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09-11-2025 13:20

Ascomycete on Rubus.
Josep Torres Josep Torres

Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Phacidium
Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Allophylaria subliciformis?
Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

04-11-2025 14:53

Leptosphaeria?
Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

08-11-2025 09:15

Mollisia sur Pinus
Michel Hairaud Michel Hairaud

Bonjour, Pouvez vous m'aider à identifier ce Mol

06-11-2025 16:50

Hymenoscyphus sp?
Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

05-11-2025 11:33

Cladosporium ?
Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Hymenoscyphus on blueberry.
Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Protounguicularia transiens?
Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

03-11-2025 21:34

Tatraea sp. ? on Populus tremula
Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

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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.