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29-12-2025 08:30

Josep Torres Josep Torres

Hello.A tiny ascomycete sprouting under Juniperus

29-12-2025 10:15

Hulda Caroline Holte

Hello, I found and collected this propoloid ascom

29-12-2025 09:38

Oskari Virtanen

Hi,could anyone help me identify this, I suspect P

24-12-2025 18:12

Ethan Crenson

Hello all, A friend found this Orbilia growing on

28-12-2025 12:08

Margot en Geert Vullings

This possible Karstenia was found on the bark of d

21-12-2025 21:32

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

26-12-2025 21:19

Arnold Büschlen

Pithyella chalaudii Priou. Ist als Bryoparasit in

21-12-2025 09:32

Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

18-12-2025 21:17

Pol Debaenst

The identification took me to Byssonectria deformi

21-12-2025 12:34

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

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Propolis sp. on Pinus sylvestris
Hulda Caroline Holte, 29-12-2025 10:15
Hello,

I found and collected this propoloid ascomycete scarcely growing on the bark of a living tree (Pinus sylvestris) on the 12th of December, this year. It was found in the same area as my previous post (Fagerfjell, municipality of Flesberg, Buskerud county), but on a different locality. This locality is an open, old, pine dominated forest about 610 m.a.s.l.


The ascospores are cylindrical to ellipsoid and are filled with small guttules.


19,2-27,2 x 11,2-14,4 µm


Me= 21,9 x 12,31 µm


The spore wall is about 0,96-1,5 µm (living) and 1,7-2,8 µm (dead)


The asci are about 126-147 x 18 µm (dead)


The spores were measured in the living state, but I was unable to obtain a spore print. The large variation in the spore measurements may be due to some of the spores being partially immature. All measurements were taken from fresh material in water.


Although the spores are a bit small I believe that this resembles Propolis leonis quite well. However, that species has primarily been recorded in areas close to the coast. Could this be the right species, and is anyone aware of P. leonis or a similar species being recorded from submontane regions inland?


Thank you in advance and best regards,


Hulda

  • message #84194
  • message #84194
  • message #84194
  • message #84194
  • message #84194
  • message #84194
Gernot Friebes, 29-12-2025 10:43
Re : Propolis sp. on Pinus sylvestris
Dear Hulda,

I collected P. leonis on the bark of Pinus sylvestris in the mountainous regions (Karawanken) of Carinthia, Austria, so quite far from any coast. I briefly mention this collection in the following article: https://www.zobodat.at/pdf/CAR_207_127_0449-0492.pdf. It seems to be rare in most areas of Austria since I've not been able to find it elsewhere.

Best wishes,
Gernot