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24-08-2024 22:11
![Thierry Blondelle](/uploads/user_vgn/-0211.jpg)
Bonjour,Récolté au milieu d'un ruisseau. Est-il
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22-08-2024 17:10
![Zuzana Sochorová (Egertová)](/uploads/user_vgn/Egertova-0001.jpg)
Hello,I have this collection of Ciboria gallincola
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22-08-2024 17:59
![Edvin Johannesen](/uploads/user_vgn/Johannesen-0001.jpg)
Hi!I just wonder if Peziza badia can exude plenty
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20-08-2024 23:32
Alden DirksAny ideas on what this Leotiomycetes growing on Ph
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21-08-2024 17:40
dit JERRY (Joseph-Ernest) THORNBonjour,Ce petit champignon vert a été récolté
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18-08-2024 14:08
Pablo ChacónHola. De vuelta con otra Genea. . Llego a Pseudove
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18-08-2024 23:25
Patrice TANCHAUDBonjour, récolte réalisée en décembre sur feu
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16-08-2024 14:04
![Viktorie Halasu](/uploads/user_vgn/Halasu-0001.jpg)
Hello, for the first time I've collected a Mollis
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18-08-2024 12:35
Pablo ChacónBuenos días,Os presento una Scutellinia que piend
I found a strange (to me) coelomycete growing as well on fallen needles of Picea abies as on Cladonia digitata growing at the foot of the tree.
Description: Conidiomata solitary, sessile, on the squamules and podetia of Cladonia digitata, cushion-like to suborbicular, black, 100–150 µm in diam., opening by radially splitting of the wall (habitually like the peristome of bryophytes); wall brown, composed of one layer of pseudoparenchymatous cells, 1–2 µm thick, cells in surface view more or less in radial lines, rectangular, c. 3–4 × 4–4.5 µm; pycnidial cavity first filled with thin-walled, hyaline, isodiametric cells, 3–4 µm diam., later these cells are dissollving, some of them turning to broadly ampulliform conidiogenous cells, 4–6 × 3.5–5 µm; conidia non-septate, ellipsoid, hyaline, both ends rounded, with one minute guttule near each end, (3.5–)4.1–5.3(–6.0) × (2.0–)2.1–2.7(–3.0) µm, l/b = (1.3–)1.7–2.3(–2.8) (n = 20).
Strange to me is the splitting of the pycnidial wall and the conidiogenous cells developing inside the lumen and not on the inner side of the wall. Fist idea was Rhizospaera, but this has other pycnidia. Actinothyrium has fitting pycnidia, but here the conidia are filiform. Can anyone help?
Hi Wolfgang,
Strange to find these thyriothecia on needdles as on Cladonia. On needles grow Microthyriaceae. On Cladonia we can observe some Lichenopeltella. ¨Pehaps you have the asexual morph of one of them, and the best thing to do is probably to wait for the sexual morph.
Alain
I examined it carefully, it is really the same taxon on the needles as on Cladonia. Microthyriaceae is a good hint, but I have no idea how asexual state of this family look like. Lichenopeltella I think I can exclude because of the missing basal plate and the thickenings around the ostiole.
Wolfgang