15-11-2024 20:08
B Shelbourne• Macro and habitat seem mollisiod.• Mollisia
14-11-2024 12:06
carl van den broeckOn November 8th I found very small orange discs st
14-11-2024 15:31
Bernard CLESSEBonjour à toutes et tous,Que pensez-vous de ce Sc
14-11-2024 04:18
Götz PalfnerDear community, is this Nemania carbonacea? Micros
14-11-2024 00:34
B Shelbourne• Apothecia with predominantly yellow or brown h
11-11-2024 23:17
B Shelbourne• Macro and habitat suggest Hyaloscyphaceae s.l.
12-11-2024 16:43
Ethan CrensonHello all, This weekend a friend found these dark
13-11-2024 08:01
Stephen MartinI am revising some old material again and I have t
09-11-2024 16:41
Stephen MartinHello everyone, we have recently published a paper
Possible Mollisia atlantica on a cone of Pinus sylvestris
B Shelbourne,
15-11-2024 20:08
• Mollisia suggested by excipulum and paraphyses.
• I struggled with Ingo's key but ended up around 58. M. scopiformis cf. (ellipsoid spored).
• Micro seems similar to M. atlantica.
Habitat: On a Pinus sylvestris cone, often close to the edges of the scales, under several large trees, on a hill, 208 m alt., Old Lodge nature reserve, Ashdown Forest, High Weald, southern England, early-November.
Apothecia: Diameter < ~1.25 mm, cupulate to discoid-pulvinate, dark grey with a lighter margin and eventually all light grey, often undulating or lobate, gregarious to 4+ caespitose.
Macro: Initially dark grey and globose-urceolate, receptacle with more pruinose appearance, olive coloured, gradually lightening on the flanks towards the margin, margin soon becoming whitish, remaining raised above the disc, disc becoming whitish with maturity, smooth and more gelatinous appearance, becoming plane, possibly with a localised blackish subiculum, no yellow reaction in KOH.
Asci: Turgid ~65-70 x 7.5-8.5 um, croziers, rings bb, 2-3-seriate.
Spores: Ellipsoid to slightly clavate, 1-septate in the asci, often homopolar but sometimes basal cell more elongated, OCI 0 but very lowly refractive, many spores dying quickly, becoming smaller and appear empty.
Free living spores in water: (8.6) 9.1-11.0 (11.7) × 2.4-3.0 (3.3) µm, Q = (3.1) 3.4 - 4.0 (4.5), N = 25, mean = 10.0 × 2.7 µm, Q mean = 3.7.
Paraphyses: Cylindrical, gradually widening towards the apex, ~3 um wide, filled with large cylindrical VBs, apparently few septa, apical cell appears ~2x longer than cell below.
Medullary: Shallow, hyaline-yellowish, text. porrecta.
Ectal: Text. globosa-angularis, brownish becoming olive in KOH, blackish at the surface, at the base with brown exudate and irregular hyphae.
Marginal cells: At the margin ~30-40 x 5 um, shorter and brown at the upper flanks, at the margin hyaline, with refractive VBs in the apical 2-3 cells, apical cell subglobose or more narrow and slightly asymmetric.
Hans-Otto Baral,
15-11-2024 21:01
Re : Possible Mollisia atlantica on a cone of Pinus sylvestris
Surely it is. My impression was that it is frequent in the atlantic area. But why it seems undescribed I do not understand.
Please tell me the date of collection, also for T. sulphurea.