07-06-2026 15:10
William Slosse
Hello everyone,On 05-06-26, I found following asco
08-06-2026 17:00
François BartholomeeusenGood day everyone, On June 5 2026, I collected de
05-06-2026 11:02
Thomas Læssøehttps://svampe.databasen.org/observations/10596691
08-06-2026 10:16
Spooren Marco
I don`t have a clou about this fungus,it is not in
07-06-2026 12:09
François Freléchoux
Bonjour, Voici une brève description de ce qui m
07-06-2026 12:43
Steve ClementsBojour. This was a strange find on a stick on my
12-07-2015 00:05
Nedim Jukic
This one from the same locality as the previous on
06-06-2026 17:44
Steve ClementsBonjour, This disco was on planed wood 3 x 1.5 cm
14-08-2016 23:15
Alex Akulov
Dear friendsCan you help me to find the descriptio
Hamatocanthoscypha on Osmunda?
François Bartholomeeusen,
08-06-2026 17:00
On June 5 2026, I collected dead stems and leaves of Osmunda. On the leaves, leaf veines and a few petioles I found very small white, disc- to cup-shaped ascomata (diameter < 270 µm).
The dark basal ring is striking, but it is not a Calycellina because the ectal excipullum is completely covered with short hairs with pointed, glassy, curved or curled tips.
Textura: angularis
Hairs: no reaction in KOH;
Asci: 17-29 x 4-6 µm; with croziers, blue in Lugol's solution;
Paraphyses; cylindrical;
Spore: 4-6 x 1.3-1.9 µm; lacrymoid;
Could this be Hamatocanthoscypha laricionis var. laricionis? The spores and asci are, however, smaller and the substrate is different! Any help would be welcome.
Greetings,
François Bartholomeeusen
