Material search - Forum ASCOFrance

28-10-2025 22:22

Literature request

Bernard Declercq

Hello.I'm searching for the following paper:Punith

28-10-2025 22:03

Literature request

Bernard Declercq

Hello.I'm searching for the following paper:Punith

28-10-2025 19:33

Rutstroemia firma

Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

27-10-2025 19:51

Peter Welt

Who has this article? Doveri, F. 2007. Sporormiel

28-10-2025 15:37

Bright orange stalked asco

Carl Farmer

I'd be grateful for any suggestions for this strik

28-10-2025 11:29

Asco on Quercus-leaves

Tanja Böhning

Hello, I found this very small (ca 0,5mm) yellow

27-10-2025 00:34

Strange asco on Quercus acorn

Francois Guay

I found this strange species in Québec,Canada, gr

27-10-2025 15:29

A new find for a Calycina on Rubus

Michel Hairaud

Bonjour à tous, Avec Elisabeth Stöckli nous avo

26-09-2025 15:51

Sordariales sp

Jean-Luc Ranger

Bonjour, voici un ascome poussant sur crotte de la

26-10-2025 13:39

Unknown ascomycete.

Joaquin Martin

Hi,I found this fungus in a mixed forest of spruce

Material search

Viktorie Halasu, 22-06-2021 01:00

Dear 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

Hans-Otto Baral, 22-06-2021 09:27

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

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

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

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

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

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

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

Re : Material search

It was my mistake.
Thank you so much for your explanation.

Accès membres

Forum AscoFrance