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Philippe PELLICIERSur branche de mélèze (Larix) près de la neige,
Lachnellula subtilissima
Yatsiuk Iryna,
09-01-2011 13:10
Hello, 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
Yatsiuk Iryna,
09-01-2011 13:12
Re:Lachnellula subtilissima
Asci, spores, paraphyse.
Hans-Otto Baral,
09-01-2011 13:27
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
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
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
Here are hairs, but quality is poor:( Hairs are 45-65 um*5-6 um (at the widest part).
Irina
Hans-Otto Baral,
10-01-2011 16:26
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
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
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
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