Small clavate hairs, negative croziers and IKI bb

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

15-12-2025 21:47

Pol Debaenst

Good evening, On 12/11/2025 I found ascomycetes w

15-12-2025 15:54

Johan Boonefaes Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 15:48

Danny Newman Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

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Danny Newman Danny Newman

Pseudosclerococcum golindoi (det: Zotto)near Cosb

15-12-2025 11:49

Danny Newman Danny Newman

ITS sequences from the following two collections B

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Danny Newman Danny Newman

indet. Rhytismataceae on oak leafnear Purchase Roa

09-12-2025 12:06

Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche l'article concernant Hypobryo

13-12-2025 17:26

Buckwheat Pete

Hello everyone,I have a rather interesting ascomyc

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Lachnellula subtilissima
Yatsiuk Iryna, 09-01-2011 13:10
Yatsiuk IrynaHello, Forum!

Is that discomycete what I think (Lachnellula)? Could Lachnellula be collected on the wood of deciduous tree?

Apothecia stalked, 1-1,5 mm in diam, inner side yellow in dry condition, light pink after rehydration. Outer surface covered with hairs, which are covered with warts at least at the tops of the hairs.
Asci without croziers, apical pore blued in IKI, 45-50*4-5 um.
Spores with 1-3 oil drops(?), 7-9*2-2,5 um., fusiform.
Specimen was collected on the decaying (without bark) branch of probably Populus alba.

Best wishes,
Irina
  • message #13844
Yatsiuk Iryna, 09-01-2011 13:12
Yatsiuk Iryna
Re:Lachnellula subtilissima
Asci, spores, paraphyse.
  • message #13845
Hans-Otto Baral, 09-01-2011 13:27
Hans-Otto Baral
Re:Lachnellula subtilissima
Dear Irina

certainly not a Lachnellula which has a yellow-orange disc and is restricted to conifers. You need to show us the hairs, to see if it could be a Lachnum

Zotto
Yatsiuk Iryna, 10-01-2011 14:21
Yatsiuk Iryna
Re:Lachnellula subtilissima
Thank you, Zotto.
Here are hairs, but quality is poor:( Hairs are 45-65 um*5-6 um (at the widest part).
Irina
  • message #13857
Hans-Otto Baral, 10-01-2011 16:26
Hans-Otto Baral
Re:Lachnellula subtilissima
Hi Irina

yes, the hairs clearly belong to Lachnum. I suppose this is L. brevipilosum though your spore drawing with the droplets looks a bit strange. The disc is reddish because of age (drying or senescence), fresh apothecia are pure white. The reddening comes from oxidation of VBs which are very distinct droplets inside living hairs and paraphyses.

Zotto
Yatsiuk Iryna, 11-01-2011 15:00
Yatsiuk Iryna
Re:Lachnellula subtilissima
Thank you, Zotto.

I have looked one more time at the specimen with immersion lens and see that maybe it were not droplets, but just some pale areas in the spores.
It is very interesting to look at fresh specimens. I'm waiting for the field season!
Irina