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14-07-2025 11:20

Une hélotiale sur Sphagnum palustre
Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

16-01-2023 21:31

Troposporella fumosum => Troposporella monilipes
Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Hypoxylon cf ticinense
Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Jackrogersella minutella VS Hypoxylon cohaerens var. microsporum
Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Olla aff. millepunctata (croziers +) on Rubus idaeus
Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Rutstroemia ulmariae(?) on Saxifraga rotundifolia
Gernot Friebes

Hi,do you think this collection could be R. ulmari

14-07-2025 11:19

Une hélotiale sur Sphagnum palustre
Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

25-02-2023 18:36

Nectria
Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

12-07-2025 16:45

Sur écorce de Hêtre
Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'avais d'abord pensé à des stro

05-07-2025 12:38

Pyrenomycetous fungi on dead Juniperus twig
Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

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Durella
Ethan Crenson, 24-03-2022 20:43
As long as we are discussing Durella...!  I have found this Durella in New York City on several occasions.  It seems to grow on bare hardwood. I found it again last weekend in the Bronx, so the images and data are from that collection.

Apothecia are up to 1mm in diameter, brownish black, roughened and with a raised margin when dry. Cushion shaped when hydrated.


Spores (from spore drop) are hyaline, mostly 3-septate, some 4-septate, fusiform and some are a bit irregular shaped. Some spores are shorter, wider and tear-drop shaped.  Oil droplets are present.  They measure 14.7 - 27.9 (35.6) x 3.5-5.4µm.


Asci 68-87 x 8-11.1µm, no croziers, IKI-


Paraphyses branched, septate, brown at the ends and swollen up to 4-5µm wide.


In Zotto's folder for Durella, this seems to match "Durella macrospora IKI-". The spores in my collection are somewhat longer.  But I notice that they are similar in that the spores are quite irregularly shaped and some are quite small and tear drop shaped. 


Thanks,


Ethan

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Piotr Perz, 24-03-2022 20:58
Re : Durella
Are you sure about the croziers (image interpretation)?
IMO looks like CRZ+
Ethan Crenson, 24-03-2022 21:03
Re : Durella
(sigh) I'm often wrong about croziers.
Hans-Otto Baral, 24-03-2022 21:23
Hans-Otto Baral
Re : Durella
My first idea was also macrospora, but there the paraphysis tips do not carry browmn exudate and possess hyaline refractive resinous matter in the hymenium.

Patellariopsis clavispora is excluded by having a deep blue apical ring and globular excipular cells. I assume your sample has brown porrecta (please check).
Piotr Perz, 24-03-2022 21:24
Re : Durella
Try with young apothecium and very immature ascii.
Ethan Crenson, 26-03-2022 21:08
Re : Durella
Hello and thanks to you both.  First, yes, I missed the presence of croziers.  I include here a better photo.  As far as the exudate surrounding the paraphyses tips, I can't say for certain.  There is material there, but it doesn't look as if it is the same material which makes the paraphyses tips  brown. I have attempted to show the excipulum with textura porrecta.

There is a sequence of a collection very similar to this Durella (mislabeled D. melanochlora) which I found in a park in Staten Island (other end of the city) in 2019. Here is a link to the observation. The sequence is further down the page on the right. It blasts very close to another sequence that is labeled D. macrospora from the Boston Harbor Islands survey (Haelewaters,D., Dirks,A.C., Kappler,L.A., Mitchell,J.K., Quijada,L., Vandegrift,R., Buyck,B. and Pfister,D.H.)

Again, thanks!
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Hans-Otto Baral, 26-03-2022 21:24
Hans-Otto Baral
Re : Durella
This is a good addition!

I cannot see the link, could you tell me?
Ethan Crenson, 26-03-2022 21:45
Re : Durella
https://www.inaturalist.org/observations/20438540
Ethan Crenson, 26-03-2022 21:46
Re : Durella
The sequence I was given:

GAAGTAAAAGTCGTAACAAGGTTTCCGTAGGTGAACCTGCGGAAGGATCATTAGAATGAGAGCCGGTCCGCGTGGCGAGGTCTGAAAAACCCCACGTGCCAGTAAGTGACCGTAAACCTCCACCCGTGTGTATTATTCAATCGTTGCTTTGGCGGGCCGCGAGCCTCACAGGCTGGCACC GGCTTCGGCTGGGGAGTGCCTGCCAAGGGACCCAACTCTGTAATCTGTGGCCCTCTGAGTACTATACAATAGTCAAAACTTTCAACAACGGATCTCTTGGTTCTGGCATCGATGAAGAACGCAGCGAAATGCGATAAGTAATGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAA CGCACATTGCGCCCTCTGGTATTCCGGGGGGCATGCCTGTTCGAGCGTCATTTAGACCACATCGCGCGAGCGGTATTGGGGCCTGCATGCTTGCATCCCTTAAAGACAGTGGCGGTGCCACGGGGCTCTCAGCGTAGTAATTCTTCCGCTGCTGGGCGCTGGAAGCACCTGCCAAAACCCCCCACCTTCTCAGGTTGACCTCGGATCAGGTAGGGATACCCGCTGAACTTAAGCATATCA
Hans-Otto Baral, 26-03-2022 22:31
Hans-Otto Baral
Re : Durella
Ah, I did not have this sequence, although it is in GenBank.

It blasts not very close to the Boston sequence but is identical with it in the ITS, and also ERD 6117 is 100% identical.

The similarity to the amyloid macrospora is 92.3%.

So I was wrong in doubting this to be macrospora. And I do not know if the old type of macrospora was IKI+ or IKI-.