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17-08-2020 19:15

Mirek Gryc

Hello all.A friend sent me this one dried fruit. A

17-08-2020 14:20

Lothar Krieglsteiner Lothar Krieglsteiner

.. in the Eifel, Germany, about 550 m NN, 10.8.202

09-08-2020 07:55

Lothar Krieglsteiner Lothar Krieglsteiner

... maybe Molinia, in an acid bog (near Narthecium

17-08-2020 11:55

Markus Wilhelm

Bonjour,En débit de sècheresse, je trouve cette

16-08-2020 21:00

Edouard Evangelisti Edouard Evangelisti

Bonjour à tous, Je reviens vers vous avec une Sc

16-08-2020 15:06

Juuso Äikäs

A couple days ago I found a large group of Trichop

16-08-2020 16:28

Mirek Gryc

Hi.I have a problem with this Peziza so I would li

13-08-2020 19:44

Lothar Krieglsteiner Lothar Krieglsteiner

... last week in the Eifel (Germany). It looks mac

13-08-2020 21:47

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur tige morte d'une plante suffrutescen

13-08-2020 19:22

Pavol Palo

Hello friends, may I ask you for help ? I would n

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Yellow asco.
Mirek Gryc, 17-08-2020 19:15
Hello all.
A friend sent me this one dried fruit. After moisturizing about 2.5 mm. According to a friend's account, it grew on the ground, but there are also mosses nearby.
Almost all the traits fit Hymenoscyphus epigaeus (= Phaeohelotium epigeum), now rather Bryoscyphus?
However, I am puzzled by quite large spores, I measured a few:
Me = 16.9 × 3.8 µm; Qe = 4.5

18.19 3.50
20.35 4.46
14.33 3.58
16.31 3.57
16.86 3.71
15.16 3.78
As you can see from the photos, the spores are already septate in ascus.
Croziers (+)
Reaction to iodine fairly gentle but regular (BB)
Sorry for the bad quality of the photos, but it is difficult to get a clear image from hydrated material.
best regards
Mirek

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Hans-Otto Baral, 17-08-2020 20:16
Hans-Otto Baral
Re : Yellow asco.
Oh, that will hardly be solved without vital characters. Spore septation has little to say as it usually occurs in overmature spores (only inside asci which are in dead state).

Phaeohelotium epigaeum I would exclude, more probable is P. monticola (or perhaps P. epiphyllum).

Zotto
Mirek Gryc, 17-08-2020 20:40
Re : Yellow asco.
Thank you Zotto!

Due to the substrate, I did not think about these species.

Probably you are right:)

In my case, H. epiphyllus, due to the constant lack of moisture, usually grows on decaying stumps or thicker pieces of wood. In wet weather, also on finer wood remnants and on bedding.
best regards
Mirek