24-03-2024 08:27
Thierry Blondelle
HiOn Hedera helix fallen branchEcological habitat:
26-04-2024 10:07
Mathias Hass
Hello, Does anyone know what this is? Found on J
24-04-2024 21:54
éric ROMERO
Bonjour, J'ai trouvé ce Lasiobolus sur laissées
23-04-2024 15:18
Lothar Krieglsteiner
... but likely a basidiomycete. I hope it is o.k.
23-04-2024 13:17
Edouard Evangelisti
Bonjour à tous, Je viens de récolter ce que je
23-04-2024 21:49
Ethan CrensonHello all, A friend recently found this orange as
22-04-2024 11:52
Zuzana Sochorová (Egertová)
Hello,I made a loan of a collection of Microstoma
11-01-2022 16:36
Jason Karakehian
Hi does anyone have a digital copy of Raitviir A (
22-04-2024 20:38
Miguel Ángel Ribes
Good afternoon.Does anyone know this anamorph?It g
Hello,I would welcome your advice on this Bryoscyphus.
It was collected in Slovakia, Mala Fatra NP, in a gorge, on old thalli of Preissia quadrata, 10 May 2015.
Apothecia grew in small groups, were slightly convex or plane, +- rounded from an upper view, pale brown, 0.5-2.5 mm in diameter, shortly stipitate.
Asci cylindrical, inoperculate, octosporic, uniseriate or biseriate, IKI+, 130-160 x 9-12 micrometers.
Spores unequilateral, smooth, with many small droplets, 12.5-15(17) x (4.5)5-5.5(6) micrometers.
Paraphyses filled with small droplets, hyaline or pale brown, septate, branched, with an obtuse apex, 3-3.5 micrometers broad, straight.
Med. excipulum consisting of cylindrical thin-walled cells (2.5-4 micrometers broad).
Ectal excipulum combination of textura angularis and text. prismatica. Hair-like projections not observed.
No combination of characters in the key in the article by Verkley et al. 1997 fits perfectly. Preissia (member of Marchantiaceae) is not mentioned as a substrate in any of the species in the key. B. dicrani and B. turbinatus have totally different hosts, so I´m considering B. atromarginatus, B. marchantiae and B. conocephali. The width of spores is between B. atromarginatus and B. marchantiae, asci are too long for B. atromarginatus, spore shape wrong for B. marchantiae. For B. conocephali, the hairs are missing.
Zuzana
Je pense qu'il s'agit de B. atromarginatus Verkley, van Aa & G. de Cock. Voir ma publication en dossier attaché.
Amicalement
René
DOUGOUD, R. (2003) - Bryoscyphus atromarginatus. - Mycol. Montenegrina VI: 7-11.
René
Dear Rene,
I would also like to receive the file. Thanks in advance,
Yours, Lothar Krieglsteiner
Bonjour Zuzana, René et tous,
Belle récolte et belles photos.
I did not recognize the spores of a last year collection I called B. atromarginatus (on Lunularia cruciata). As in René's paper (which I also used for identification) the spore shape is different , along with guttulation . Spore width of my collection (MH 120114) never exceed 4.5 µm and there always is an empty area in the spore guttuation.
Asci never exceed 120 (130) µm
I do not know B. marchantiae.
I attach pics .Amitiés Michel
this is actually striking how the nucleus is in the lower part of the spore in your fungus. In all my available images I see the empty region +/- in the middle part.
Spore width seems variable, I have 3.5-4.5 up to rarely 5-5.5 µm.
Of course, I am not sure if all is the same, but i would at first sight think that yours belongs here.
Zotto
In my collection the spores often have an empty zone too, but rather small. I add some new photos.
Comparing my data with those in René´s article, I can see few differences - the substrate, somewhat different size of spores and asci (I measured everything fresh, in water). If I understand the French text well, René´s paraphyses were simple (mine are sometimes branched, see the photo with two lateral branches). I also never observed septa in the spores.
But these differences are probably not very important.
Best regards, Zuzana
Septation occurs only in overmature spores in this group, so it depends on the ripeness of the apos.
Zotto
