23-09-2025 13:31
Thomas Læssøehttps://svampe.databasen.org/observations/10534623
15-10-2025 16:39
Edvin Johannesen
These tiny (0.2-0.6 mm), white, pulvinate apotheci
03-10-2025 13:44
Riet van Oosten
Hello, Found by Laurens van der Linde on Populus
13-10-2025 19:05
Louis DENYBonjour forumSur tronc décortiqué de feuillu x,
11-10-2025 20:27
Marcel Heyligen
Found on a barked branch, 14 mm in diameter, of Ro
09-10-2025 22:14
S. RebeccaWe just had the Bavarian Mycology Conference in Au
10-10-2025 00:49
Ethan CrensonHello all, This was found last weekend on a hardw
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