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11-02-2026 22:15

William Slosse William Slosse

Today, February 11, 2026, we found the following R

11-02-2026 19:28

Lothar Krieglsteiner Lothar Krieglsteiner

on small deciduous twig on the ground in forest wi

25-04-2025 17:24

Stefan Blaser

Hi everybody, This collection was collected by JÃ

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

10-02-2026 17:42

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me donner

10-02-2026 18:54

Erik Van Dijk

Does anyone has an idea what fungus species this m

09-02-2026 20:10

Lothar Krieglsteiner Lothar Krieglsteiner

The first 6 tables show surely one species with 2

09-02-2026 14:46

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

09-02-2026 11:42

Ã…ge Oterhals

Hi forum, I found this Lachnum on old hardwood tw

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

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Inoperculate from Borneo
Zuzana Sochorová (Egertová), 04-03-2015 21:28
Zuzana Sochorová (Egertová)Hello,
these fungi grew in a large group in a primary rainforest in East Kalimantan, in litter, some fruitbodies grew on a fruit of a tree.
Disc measured 6-13 mm in diameter, was grey, somewhat frosty, slightly convex, sometimes deepen in the middle, sometimes saddle-shaped, smooth, often waved in older fruitbodies.
Lower side brown, slightly wrinkled or smooth.
Stipe was of the same colour as the lower side, narrowing toward the base, little bit wrinkled in the upper part, 19-55 mm long, 0,5-3 mm broad. The stipes were sometimes growing together.
Asci inoperculate, cylindrical, with amyloid inner ring, octosporic, with uni- to biseriate arranged spores, 85-110 x 4,5-6 micrometers.
Spores 8-10 x 3,5-4,2 micrometers, ellipsoid-ovoid, hyaline, smooth, without septa.
Paraphyses filiform, hyaline, straight or slightly bent, 1 micrometer broad, septate.
Rough brown hairs on the outer surface.
Excipulum of textura porrecta (?).
Some Rutstroemiaceae or Sclerotiniaceae?
Zuzana
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Hans-Otto Baral, 04-03-2015 21:44
Hans-Otto Baral
Re : Inoperculate from Borneo
Looks very interesting. I first supposed it is more a Helotiaceae. The apical ring should be seen in higher magnification. But you may be right: the ring shows an inner protrusion like two dots, unlike Hymenoscyphus. And the warted hairs fit also Rutstroemiaceae better.

The excipulum would be important to see, perhaps in a section. Anyway this will be difficult to identify.

Zuzana Sochorová (Egertová), 05-03-2015 06:50
Zuzana Sochorová (Egertová)
Re : Inoperculate from Borneo
Hmm, thank you, Zotto.
I probably cannot do more with this mushroom than I have already done... would someone be as kind to look at it? The collection is rich, including both young and old fruitbodies.
Zuzana