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02-12-2025 18:59

Malcolm  Greaves Malcolm Greaves

This pair of ascos 2.5cm across were on recently b

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Buckwheat Pete

Hello, can anyone identify this hairy fungus growi

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Mirek Gryc

527 / 5 000Hello everyoneThey grew on dead shoots

30-11-2025 12:53

Edvin Johannesen Edvin Johannesen

White short-stipitate apothecia found on thin twig

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William Slosse William Slosse

I recently found a collection of small Peziza sp.

27-11-2025 12:01

Thomas Læssøe

https://svampe.databasen.org/observations/10496727

27-11-2025 11:46

Thomas Læssøe

https://svampe.databasen.org/observations/10493918

17-09-2025 10:50

Heather Merrylees

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29-11-2025 08:40

Andreas Millinger Andreas Millinger

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Nogueira Héctor

November 23, 2025 Requejo de Sanabria (León) SPAI

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Sydowiella fenestrans literature
Chris Johnson, 08-02-2015 14:12
Hello All

I am looking for literature for this species that includes measurements of asci AND paraphyses.

Grateful for any help.

Regards, Chris
Chris Yeates, 08-02-2015 22:21
Chris Yeates
Re : Sydowiella fenestrans literature
Hi Chris
I'm a bit confused; in Sydowiella, as in all the members of the Diaporthales, to quote Barr in "The Diaporthales in North America" in Mycologia Memoir 7 (1978) "The centrum of members of the Diaporthales is pseudoparenchymatous in early stages of development; paraphysis-like broad bands of cells may remain in the centrum, but typically no such structures are present in mature perithecia" (my underlining).
Perhaps that is why you have been unable to find a reference to paraphyses?

Below is the relevant page from Margaret Barr's work, which does give details of ascus measurements.

best wishes
Chris
Peter Püwert, 09-02-2015 01:07
Peter Püwert
Re : Sydowiella fenestrans literature
Hi Chris,
I have send You a mail with references to Sydowiella fenestrans.
Greetings
Peter.
Chris Johnson, 09-02-2015 09:41
Re : Sydowiella fenestrans literature
Hi Chris & Peter

Many thanks for the helpful literature.

Chris - I found some pseudoparenchyma material in an immature perithecium which I mistakenly thought were pharaphyses. They were diminutive making me doubt my own measurements. It didn't help finding this drawing suggesting paraphyses the same size as the asci. http://mushroomobserver.org/image/show_image/432105?obs=169191

Best wishes,

Chris