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27-11-2025 15:41

Thomas Læssøe

Spores brownish, typically 4-celled; 26.8 x 2.4;

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

27-11-2025 11:31

Thomas Læssøe

Collectors notes: Immersed ascomata, erumpent thro

23-09-2025 13:31

Thomas Læssøe

https://svampe.databasen.org/observations/10534623

25-11-2025 14:24

Thomas Læssøe

https://svampe.databasen.org/observations/10490522

26-11-2025 18:13

Jason Karakehian Jason Karakehian

The entire run of Mycotaxon is now available throu

21-11-2025 15:22

Vasileios Kaounas Vasileios Kaounas

Found in moss, forest with Pinus halepensis. Dime

24-11-2025 18:17

ruiz Jose

Hola en madera, quizás de alnus. Esporas(12.1) 12

25-11-2025 11:03

Mick Peerdeman

Hi all,One of my earliest microscopy attempts, so

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Scutellinia scutellata?
Chris Johnson, 30-09-2013 22:40
Bonsoir

I had this Scutellinia labelled as S. scutellata but colleagues, more knowledgeable than I, question the length of setae in the close-up image. It has been suggested that S. crinita would be a better fit.


Checking the data for the two species, there seems little difference in the range of setae length: the longest setae being infrequent in both species.


Here are the data for this fungus:


Apothecium 13mm across.
Spores 20.2-22.6 x 11.9-14.0µm, with medium blunt warts.
Asci 225-255 x 16-18µm.
Setae 250-1300 x 18-60µm.


I would welcome any comments.


Best wishes,


Chris

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Beñat Jeannerot, 01-10-2013 05:15
Beñat Jeannerot
Re : Scutellinia scutellata?
Adio Chris,

Are you sure about lenght of hairs ? Or measures are given by colleagues ?
I explain : In my opinion, without measurements, I would suggest S. olivascens (form of spores, form of hairs, hairs bases...).
On the photo of hairs, I suppose a measure around 850-900 µm for the longest one...

In the case of measurements are good, S. scutellata is a big problematic species because :
- Typus was very difficult to study
- scutellata is a generic name, an epithet used for a lot of collections around the world
- DNA results suggest 2 or 3 species in one, near S. pilatii and S. crinita

So, it's possible that this collection could correspond to S. scutellata (in my sense, perhaps not in reality) but it's necessary to have more data about sporal ornementation. Here, it's not possible to say more...

But, S. crinita seems to be not a good hypothesis (measures of spores, hairs bases...)

If you want, you can make a sporogram on little slides and send me an exsiccatum (with slides).

Beñat
Chris Johnson, 01-10-2013 10:56
Re : Scutellinia scutellata?
Hello Beñat

Thank you for the detailed reply - not at all straightforward!

The hairs were my measurements and are accurate, however, the larger hairs were infrequent. I will take another sample and measure a larger number.

If I can find out how to do a sporogram, I will send you one with some dried material. Perhaps you could send me an email with your address?

Regards,

Chris
Beñat Jeannerot, 21-10-2013 06:53
Beñat Jeannerot
Re : Scutellinia scutellata?
Adio Chris,

Typical S. crinita.
Hairs, base of hairs, form of spores and sporal ornementation are typical.

Best,
Beñat
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Chris Johnson, 21-10-2013 10:28
Re : Scutellinia scutellata?
Many thanks Beñat, much appreciated.

Cordialement,

Chris