22-04-2026 01:06
Richard VALERI
Bonjour à tous.Je vous présente cette Nectria s.
21-04-2026 22:14
Margot en Geert VullingsThis cup fungus was found on April 10, 2026, on lo
21-04-2026 13:36
Gernot FriebesHi,I am out of ideas for this one. I collected Sal
21-04-2026 13:19
Gernot FriebesHi,this Lophodermium on Typha has ascospores measu
21-04-2026 13:05
Gernot FriebesHi,this hyphomycete feels familiar but I was not a
20-04-2026 22:00
Malcolm Greaves
These pale yellow, hairy ascos were growing on cul
19-04-2026 21:23
Steve ClementsBonjour, I found this anamorphic fungus on old pl
19-04-2026 20:46
Steve Clements1 mm diameter approx spherical conidiophores on pl
12-04-2026 17:56
Hardware Tony
Found on dead stems in February earlier this year
Good morningThis orange-brown Ciboria or Moellerodiscus, with a darker stem, 2.5 mm, was growing on indeterminate wood, although it could also be a herbaceous remnant, in the Botanical Garden of Funchal (Madeira). It was slightly dry, I took the macro photos after hydrating it with a water spray.
Eight-spores asci, with the 8 spores of similar size, with croziers and apical apparatus IKI+, Sclerotinia type, (59.9) 61.4 - 68.3 (70.5) × (4.7) 4.8 - 5.2 (5.8) µm; Q = (10.8) 12.1 - 13.8 (14.2) ; N = 15; Me = 64.3 × 5 µm ; Qe = 12.8
Paraphyses were not in very good condition, but in some images cylindrical VBs can be seen.
Spores are variable, from ellipsoidal to fusiform and some almost cylindrical, and many are asymmetrical, apparently they have 1 nucleus, with very few LBs, of (6.3) 6.9 - 9 (9.7) × (2.3) 2.5 - 3.1 (3.5) µm; Q = (2.2) 2.5 - 3.4 (4.2) ; N = 63; Me = 7.9 × 2.8 µm ; Qe = 2.9.
Ectal excipilum with textura globulosa; medullar excipulum with textura intricata.
With Baral's keys I arrive at Ciboria viridifusca, but this grows on Alnus cones. If the apical apparatus were Hymenoscyphus type, it would be similar to Moellerodiscus tenuistipes. It also resembles M. lentus, but should have more marked LBs, although if the collection was not in good condition, it may have lost them.
Thanks in advance.
Miguel Ángel Ribes
I asked the collector if he could give me more information about the substrate.
Yes, all the asci are dead.
Tomorrow I will try to find some paraphyses pictures with VBs and I will check the substrate.
Thank you very much.
Attached are 9 paraphyses pictures. In the first 6 it seems that there is no VBS. In the last 3 I have doubts, it is not clearly visible.
This afternoon I will check the substrate.
Thank you.
MiguelAngel Ribes.
Miguel Ángel, are you sure about croziers??? I can't find them in the images...
If they are absent, I would consider Moellerodiscus (Ciboria) aestivalis...
Raúl
So it seems that the only possibility is M. lentus, with spores and paraphyses with few LBs and VBs, respectively, because they are damaged and/or dead.
This afternoon I will try to find out more about the substrate.
Thnaks a lot, Zotto.
In my sections of the apothecia, croziers are not clearly visible, probably due to the half-dead state of the sample. I have been guided by the base of the few asci that I can photograph separately, in which almost none have a straight line. With the attached images I still think that it has croziers, but it is true that I have not clearly seen a young cell together with its basal cell to see it clearly.
Un abrazo.
I assume you are referring to this photo, right? The septum on the left clearly corresponds to a paraphyses, but the one on the right seems to be from an ascus.
I'm attaching pictures of the substrate. I don't think it's a tree wood, but rather something herbaceous or the bark of some plant. It is very hard.
Yes, I also think it could be some kind of herbaceous plant.
Thank you Zotto.
Thanks for the explanations.