18-05-2024 10:47
Anna KlosGoodmorning,We found this tiny ascomycete (max. 1m
10-05-2024 17:40
Anna KlosGood afternoon, Thursday during an inventory we f
17-05-2024 16:25
Pavel JiracekErioscyphella lunata, found on a fallen needle of
29-01-2022 21:44
Jan EcksteinGood evening, apothecia small, yellowish, 150-300
16-05-2024 11:19
Sylvie Le GoffBonjour, j'ai récolté sur une branchette de feui
14-05-2024 09:19
Hans-Otto BaralHi, I want to announce for next Sunday 17.00 middl
16-05-2024 11:49
Castillo JosebaDe ayer en rama de abetoNo se por donde mirarA ver
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.