24-01-2015 10:09
Nina FilippovaDear forum,i am currenly working with collection o
25-01-2015 16:59
Blasco RafaelHola tengo esta muestra recogida en madera de Popu
22-01-2015 20:46
Miguel Ángel RibesHello, good nightI have this small (1-2 mm broad)
25-01-2015 09:45
Vasileios KaounasI want to ask a question. Can we only from a featu
25-01-2015 09:31
Nina FilippovaI was following Barr (1970) for identification of
24-01-2015 14:31
Nina FilippovaGood day to everyone,there is some uncertainty wit
23-01-2015 20:56
Godorova OlgaHello. I thought, I've found some tiny Cheilymenia
23-01-2015 18:08
Godorova OlgaHello. I've found these on rotten stems of grass i
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.