05-07-2025 12:38
Åge OterhalsI found this pyrenomycetous fungi in pine forest o
04-07-2025 20:12
Josep Torres
Hello.A fungus growing on the surface of a trunk o
20-06-2025 08:33
Josep Torres
Hello.Small, blackish, mucronated surface grains s
28-06-2025 16:00
Josep Torres
Hello.A tiny fungus shaped like globose black grai
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Castillo Joseba
me mandan el material seco de Galicia (España)
03-07-2025 18:40
Castillo Joseba
me mandas el material seco de Galicia (España) re
03-07-2025 20:08
Francois Guay
I found this interesting yellowish asco growing on
01-07-2025 23:37
Josep Torres
Hello.A Pleosporal symbiotic organism located and
Ascocoryne turficola appears here in late summer (night temperatures at the bog now near zero). It could be regularly found in ombrotrophic sedge-sphagnum communities, where it grows at leaf litter of Carex limosa, or at miscellaneous sphagnum-litter substrates. I have not checked its vital structures before, and previous descriptions were done based on rehydrated specimens. Now it is time to compare them with vital measurements).
The sizes do not differred very much, only asci some wider when alive, the same about paraphyses. Spore size of this year collection coincides well with previous measured from dry staff. But now it is possible to see that paraphyses tips filled with greenish vacuoles (green color of hymenium); and oil pattern of spores also there.
Vital measurements (done from two apothecia):
asci 132 (118–148) x 11.5 (10.3–14) (n=14); paraphyses 1.7–2.5 broad at tips (n=10); spores 16.2 (14.7–18.8) x 5.3 (4.8–5.9) (n=30).?
In both cases my living asci were longer but not as wide as yours.
there was some mistake in asci width: i remeasured the same pictures again and have added measurements from other three apothecia collected today.
Final sizes are there:
Asci 145 (120–163) x 11.5 (9.7–13.3) (vital; n=35; from three apothecia); spores 16 (13.9–18.7) x 4.9 (4.1–5.9) (vital; n=100; from five apothecia).?
i have some observation to add about this wonderful and rare species. This year i was lucky to observe several apothecia on my permanent plots in the raised bog in Khanty-Mansiysk vicinities (West Siberia).
Several features seemed interesting to me:
* The apothecia of A. turficola are quite long-living (up to 60 days). The fist appearance of one group of three apothecia was registered on 2 August, and they were fruiting until first frosts (-4C at night) on 29 September. By then i have collected them and there is a picture of this group on 29 September.
* The second observation is about color change. Young apothecia had olive-green hymenial surface, which then changed to light brownish and finally to purplish of the same color as the stem (as in the picture). The height of apothecia by this time was up to 5 cm, disc diameter 2.5 cm. Hymenial surface from flat and even when young become convoluted in old age.
* The apothecia were completely frozen (tough) in the morning of first frost (-4 C) and after that become loose in consistence, but it was still possible to withdrew them and make the picture.
We have quite abundant population of A. turficola in the bog where Mukhrino field station is located. Some observations we have already published in the paper. http://www.ugrasu.ru/education/institutions/rec-environmental-dynamics-and-global-climate-change-the-unesco-chair/UNESCO_journal/docs/7/EDCC_4_2_Filippova_Bulyonkova.pdf
It would be very interesting to continue studying this species in the area, and I would appreciate your possible suggestions on such research.
Nina.
There are scattered British and Irish records of this species; they seem to fall into the period 31 August - 21 October, with a solitary spring record - from Wales 10th April 2008 (determined by Brian Spooner, so will be OK). Something tells me we never get quite as cold as you do!
best wishes
Chris