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06-03-2025 23:27

Cosmospora or Dialonectria on Asterosporium asterospermum
Edvin Johannesen Edvin Johannesen

Hello!I have a collection of Asterosporium asteros

06-03-2025 21:53

Phaeosphaeria equiseti or Phaeosphaeria berlesei ?
Charles Grapinet Charles Grapinet

Hello, I found a very abundant Phaeosphaeria on t

04-03-2025 15:38

Arundinaria sps. with 3-curved germ slit verrocose spores
Hardware Tony Hardware Tony

Found on I what I think is Phyllostachys aurea, mo

06-03-2025 11:45

Hypoxylon ticinense sl?
Wim de Groot

Several smal patches of Hypoxylon ticinense (sl?)

06-03-2025 17:23

Paratricharina poiraultii ?
Vasileios Kaounas Vasileios Kaounas

Found 13/2/25 on moss, very far away, only almond

04-03-2025 21:27

Asco jaune
Yanick BOULANGER

BonsoirPetites fructifications jaunes récoltées

30-06-2018 14:36

Another Lachnum for identification
Jan Knuiman

Growing on a rotten twig of a broadleaf tree (Sali

03-03-2025 08:10

?Ostropalean fungus on wood
Juuso Äikäs

I recently found these quite small fruitbodies gro

05-03-2025 08:53

Tiny (!), white discomycete at the base of Orthotrichum affine in the company of Octospora affinis - Denmark
Thomas Læssøe

With hyper fusiform-pointy spores.https://svampe.d

03-03-2025 08:20

Petites boules blanches sur mousses dépérissantes
Bernard CLESSE Bernard CLESSE

Une idée sur ces petites boules blanches sur mou

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(Para)leptosphaeria praetermissa?
Howard Williams, 27-07-2017 13:40
Hello. In April 2017 I found this asco on a dead, cut bramble stem (Rubus fruticosus) at the edge of woodland. It keys out quite well to Leptosphaeria praetermissa in Ellis & Ellis and internet pictures also seem to correspond reasonably. In Britain at least it seems to be seldom recorded. Ellis & Ellis have it on Rubus idaeus, but there are records on R.fruticosus. Details as follow:


Fruitbodies black, ± circular, immersed with brown clypeus, breaking through surface; to 0.5mm.

Asci 75-96 x 12.5-13µm, irregularly biseriate.
Ascospores 17.5-21.25 x 6-7.5µm, 3-septate, ± elliptical, slightly constricted at septa, more so at the central septum; pale greyish-yellow in water.
Paraphyses not observed.


Substrate on dead cut bramble stem.

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