28-04-2024 18:05
Bernard CLESSEBonsoir à toutes et tous,J'ai trouvé ce matin ce
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Thierry BlondelleHiOn Hedera helix fallen branchEcological habitat:
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Mathias HassHello, Does anyone know what this is? Found on J
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éric ROMEROBonjour, J'ai trouvé ce Lasiobolus sur laissées
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Lothar Krieglsteiner... but likely a basidiomycete. I hope it is o.k.
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Edouard EvangelistiBonjour à tous, Je viens de récolter ce que je
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Ethan CrensonHello all, A friend recently found this orange as
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Zuzana Sochorová (Egertová)Hello,I made a loan of a collection of Microstoma
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Jason KarakehianHi does anyone have a digital copy of Raitviir A (
i am currenly working with collection of Perithecia-forming species inhabiting Andromeda leaf litter. My orientation in the systematic space of this group is still poor. Could you possibly give me a clue on approximate position of this representative?, it seems beautiful and distinctive one.
On fallen leaves of A. polifolia, C. calyculata, L. palustre in raised bog community.
Ascomata scattered on both sides of the leaf, sphaerical, superficial, setose around the pore, and with descending hyphae in lower part, up to 150 mk in diameter.
Setae brown, septate, thick-walled, straight and short near the pore, bent and longer outward, 40-80 mk long, 8 mk broad at base, narrowing to obtuse tip; descending hyphae brown, septate, about 1 mk broad; asci clavate, attached to stalks which connected together in bunches, 20–23 x 8–9.6 mk, dehiscence mode unclear; hamathecium from elongated thin elements surrounded by gelatinous substance; spores hyaline, two-celled, with deep constriction, with many small to medium oil guttules, measured in vital state 10 (9–1.8) x 3.5 (3.3–3.9) mk (n=22).
i am still searching any information about this taxon. It is puzzling ). It may belong to Mycosphaerellaceae because absence of paraphyses, two-celled hyaline spores and fasciculate asci. But i could not decide any precisely about genus and species.
Nina.
Check von Arx and Müller (1975) Studies in Mycology n°9 (available here: http://www.cbs.knaw.nl/index.php/studies-in-mycology/378-studies-in-mycology-no-9).
Did you noticed the presence of superficial hyphae too? Could be a Wentiomyces or Epipolaeum species, but the habitat is uncommon and both are more frequently found on live leaves. Aditionally, Epipolaeum has coloured ascospores, and your specimen appears to be hyaline, at least initially.
Good luck.