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05-06-2026 12:10

François Freléchoux François Freléchoux

Capitotricha sp. sur Lonicea caerulea Caractères

14-12-2014 18:31

Salvador Tello

Hola a todos. Tengo estos hongos que cogí ayer q

05-06-2026 11:02

Thomas Læssøe

https://svampe.databasen.org/observations/10596691

04-06-2026 23:53

Stip Helleman Stip Helleman

Dear all, someone can get acces to this article f

04-06-2026 11:36

Gernot Friebes

Hi,found on Vaccinium myrtillus.Asci: IKI –, 8-s

19-05-2026 10:27

Patrice TANCHAUD

Bonjour, récolte récente sur terre retournée i

04-06-2026 18:39

Gernot Friebes

Hi,I collected this species in two different locat

22-05-2026 13:29

Gernot Friebes

Hi,I am curious to hear your opinion on this mater

04-06-2026 15:28

Tony Cumberlidge

I have recently found the very helpful European Ke

04-06-2026 10:50

François Freléchoux François Freléchoux

Bonjour, J'ai trouvé hier un petit asco observé

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lachnum controversum
Ismael Wind, 15-05-2012 23:57
I'm asuming this is L controversum Found on Phragmites, spores 11-12.5 * 1.8-2.5. I'm confused because of the dark tufts. Is that normal?
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Hans-Otto Baral, 16-05-2012 08:57
Hans-Otto Baral
Re : lachnum controversum
Hi

I do not understand what you mean with dark tufts. The quite uninflated hair tips speak for controversum., at least in a broad sense (there is also a L. winteri which has suich large spores, but is usually yellow).

Important would be to look for the croziers which are absent in controversum. Also, the living paraphyses and hairs need to be filled with conspicuous droplets (VBs) that evoke the reddening of the bruised apothecia.

Zotto
René Dougoud, 16-05-2012 09:17
Re : lachnum controversum
Cher Collègue,

Voici quelques documents photographiques et dessins de cette belle espèce, ici sur Phragmites australis

Cordialement

René
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Hans-Otto Baral, 16-05-2012 09:27
Hans-Otto Baral
Re : lachnum controversum
I add two drawings of mine, one showing the absence of croziers, the other that adding KOH completely removes the VBs.



Zotto
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Ismael Wind, 16-05-2012 09:29
Re : lachnum controversum
with dark tufts i mean picture 3. Picture 6 shows why its red i suppose. I will look for VB's. If those are not there it is winteri?
Ismael Wind, 16-05-2012 09:32
Re : lachnum controversum
thanks for those pictures! Makes it clear. What exactly is crozier? Hooks at the bottom?...
Hans-Otto Baral, 16-05-2012 09:33
Hans-Otto Baral
Re : lachnum controversum
Both controversum and winteri have VBs. In winteri they are often bright yellow, but I am not sure whether winteri may aölso occur in a white form and differs from controversum in larger spores. Also I think that croziers are absent in both.

The dark tufts is air being trapped between the rough hairs.

Croziers: two septa at the ascus base, one forming a bow at the cell below.

Zotto
Ismael Wind, 16-05-2012 09:59
Re : lachnum controversum
air, i wouldnt have thought that! So the entire margin as seen on picture 5 is trapped air?
Hans-Otto Baral, 16-05-2012 10:03
Hans-Otto Baral
Re : lachnum controversum
Yes, I would say so. It is quite difficult to remove such disturbing air. I tried with SDS but maybe I do not have enough patience, and maybe such detergents are also a bit toxic to the fungus.
Ismael Wind, 16-05-2012 10:42
Re : lachnum controversum
well tried to focus on ascus. It does seem to have septs. Tried to get a good picture failed sorry.. Hope picture brings some clarity. Last picture VB in parafyse
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Hans-Otto Baral, 16-05-2012 11:18
Hans-Otto Baral
Re : lachnum controversum
Could be, but your pictures are not sharp enough, sorry
Ismael Wind, 16-05-2012 11:46
Re : lachnum controversum
it does have septs just cant get a clear picture
Hans-Otto Baral, 16-05-2012 11:49
Hans-Otto Baral
Re : lachnum controversum
It is actually possible from detached asci to recognize the absence of croziers.
If you see only a truncate ascus base with one septum, then it is quite clearly without croziers.


The reverse ( presence of croziers) is not so clear thereby.

Ismael Wind, 16-05-2012 11:53
Re : lachnum controversum
aha one learns everyday! im just a beginner. then it hasnt croziers. so controversum then yes?
Hans-Otto Baral, 16-05-2012 11:57
Hans-Otto Baral
Re : lachnum controversum
in a wide sense yes. The problem with L. winteri is still not very clear to me, I mean generally. If L. winteri can also be white, yours could be that species.