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04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

08-11-2025 09:15

Michel Hairaud Michel Hairaud

Bonjour, Pouvez vous m'aider à identifier ce Mol

08-11-2025 12:10

Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

06-11-2025 16:50

Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

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Ombrophila species
B Shelbourne, 20-09-2024 00:16
B Shelbourne• Macro and habitat suggested Gelatinodiscaceae.
• With spores too suggests genus Ombrophila and the O. violacea group.
• Seems comparable to O. 'janthina-margarita angio'.
• I'm not sure how to separate O. 'violacea small spored' but there are only two observations outside Europe.

Habitat: On angiosperm log, sawn-end (decorticated), surface blackened and well decayed, quite saturated, on the ground, amongst herbaceous plants, close a stream, generally damp and occasionally flooding, mixed deciduous woodland, Low Weald, England, mid-September.

Apothecia: Pale pink-violet in maturity, diameter < 5 (~7) mm, glassy-translucent, turbinate-discoid, densely caespitose and overlapping in maturity, superficial, very short and thick stipe, appressed, uneven/pitted surface, internally jelly-like, margin indistinct, uneven and slightly lobate, undulating, out-rolled, disc convex in maturity (when unrestricted), soft and gelatinous texture, no evidence of a subiculum, with tiny capitate conidiophores of a seemingly unrelated anamorph on the surface (possibly a parasite).

Asci: Surprisingly small relative to the apothecia, mature and turgid ~65-75 x 6-7 (7.5) um, cylindrical-clavate, 8-spored, obtusely biseriate when turgid, one spore at the apex, croziers, rings bb, form looks typical for Ombrophila (Baral, 1987), apex rounded-truncate, more acute-truncate when flaccid, distinct thickening and more truncate when flaccid, walls also showing some thickening, no noticeable dextrinoid reaction from contents, many discharging in water mount after some time.

Spores: Ellipsoid, homopolar, poles rounded, a +/- symmetric large globose LBs at each pole and some smaller ones (~1-3).

Free spores in water: (5.1) 5.4 - 6.2 (6.4) × (3.2) 3.5 - 3.7 (3.9) µm, Q = 1.5 - 1.7 (1.8), n = 30, mean = 5.8 × 3.6 µm, Q mean = 1.6.

Paraphyses: Narrow cylindrical, width ~2-3 um, apex often slightly inflated, multi-septate, with cylindrical hyaline VBs, reddish en masse.

Medullary: Loose textura intricata, highly gelatinised, narrow hyphae, numerous small to medium hyaline crystals.

Ectal: Textura prismatica, with a large guttule in many cells, seems to be a gelatinised layer on the surface but contents not clearly seen.
  • message #80204
  • message #80204
Hans-Otto Baral, 20-09-2024 10:04
Hans-Otto Baral
Re : Ombrophila species
Yes, from the relationship of O. jamthina s.auct., a very complex group which requires DNA study.