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18-11-2025 18:26

Literature search
David Malloch David Malloch

I am trying to locate the article, Müller, E. 195

23-11-2025 11:16

Allophylaria on Geum urbanum
Bohan Jia

Hi,  I found small discs growing on dead stem of

21-11-2025 10:56

Ascomycete on Humulus
Christopher Engelhardt Christopher Engelhardt

Very small (~0,5 mm) white ascos, found yesterday

21-11-2025 15:22

asco 21-11-25
Vasileios Kaounas Vasileios Kaounas

Found in moss, forest with Pinus halepensis. Dime

21-11-2025 10:47

Mollisia sp.
François Freléchoux François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

21-11-2025 10:50

Orange small asco?
Mirek Gryc

Hello Please help me identify this little asco.It

21-11-2025 11:52

Sepultaria arenicola
Jean-Luc Ranger

Bonjour à tous, on voit toujours 2 espèces areni

29-06-2016 18:06

Encoelia
Elisabeth Stöckli

Bonjour,Trouvé sur branches mortes cortiquées de

14-11-2025 16:26

Small species on Cytisus scoparius
Marian Jagers Marian Jagers

Hello everyone, On dead wood of Cytisus scoparius

17-11-2025 21:46

Lachnum impudicum
Philippe PELLICIER

Bonjour,Récolté sur bois pourrissant de feuillu

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Bisporella sulfurina?
William Slosse, 11-03-2017 21:28
William SlosseI always find it hard to distinguish citrina from sulfurina.
Am I right that this one is sulfurina?

° Matured spores with mostly 4 oildrops and one septated / 10.54x2.98mu
° asci with no croziers
° growing in clusters

Thx in advance,

William
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Hans-Otto Baral, 11-03-2017 21:42
Hans-Otto Baral
Re : Bisporella sulfurina?
It is not easy to confuse these two species! What you show is clearly B. sulfurina (or now Calycina claroflava). When you apply Lugol you will not see an amyloid apical ring whereas B. citrina (Calycina citrina) reacts blue or dirty red at higher concentration.