
21-08-2025 02:18
Stefan JakobssonOn a necrotic section of a living Tilia cordata I

20-08-2025 19:04
Ethan CrensonHello, This asco was found on the same wood as my

19-08-2025 20:58
Ethan CrensonHi all, Here is what I believe to be a Hymenoscyp

12-08-2025 19:44
Could someone send me a pdf copy of this article?S

18-08-2025 15:17

... on 6.7.25 in a subarctic mire near a small lak

18-08-2025 15:07

.. 20.7.25, in subarctic habital. The liverwort i

19-08-2025 16:27
Paul CannonHello all I have spent some time trying to work o

18-08-2025 22:59
Yanick BOULANGERBonsoirVoici un asco récolté le 08/08/2025Comme

18-08-2025 16:01

.. on water-soaked Betula wood lying in a small st
Cheilymenia sp. on wooden chips possibly mixed with excreta
Stephen Martin,
18-02-2017 20:37

Asci J-ve, 190 - 230 x 12.5 - 13.9 µm
Ascospores, Broadly elliptic with a lateral crater-like depression at one side(artifact?), smooth or finely rugulose showing as cloudy surface at higher magnifications, 12.9 - 18 x 7.21 - 10.8 µm
(Average: 14.6 x 8.4 µm; Q: x1.42 - 2 µm (average x1.7), aseptate.
Excipulum one layer (I think, kindly confirm) of textura globulosa, 20-40um wide.
Interestingly there was a strange reaction with Melzer reagent. Shortly after applying the reagent, the hymenium became layered, where the uppermost part attained a yellow colour, followed by an unstained (or even faint blue) layer occupying about the upper third of the hymenium (or asci) and a reddish brown, more or less dextrinoid lower half of the hymenium and subhymenium. Exipulum remained unstained.
This cup fungus reminded my of Cheilymenia esp. its bulboid hairs, but I wish your advice. Specimens in fridge if you request further tests or observations.
Nicolas VAN VOOREN,
18-02-2017 20:42

Re : Cheilymenia sp. on wooden chips possibly mixed with excreta
No picture?
Viktorie Halasu,
18-02-2017 21:26

Re : Cheilymenia sp. on wooden chips possibly mixed with excreta
Hello, do you have a photo of spores' surface in LACB (without heating)?
Stephen Martin,
19-02-2017 10:41

Re : Cheilymenia sp. on wooden chips possibly mixed with excreta
Nicolas, I wrote the text and then placed the images few mins later because sometime something wrong goes with the upload and the forum resets ( = loosing up the text).
Spore in LACB examined today under x1000 (oil immersion) magnification
Sizes confirmed (14-16um long) and there seems to be a very very fine striation or rugolosity which I tried to highlight but enhancing some images with post-processing.
The lateral crater-like depression is also confirmed. These spores are produced by inverting some living cups upside down on the glassslide for 12 hrs so these are ejected spores, fully mature. Stain left standing for 10mins then examined. No heat applied to the stain.
Spore in LACB examined today under x1000 (oil immersion) magnification
Sizes confirmed (14-16um long) and there seems to be a very very fine striation or rugolosity which I tried to highlight but enhancing some images with post-processing.
The lateral crater-like depression is also confirmed. These spores are produced by inverting some living cups upside down on the glassslide for 12 hrs so these are ejected spores, fully mature. Stain left standing for 10mins then examined. No heat applied to the stain.
Stephen Martin,
08-06-2020 11:01

Re : Cheilymenia sp. on wooden chips possibly mixed with excreta
Any fresh ideas on this Ascomycete (Cheilymenia sp.)