29-04-2014 17:08
Dragiša SavicToday on dead stems of Aconitum vulparia I found a
25-04-2014 02:39
Nick AplinSalut à tous, I am trying (and mostly failing!)
28-04-2014 09:52
Dragiša SavicOn dead stem of Asplenium scolopendrium I found Ps
23-04-2014 22:29
Ralph Vandiest
Hello,I found these black small frb on leaves of
It was abundantly fruiting on Carex rostrata, in bog hollow (N61,059199° E69,460502°).
Apothecia up to 0,5 mm in diam, circular, bursting through the epidermis with irregular flaps aside, flat, light brownish with brown edge; hymenium surface plane to concave, edge some rised under hymenium, irregularly dentate; apothecia densely convering outer surfaces of the leaves.
Excipulum from textura prismatica - porrecta, hyphae with thickened walls, about 4 mk broad, at areas with abundant brown encrustation, at flanks with scarse free ends, edge from cylindrical cells with obtuse ends, to 50 mk long; asci clavate, with clamp, in upper part conical with flattened dome, pore euamyloid, with 2 large spores or occasionally with 8 underdeveloped small, 83 (77-93,5) x 10 (9-10,5); paraphyses cylindrical, segmented, branched, tip some enlarged, curved, embedded in gel, about 1,5 mk broad in base part, to 4 mk at tips, exceeding the asci for about 15 mk; spores fusoid, some curved, 3-septate, in water with many large and small guttules, 32-37 x 6,2-7,3.
This species is devoid of VBs in the paraphyses, I remember, unlike N. eriophori. Note that I place all in Niptera.
Zotto
What time of the year did you make this find ?
Amitiés
Michel
Zotto, i could see asci with 2 full developed spores and asci with 6-8 underdeveloped, the last finally remain sterile. There is different number of such sterile asci from apos to apos, but they are constant. In asci with well developed spores sometimes abortive ones also may be traced. I showed it in pictures.
Right, there is no VBs in paraphyses. Insted, Toluidine Blue stains asci in some way.
Michel, it was collected 15.08.2.13, e.g. end of summer here. But before that time there was very dry period, so the fruitification could be delayed by drought (even bogs were quite dry).
Amitiés
Michel