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02-12-2025 18:59

Malcolm  Greaves Malcolm Greaves

This pair of ascos 2.5cm across were on recently b

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Buckwheat Pete

Hello, can anyone identify this hairy fungus growi

02-12-2025 14:28

Mirek Gryc

527 / 5 000Hello everyoneThey grew on dead shoots

30-11-2025 12:53

Edvin Johannesen Edvin Johannesen

White short-stipitate apothecia found on thin twig

30-11-2025 10:47

William Slosse William Slosse

I recently found a collection of small Peziza sp.

27-11-2025 12:01

Thomas Læssøe

https://svampe.databasen.org/observations/10496727

27-11-2025 11:46

Thomas Læssøe

https://svampe.databasen.org/observations/10493918

17-09-2025 10:50

Heather Merrylees

Hi there!I am hoping for any advice on the identif

29-11-2025 08:40

Andreas Millinger Andreas Millinger

Hello,on a splintered part of a branch on the grou

28-11-2025 16:45

Nogueira Héctor

November 23, 2025 Requejo de Sanabria (León) SPAI

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Hyaloscypha aureliella on Pinus sylvestris
B Shelbourne, 11-11-2024 23:17
B Shelbourne• Macro and habitat suggest Hyaloscyphaceae s.l.
• Hyaloscypha suggested by hairs and spores.
• Spores, asci, hairs, and substrate, seem to suggest H. aureliella.
• Subiculum and conidia look similar to photos of CBS 126298.

Habitat: On the underside of two pieces of wood from Pinus sylvestris, a part of a small branch and a broken part of a larger piece of wood, mostly on decorticated parts, damp when found, on the floor, grassy and exposed locations, 175 m alt., Old Lodge nature reserve, Ashdown Forest, High Weald, southern England, early-November.

Apothecia: Apparently sometimes arising from a +/- dense subiculum, could be an anamorph, whitish to pinkish-orangish to brownish, appearing downy or foam-like with hyphae difficult to distinguish, gregarious to 6+-caespitose, many 10s of apothecia on the larger piece, diameter (0.35) 0.40-0.53-0.75 (0.93) mm, sessile, superficial, whitish-translucent with some hints of orangish-brown.

Low magnification: Cupulate to slightly urceolate, eventually more discoid, receptacle and margin whitish with many short hairs, often with a moderate number of large drops of golden-brownish exudate around the flanks, disc concave, more translucent with a gelatinous appearance, margin round or occasionally lobate, often compressed by the environment, hairs noticeable and more reflective, apparently remaining raised above the disc.

Asci: Turgid ~54-63 x 7-8 µm, croziers, rings bb, more like Calycina-type?

Spores: Ellipsoid-clavate, several small LBs towards each pole, OCI < 1, asymmetric or sometimes slightly curved in profile view.

Free spores in water or in mature asci:
(8.2) 8.4-9.6 (10.3) × 2.2-2.6 µm, Q = (3.3) 3.4-4.0 (4.4), N = 23, mean = 9.0 × 2.4 µm, Q mean = 3.8.

Paraphyses: Apparently few, filiform, apex not to slightly inflated, width ~2-3 µm, septate, no notable contents.

Hairs: Protruding part ~45-55 (60) x 3.5-4.0 µm, flexible, tapering to a rounded end, aseptate, hyaline, some agglutinated with very large drops of oily golden exudate, leaving many small globules on the hairs, one or two globose to sub-globose basal cells.

Medullary: Not seen clearly, possibly reduced.

Ectal: Text. prismatica to globosa-angularis, many small patches of amyloidity.

Conidia: Stuck to the receptacle, light brown walls, all seen with two globose cells, one appears to be developing another septum, septal pore often noticeable.
  • message #80645
  • message #80645
  • message #80645
Hans-Otto Baral, 12-11-2024 09:11
Hans-Otto Baral
Re : Hyaloscypha aureliella on Pinus sylvestris
For sure. The conidia I do not remember. What is the link to the CBS sample?
B Shelbourne, 12-11-2024 09:27
B Shelbourne
Re : Hyaloscypha aureliella on Pinus sylvestris
There is a figure in your folder (https://drive.google.com/file/d/1RfRKdt0KgJYIKcH83L5Fp7pe1vsFSXly/view?usp=drive_link), with the citation Fehrer et al. 2018. I think this is the paper showing Meliniomyces/Rhizoscyphus is in Hyaloscypha.
Hans-Otto Baral, 12-11-2024 09:48
Hans-Otto Baral
Re : Hyaloscypha aureliella on Pinus sylvestris
Ah o.k., these 3-4-celled and partly branched conidia. I never saw them in nature.
B Shelbourne, 12-11-2024 10:20
B Shelbourne
Re : Hyaloscypha aureliella on Pinus sylvestris
It may be unrelated, but some of the apothecia seem very integrated with the mycelial mat and there are some similarities with the appearance of the culture and conidia.

I am also reminded that Kosonen et al. recommended promotion of subgenus Eupezizella, defined mostly by aseptate hairs with resinous exudates.


B Shelbourne, 14-11-2024 11:04
B Shelbourne
Re : Hyaloscypha aureliella on Pinus sylvestris
I had another look at the substrate and there are many fungi coinhabiting, so I think the conidia probably belong do a different fungus. I also sampled an area of thick orangish mycelium and it appears to be (mostly) a corticoid basidiomycete. There are some very large hyphae without clamps and some smaller hyphae at the edges with clamps.
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