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20-05-2026 17:47

Margot en Geert Vullings

We found this Mollisia on dead Juncus stems mown l

22-05-2026 14:47

Gernot Friebes

Hi,superficial ascomata collected on bark of a liv

22-05-2026 14:44

Lothar Krieglsteiner Lothar Krieglsteiner

in unripe condition citrine yellow, then soon fadi

22-05-2026 13:29

Gernot Friebes

Hi,I am curious to hear your opinion on this mater

22-05-2026 10:59

Nicolas VAN VOOREN Nicolas VAN VOOREN

Trouvé sur Phragmites, ce que je pense être un L

20-05-2026 21:49

Margot en Geert Vullings

We found this Lachnum on Juncus stems mown last ye

21-05-2026 17:01

Pierre Repellin

Bonjour à toutes et à tous,Je recherche l'articl

20-05-2026 20:08

Andreas Millinger Andreas Millinger

Good evening,another quite distinctive find from M

20-05-2026 12:57

Ingo Ibelshäuser Ingo Ibelshäuser

Hello everybody, on decayed hardwood e.g. Quercus

20-05-2026 18:15

Moreno Miriam

Hello! I am working on my master's thesis on the d

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Dermateaceae from Rubus chamaemorus
Nina Filippova, 14-07-2014 16:34
This quite distinctive species commonly met on stems of Rubus chamaemorus submerged in Sphagnum. It grows nearby with some Mollisia sp., but it has this distinct encrusted excipulum and dentate edge, pale vacuoles in paraphyses, so may be another genus?

Apothecia sessile or with very short stem, up to 700 mk broad, outer surface dark brown to black, rough, hymenium gray, edge shortly dentate from clumped hairs; when young dentate edge more pronounced; single or in groups on stems submerged in Sphagnum.

Excipulum from round brown cells about 10 mk, outer cells with rough brown incrustation; edge with clavate hairs sitting on 3-5 round cells, total length up to 40 mk, with the same brown incrustation; asci with crozier, with euamyloid ring, 40-47 x 4.4-5.4 mk (n=10); paraphyses narrow-lanceolate, with not contrast vacuoles, 45-50 x 3-3.5 mk; spores fusoid, heteropolar, without oils, 6.8 (5.9-7.9) x 1.7 (1.5-1.9) mk (n=20).

Date of collection: 14.07.2014, Coordinate: N60,891507° E68,673145°
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Nicolas VAN VOOREN, 14-07-2014 17:07
Nicolas VAN VOOREN
Re : Dermateaceae from Rubus chamaemorus
Maybe the genus Pirottaea...