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15-01-2019 17:32

Ethan Crenson

Hello, In the Bronx, New York City last Saturday

18-12-2015 19:03

Joop van der Lee

I am looking for the following documentation:  

15-01-2019 00:22

Marcel Heyligen Marcel Heyligen

I found this asco by chance on the fruits of Capse

14-01-2019 15:56

Per Marstad Per Marstad

This was growing on a subiculum (see photo).Spores

13-01-2019 13:32

Andgelo Mombert

Bonjour à tous, Sur branchette d'Abies alba, le

13-01-2019 21:29

Ethan Crenson

I find this unknown (to me) asco in the same locat

13-01-2019 19:04

Sven Heinz Sven Heinz

Hello together, i am looking for this literature.

12-01-2019 14:05

Viktorie Halasu Viktorie Halasu

Hello forum,is this correctly identified as Ceutho

12-01-2019 13:29

Marc Detollenaere Marc Detollenaere

Hello forum, On rabbit dung that I collected 2 we

12-01-2019 15:40

Viktorie Halasu Viktorie Halasu

Hello forum,there is another anamorph from Hedera

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Unknown schizothecium
Joop van der Lee, 09-12-2018 23:06
Found on cow dung. Fruitbody is covered with tufs of agglutinated hairs starting in the neck area.
Fruitbody: 249.0x127.35 um (without the neck), neck 22.1x44.1 um. Tufs of agglutinated haris 64.8-79.2 um. These tufs do not crown the neck like in S. conicum.
Asci: 244x19.3 um (when spores are uniseriate) and 244x30.9 um (when biseriate at the top part of the ascus). Ascus has as a curling long stipe of 71.5 um.
Spores: uniseriate at first, but soon biseriate with one row of 6 spores and 2 spores near the top in the second row. 27.3-28.5x15.1-15.7 um, pedicel 8.7-9.4x2.4-2.8 um, upper cauda 22.4x4.10 um, longitudinally grooved, secondary cauda at the end of the pedicel 13.8x2.0 um, 6 lateral caudea along the whole length of the pedicel with variable length and width.
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Sven Heinz, 10-12-2018 20:56
Sven Heinz
Re : Unknown schizothecium
Hello Joop,

in my opinion it is Schizothecium conicum. It is a very variable mushroom!

Greetings Sven
Yulia Lytvynenko, 11-12-2018 05:15
Re : Unknown schizothecium
Hello! Yes, why not Schizothecium conicum? Are you confused 6 lateral caudea?
Michel Delpont, 11-12-2018 08:15
Michel Delpont
Re : Unknown schizothecium
S.conicum or S.aloides can occur with some vatiations. It happened to me to find the latter several times with little hair on the top or even not at all.

Michel.
Joop van der Lee, 13-12-2018 23:21
Re : Unknown schizothecium
Hello Yulia,

No I am not confused but I want to know if there is a difference in the total number of lateral caudea between Schizothecium species.

I do think there is a difference between S. aloides and S. conicum but I do not have proof.

What I did find are black spots in the pedicel representing points where the cauda did break off from the pedicel. But it does not indicate the total number of caudea because we do not have the the whole pedicel in a 360 degree view. 

Photo #1 is from S. aloides
Photo #2 is from S. conicum
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Yulia Lytvynenko, 14-12-2018 06:40
Re : Unknown schizothecium
Dear Joop,
I agree that hairs are a very variable sign. So for the Schizothecium conicum many authors describe the hairs covering only the upper part of perithecium and forming a collar of agglutinated triangular scales at the neck base.
But more than once I observed samples of S. conicum, in which the hairs are evenly cover the entire perithecium and do not form a well-visible collar.
As for appendages, much less attention is paid to this feature. I have read the works of many authors. In some of them, lateral caudea are not mentioned at all.
For S. conicum and S. aloides describe only the lower cauda at the apex of the pedicel and continuous with a thin gelatinous sheath over the pedicel. ... or basal cauda as a gelatinous sheath surrounding pedicel ... or caudae not observed.
Practically no one describes the whorl of small secondary appendages at the base of the pedicel or over the pedicel. F. Doveri describes similar appendages near the base of the pedicel, near the septum: two for the S. aloides and one to three for the S. conicum. I also can not always see them when studying samples. I think that the presence of appendages depends on the degree of maturity of the samples.
Best regards,
Yulia
Michel Delpont, 14-12-2018 16:26
Michel Delpont
Re : Unknown schizothecium
Hello Joop!

Also beware of artefacts, it is quite difficult to highlight some appendages, which can cause confusion and errors.

Michel.
Yulia Lytvynenko, 15-12-2018 05:40
Re : Unknown schizothecium
P.S. Joop, did you try to use Aqueous Cotton Blue or any other dye for staining the hyaline appendages?
Joop van der Lee, 15-12-2018 18:05
Re : Unknown schizothecium
Hello Michel,


No I did not, but I can try.
And I do agree with Yulia that the fruitbody has to be mature but not too mature for then the asci inside the fruitbody are desolved and the fruitbody is filled with spores also no appendages are present.

Joop