Accès membres

Mot de passe perdu? S'inscrire

14-11-2007 11:46

Michel RIMBAUD

Bonjour. Je recommence car on me signale que les i

14-11-2007 11:41

Michel RIMBAUD

Bonjour. Je recommence car on me signale que les i

13-11-2007 18:29

Michel RIMBAUD

Bonjour. J'ai récolté un specimen dont je ne peu

13-11-2007 18:27

Michel RIMBAUD

Bonjour. J'ai récolté un specimen dont je ne peu

13-11-2007 18:25

Michel RIMBAUD

Bonjour. J'ai récolté un specimen dont la micro

13-11-2007 00:16

NC NC

Bonsoir à tous, Encore un Disco dont je n'ai auc

11-11-2007 17:50

Hans-Otto Baral Hans-Otto Baral

Bon soir anybody an idea about a Phaeostibella

09-11-2007 18:18

Alain GARDIENNET Alain GARDIENNET

L'anamorphe de Hypoxylon howeianum a-t-il un petit

09-11-2007 18:15

Alain GARDIENNET Alain GARDIENNET

Quelqu'un aurait-il une description macroscopique

09-11-2007 18:12

Alain GARDIENNET Alain GARDIENNET

Bonsoir, j'aurais 3 questions à vous poser. Afin

« < 1518 1519 1520 1521 1522 > »
Material search
Viktorie Halasu, 22-06-2021 01:00
Viktorie HalasuDear friends,

I'm looking for recent material of Rutstroemia (Lanzia) longipes from North America (ideally from the U.S., NY state) to study and compare with european collections. It would be also great if you can note some of the characters while still alive and in water mount, esp. paraphyses contents, surface hyphae, ascus and spore size. 

Thank you very much. 
Viktorie 
  • message #69246
Hans-Otto Baral, 22-06-2021 09:27
Hans-Otto Baral
Re : Material search
Hi Viktorie

do you have vital images of European longipes? I found a note that you wanted to show me some (Aug. 2020, I have only your macro MG_7211_cr2000w_rgb). As you can see I know only living spores photographed by Irina.

Zotto
Viktorie Halasu, 22-06-2021 13:46
Viktorie Halasu
Re : Material search
Hello Zotto,
yes, I have half-finished answers on several of your e-mails including this one. I'll try to put the photos together and send them. I appologize for my extremely slow tempo. 
Viktorie 
Khomenko Igor, 22-06-2021 16:39
Khomenko Igor
Re : Material search
Hi Viktorie,
Like I said in my last e-mail, I have the last year's specimen (https://inaturalist.org/observations/58764878) and if you need I can send it, but I need to know what part of it do you need, or maybe you need it all. It is not from NY state, but close. I'm probably going to find more specimens later this year in September, as I've done in the previous two years.
Khomenko Igor, 29-07-2021 22:42
Khomenko Igor
Re : Material search
Hi Viktorie,

Yesterday I collected Lanzia longipes in the location I've seen it in 2019. I posted some pictures here.
https://inaturalist.org/observations/88991407
I believe some living paraphyses have low refracting VBs. It is difficult to see (picture#8).
With surface hyphae, I'm not sure what to look for.

Hans-Otto Baral, 30-07-2021 20:51
Hans-Otto Baral
Re : Material search
Superb pics! Granular cortical hyphae are typical of Rutstroemia. Do they produce a ionomidotic reaction?

VBs I  would estimate as very weakly refractive (guttulate) to zero, so no conspicuous contents.
Khomenko Igor, 31-07-2021 06:02
Khomenko Igor
Re : Material search
No, it didn't produce ionomidotis reaction. KOH dissolved granular from cortical hyphae and the solution became yellow. At the same time, cortical hyphae became transparent and I was able to see ectal excipulum underneath it.

I uploaded the last three pictures. https://inaturalist.org/observations/88991407
Hans-Otto Baral, 31-07-2021 08:19
Hans-Otto Baral
Re : Material search
But this is ionomidotic: dissolution of a pigment that becomes visible in the medium. Yellow or red-brown are different colour types of that reaction. The term reaction is not good in my opinion, becaouse chemical reactions are often recognizable by a colour change.
Khomenko Igor, 01-08-2021 03:04
Khomenko Igor
Re : Material search
It was my mistake.
Thank you so much for your explanation.