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lachnum controversum
Ismael Wind,
15-05-2012 23:57
Hans-Otto Baral,
16-05-2012 08:57
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
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
Voici quelques documents photographiques et dessins de cette belle espèce, ici sur Phragmites australis
Cordialement
René
Hans-Otto Baral,
16-05-2012 09:27
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
Zotto
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
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
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
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
Hans-Otto Baral,
16-05-2012 11:18
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
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.
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
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.