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02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

04-08-2014 17:35

Leandro Sánchez Leandro Sánchez

Sur branche de feuillus, jusqu'à 22 mm diamètre,

05-02-2026 15:07

Vasileios Kaounas Vasileios Kaounas

Found on a fallen needle of Pinus halepensis, diam

05-02-2026 06:43

Stefan Blaser

Hello everybody, Any help on this one would be mu

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

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Small spored Pulvinula?
Tyler Bailey, 20-06-2022 18:50
I found this small cup fruiting on charred wood in a firepit that I could use some help with. NE US. Spores seemed small for Pulvinula but it could have been immature I couldn't get many to drop onto a slide.

 

Apothecia 1-3 mm On burnt wood in a campsite fireplace. Paraphysis hooked, mostly unforked very little keratinoid pigmintation, IKI-, Spores single large guttule: (7.1) 7.5-8.6 (9.2) x (6.8) 7.2-8.6 (*9.4)

Asci 147x10.6

Higher resolution pictures:

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  • message #73071
  • message #73071
Enrique Rubio, 20-06-2022 18:58
Enrique Rubio
Re : Small spored Pulvinula?
Hi Tyler
Please, compare with Pulvinula archeri.
Tyler Bailey, 20-06-2022 19:23
Re : Small spored Pulvinula?
Wow that was fast! thank you.

Using Pfister's monograph that was one had looked most promising, the only thing that didn't match besides the spore size was the paraphyses since so few were branched and there was almost no pigment in them (but widthwise they matched).
Enrique Rubio, 20-06-2022 19:48
Enrique Rubio
Re : Small spored Pulvinula?
I attach some descriptions by Huhtinen and Rifai. As you will see, the variability of some characters seems to be large.
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  • message #73074
Tyler Bailey, 21-06-2022 04:12
Re : Small spored Pulvinula?
That answers that pretty thoroughly, thanks for the descriptions as well.
Nicolas VAN VOOREN, 21-06-2022 08:03
Nicolas VAN VOOREN
Re : Small spored Pulvinula?
I agree with Enrique. P. carbonaria, another carbonicolous species, has larger ascospores.