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19-11-2019 17:35

Lothar Krieglsteiner Lothar Krieglsteiner

... also in National Park Eifel, Germany, 16.11.20

20-01-2020 14:52

Josep Torres Josep Torres

Hola.Unas imágenes del 21 de Mayo de 2018, de un

27-12-2019 04:11

Koszka Attila

On dead, still attached Sambucus-twig. Spores 6,5

22-01-2020 14:17

Chris Yeates Chris Yeates

Bonjour tous This post also links to http://www.a

20-01-2020 18:19

Valencia Lopez Francisco Javier

Hola a todos/asTengo estas Pseudombrophila sp, rec

22-01-2020 13:36

Castillo Joseba Castillo Joseba

Recolectada en hoja seca de Acebuche (Olea europae

22-01-2020 11:51

Bernard Declercq Bernard Declercq

Hi,Collected on twigs of Castanea sativa:Pycnidia

21-01-2020 21:24

Sven Heinz Sven Heinz

Hello, what kind of mushroom is this? It grows on

18-01-2020 19:03

BERNARD CLESSE BERNARD CLESSE

Bonsoir à toutes et tous,Une idée pour cet asco

20-01-2020 18:55

Andgelo Mombert

Bonsoir, Un petit discomycète vert noirâtre mes

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dark brown Otidea
Chris Yeates, 13-12-2019 16:20
Chris Yeates
Bonjour tous

this is an area I feel rather ignorant about, rarely encountering this genus. This very dark Otidea was growing at the edge of a large garden, on soil amongst Cupressus litter, almost certainly Cupressus x leylandii. I was struck by the dark colour and initially assumed it was a Peziza. However closer examination showed it to be an Otidea, although a rather cupulate one.

Paraphyses were curved at the apex, and contained tiny granules. I noticed that a number of asci contained shrunken aborted spores which had gone brown (see photo) although whether this is of taxonomic importance I don't know. The medulla contained dark encrustations and also scattered crystals (see image, in polarised light). The "warts" on the ectal margin were made up of more dark encrustations. The ascospores measured 13.2-14.8 x 6.6-7.6µm. All photographs are of living material in water.

Reference to the Persoonia monograph has led me to Otidea bufonia, my only concern is the shape of the spores, which seem to differ from others I have seen of that species. Any comments would be welcome.

Cordaliement

Chris
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Chris Yeates, 17-12-2019 01:05
Chris Yeates
Re : dark brown Otidea
Aucune idées?
François Bartholomeeusen, 17-12-2019 22:16
Re : dark brown Otidea
Hi Chris,

Compare with my finds, seems your right!

Greetings,

François


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Josep Torres, 18-12-2019 07:18
Josep Torres
Re : dark brown Otidea
Hola Chris, de acuerdo con la determinación, aunque yo le sigo llamando Otidea umbrina, al parecer hay diversidad de opiniones en cuanto a la denominación actual, segúm Mycobank debemos llamarla Otidea bufonia y según Index Fungorum Otidea cochleata, así que prefiero llamarla por su nombre anterior, es decir Otidea umbrina.
A esta la he estudiado hasta en cuatro ocasiones, dejo las medidas esporales de mis tres estudios anteriores, en mi último estudio aún tengo pendiente la medición de las esporas.´13,7;15,1 X 6,3;7,2, 14,4;15,2 x 6,2;6,6 y 15;16,8 X 6,6;8 micras.
Saludos cordiales.

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