17-10-2025 18:45
Riet van Oosten
Hello, Found by Laurens van der Linde, Oct. 2025.
23-09-2025 13:31
Thomas Læssøehttps://svampe.databasen.org/observations/10534623
15-10-2025 16:39
Edvin Johannesen
These tiny (0.2-0.6 mm), white, pulvinate apotheci
03-10-2025 13:44
Riet van Oosten
Hello, Found by Laurens van der Linde on Populus
13-10-2025 19:05
Louis DENYBonjour forumSur tronc décortiqué de feuillu x,
11-10-2025 20:27
Marcel Heyligen
Found on a barked branch, 14 mm in diameter, of Ro
09-10-2025 22:14
S. RebeccaWe just had the Bavarian Mycology Conference in Au
10-10-2025 00:49
Ethan CrensonHello all, This was found last weekend on a hardw
Ascomycete on Polystichum proliferum
Heather Merrylees,
17-09-2025 10:50
I am hoping for any advice on the identification of this ascomycete I found growing on the underside of Polystichum proliferum in Victoria, Australia. A specimen is lodged at the National Herbarium of Victoria (MEL). There was no reaction in Melzer's reagent.
Recorded on iNaturalist as: https://www.inaturalist.org/observations/299481745
Looking forward to learning more and thanks in advance for your assistance.
Best regards,
Heather Merrylees
Hans-Otto Baral,
17-09-2025 11:40
Re : Ascomycete on Polystichum proliferum
Hello, I am quite unsure about the asci and spores. The latter are filiform?
The structure of the conglutinate hairs is also not easy to see. Would be good to have some oil immersion photos. And if you have Lugol, please test the asci herewith for possible hemiamyloidity (or use Melzer to a KOH-pretrated mount).
Heather Merrylees,
17-09-2025 11:59
Re : Ascomycete on Polystichum proliferum
Thanks so much for your swift reply and recommendations Hans-Otto.
I agree the ascospores appear filiform - also septate (3?) and quite pointed at the ends. I've attached some of the illustrations from Spooner's Helotiales of Australasia for comparison that seemed the closest.
I'll get back to the microscope this Friday and will update accordingly. Many thanks!
I agree the ascospores appear filiform - also septate (3?) and quite pointed at the ends. I've attached some of the illustrations from Spooner's Helotiales of Australasia for comparison that seemed the closest.
I'll get back to the microscope this Friday and will update accordingly. Many thanks!
