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 Olga
Hello. I thought, I've found some tiny Cheilymenia
23-01-2015 18:08
Godorova Olga
Hello. I've found these on rotten stems of grass i
23-01-2015 16:06
Malcolm Greaves
This second Ascobolus was found on Alpaca dung but
23-01-2015 15:59
Malcolm Greaves
This was on gypsy horse dung. As the gypsys and th
22-01-2015 17:40
Vasileios Kaounas
Found 22-01-15, in sandy soil, in forest with Pinu
23-01-2015 01:21
Miguel Ángel Ribes
Good night againThis yellow-pink Orbilia was growi
22-01-2015 12:32
Vasileios Kaounas
Found 22-01-15, in Greece, in forest with Pinus ha
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.