Accès membres

Mot de passe perdu? S'inscrire

13-10-2020 18:26

Yellow Discomycete on Soil
Charles Aron Charles Aron

Hi All, For a couple of months I have been findin

13-10-2020 19:19

Hymenoscyphus ¿?
Garcia Susana

Hola, He recogido estos apotecios que crecían so

12-10-2020 19:35

Orbilia on Cornus
Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte de Cornus sanguinea en

11-10-2020 20:48

Champignon imparfait sur mousse
Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Peut-être trouverez-vou

12-10-2020 15:06

Calycellina?
Juuso Äikäs

I found these growing on a dead herbacious stem. I

12-10-2020 18:32

Orbilia on pine
Lepista Zacarias

Dear all,I collected the samples from the wood of

10-10-2020 14:34

Hymenoscyphus (?) with balloon-like inflated paraphyses
Edvin Johannesen Edvin Johannesen

This was found in a moist ravine on (probably) Ulm

13-10-2020 00:17

Ciboria on litter of Ceratonia siliqua
Stephen Martin Stephen Martin

I was digging through decaying litter of Ceratonia

10-10-2020 11:46

A beautiful piece of art by Podospora setosa species
Joop van der Lee Joop van der Lee

Found on rabbit pallets.I have never seen this phe

10-10-2020 21:02

Hymenoscyphus subferrugineus?
Chris Yeates Chris Yeates

Bonsoir tous I am fairly certain with this, but w

« < 378 379 380 381 382 > »
Yellow Discomycete on Soil
Charles Aron, 13-10-2020 18:26
Charles Aron

Hi All,


For a couple of months I have been finding yellow apothecia on bare damp soil in shrub borders of my garden. They are 1-3mm and bowl to disc shaped. The spores are usually multiguttulate and measure 15-21x9-10 and the cylindric asci are 200-280x10-13. No blueing in iodine was observed. Did not find croziers. The paraphyses are curved, septate and slightly swollen to 3 at the apex. A distinctive feature is that the paraphyses and ascus tips are glued together with yellowish amorphous matter. In Melzer's this disperses into yellow drops. Excipulum is a Textura Globosa. I think we are looking at an operculate disco but am struggling even to get to genus.


Thanks in advance,


Charles.

  • message #65365
  • message #65365
  • message #65365
  • message #65365
  • message #65365
  • message #65365
  • message #65365
Chris Yeates, 13-10-2020 20:46
Chris Yeates
Re : Yellow Discomycete on Soil
Hello Charles

My first thought was something like Cheilymenia vitellina - any inconspicuous marginal hairs?

Best

Chris
Lothar Krieglsteiner, 13-10-2020 20:49
Lothar Krieglsteiner
Re : Yellow Discomycete on Soil
Hello Chris,
Cheilymenia I know without conspicuous contents of the spores (?).
Best regards, Lothar
Charles Aron, 13-10-2020 21:21
Charles Aron
Re : Yellow Discomycete on Soil

Hi Chris,


Not aware any hairs. Also a bit small for C. vitellina


Cheers,


Charles.

Charles Aron, 13-10-2020 21:32
Charles Aron
Re : Yellow Discomycete on Soil

Here is a slightly better photo of the apothecia, this time with sparse mosses, but in other spots there was no moss at all.


Charles.


I have received the suggestion of Boubovia/Pseudoboubovia from Marcel Vegas. I think I had ruled out Boubovia but I was unaware of Pseudoboubovia. It turns out that Pseudoboubovia benkertii, with its multiguttulate ascospores, is an excellent fit!

  • message #65374
Chris Yeates, 13-10-2020 22:44
Chris Yeates
Re : Yellow Discomycete on Soil
Nice!

New to UK? New genus for UK? I suspect the national fungaria will be interested . . .

It just goes to show what is out there; I tend to collect in less than "prime" habitat and still find interesting things (albeit generally quite small things ;-) )
Charles Aron, 13-10-2020 23:18
Charles Aron
Re : Yellow Discomycete on Soil

Hi Chris,


Wel, I always scan the soil surface when I'm gardening. Just in case! It turns out that this fungus is associated with my Cupressus hedge!


Yes, I think the genus might be new to Britain and I'll let Paul Cannon know.


Best wishes,


Charles.