12-02-2026 21:34
patrice CallardBonjour, la face inférieure des feuilles ce certa
11-02-2026 22:15
William Slosse
Today, February 11, 2026, we found the following R
12-02-2026 14:55
Thomas Læssøehttps://svampe.databasen.org/observations/10581810
11-02-2026 19:28
Lothar Krieglsteiner
on small deciduous twig on the ground in forest wi
25-04-2025 17:24
Stefan BlaserHi everybody, This collection was collected by JÃ
10-02-2026 17:42
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous me donner
10-02-2026 18:54
Erik Van DijkDoes anyone has an idea what fungus species this m
09-02-2026 20:10
Lothar Krieglsteiner
The first 6 tables show surely one species with 2
09-02-2026 14:46
Anna KlosGoedemiddag, Op donderdag 5 februari vonden we ti
Orbilia vitalbae?
Viktorie Halasu,
02-01-2022 22:35
Hello, I have here a small light rose to light orange Orbilia on xeric twig of Euonymus europaeus, small tree along a path near a riparian forest, coll. 1. 1. 2022.Â
Spores as shown. Paraphyses capitate. Asci 8-spored, lower spores inverted, dead ascus' apex is truncate, not thickened. No crystallic SCBs seen, globose SCBs present in excipulum. Slightly crenulate margin made of exudate "teeth". No glassy outgrowths.Â
Is it vitalbae or trapeziformis? The latter I've seen only once so I don't know the species well enough. But the spores seem to have more rounded lower pole and more note-shaped SB than trapeziformis.Â
Thank you in advance.
Viktorie
Hans-Otto Baral,
03-01-2022 07:35
Re : Orbilia vitalbae?
For my memory this looks more like trapeziformis because of the constantly subacute apex. SB shape is not far from what I illustrate in that species. But our concept of trapeziformis appears to be heterogeneous based on the few sequences, and vitalbae has very different spore lengths, I always wanted to divide it but finally gave up. Anyway, in vitalbae the rounded to obtuse spore apices strongly prevail.
Viktorie Halasu,
03-01-2022 10:16
Re : Orbilia vitalbae?
Dear Zotto,
thank you for clarifying this collection. I was thinking about vitalbae because I saw some similarity with the spores of HB 9165a (that untypical Swiss O. vitalbae on Sambucus racemosa). The other trapeziformis from the same forest had more attenuated lower spore ends.Â
Viktorie
thank you for clarifying this collection. I was thinking about vitalbae because I saw some similarity with the spores of HB 9165a (that untypical Swiss O. vitalbae on Sambucus racemosa). The other trapeziformis from the same forest had more attenuated lower spore ends.Â
Viktorie
Hans-Otto Baral,
03-01-2022 10:46
Re : Orbilia vitalbae?
Ah, these are typical! Indeed this Sambucus sample is dubious, we did not manage to assign it unequivocally, and an attempt to obtain DNA failed.