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18-08-2025 15:35

hemiamyloid Chlorociboria from Norway on Picea
Lothar Krieglsteiner Lothar Krieglsteiner

.. in subarctic forest at side of small stream, ac

18-08-2025 16:01

Cosmospora spec. from Norway
Lothar Krieglsteiner Lothar Krieglsteiner

.. on water-soaked Betula wood lying in a small st

18-08-2025 17:52

Hyaloscypha
Yanick BOULANGER

BonjourAu fil des conversations, j'ai lu que Hyalo

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

31-12-2021 12:12

Literature Request - Stenocybe
Georges Greiff

Happy New Year to All! I was hoping somebody coul

15-08-2025 12:47

Scutellinia kerguelensis ?
Philippe PELLICIER

Bonjour, j'ai récolté cette Scutellinia au Col d

15-08-2025 21:50

Asco imparfait sur Corylus avellana et Populus x canadensis
Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

13-08-2025 12:17

Ascobolus B en KK de vacuno
Castillo Joseba Castillo Joseba

De ayer en la misma muestra que el Ascobulus anter

13-08-2025 22:41

Hyaloscypha britannica?
Francois Guay Francois Guay

I found this species on decaying wood in Québec,

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Lachnellula subtilissima?
Juuso Äikäs, 10-03-2021 10:39
During last winter I collected some Lachnellulas and it seemed that L. subtilissima was clearly the most common species. I collected it both from Picea abies and Pinus sylvestris. This one was growing on the latter substrate, on a fallen branch. 

I only have microphotos of spores left and wonder if it can be said only on the basis of spores that this is L. subtilissima or not? The spores measure 6.7 - 8.2 × 2.5 - 3.1 microns.
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  • message #67845
Hans-Otto Baral, 10-03-2021 10:57
Hans-Otto Baral
Re : Lachnellula subtilissima?
The spores look too wide for me. Important is the iodine reaction of asci and the ascus base.

Spore size reminds me of L. calyciformis, but shape and lacking drops are contradictory.
Juuso Äikäs, 10-03-2021 11:40
Re : Lachnellula subtilissima?
Ok, thanks. Too bad there isn't other info left. If I correctly remember, both the iodine rection and croziers are variable in L. subtilissima. 
Hans-Otto Baral, 10-03-2021 12:25
Hans-Otto Baral
Re : Lachnellula subtilissima?
Yes, if we really have to do with only one species.
Edward Tuddenham, 10-03-2021 15:15
Re : Lachnellula subtilissima?
How about Capitotricha bicolour? aka Dasycypha bicolor. It looks exactly like your little discomycetes. As mentioned microscopy is essential to be sure. Your spores would do for this species. I attach the figure from Boudier which does seem remarkably like your nice picture of the cups aligned along a small dead branch.
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Juuso Äikäs, 10-03-2021 15:20
Re : Lachnellula subtilissima?
Maybe Pinus sylvestris as a substrate would be a bit strange? If I remember correctly, C. bicolor is restricted to deciduous trees.
Edward Tuddenham, 10-03-2021 15:41
Re : Lachnellula subtilissima?
Good point.  It is usually on oak. But substrates can change in the fungal world. With DNA we aught to be able to tell if there is a switch or the species were actually the same all along.
Hans-Otto Baral, 10-03-2021 16:10
Hans-Otto Baral
Re : Lachnellula subtilissima?
Actually DNA is available for various substrates of C. bicolor, and the result is that there exist a number of species, including my old C. fagiseda (see paper about C. attenuans in Ascomycete.org 2019). ITS is partially very different among these cryptic species. But never I saw a fungus on conifer with such lanceolate protruding paraphyses.