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21-12-2024 12:45

Marc Detollenaere Marc Detollenaere

Dear Forum,On naked wood of Fagus, I found some ha

17-12-2024 12:33

Lothar Krieglsteiner Lothar Krieglsteiner

this fluffy anamorph was repeatedly found on decid

20-12-2024 20:30

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

21-12-2024 11:14

Michel RIMBAUD

Hello,Does somebody could send me a key for Olla/U

21-12-2024 09:08

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,  recolecta

19-12-2024 09:27

Castillo Joseba Castillo Joseba

Llevo mas de 6 meses que no puedo contactar con Re

20-12-2024 00:01

Francois Guay Francois Guay

Hi, I found this species on incubated Fir needles

20-12-2024 20:34

Enrique Rubio Enrique Rubio

Perhaps some of you can help me identify this smal

18-12-2024 10:05

ruiz Jose antonio

Buenos días a todos, un pequeño ascomiceto de un

20-12-2024 17:32

Louis DENY

Bonsoir forumTrouvé à Belfort, 400 m altitude, s

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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.