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06-08-2022 22:20

Marcus Yeo

I found this ascomycete today on dead leaves of Er

16-07-2022 17:01

Zetti Mario

Hi, I am doing some work with microfungi and durin

06-08-2022 20:43

Louis DENY

Au bord d'un étang près de Belfort (alt 400m) su

05-08-2022 08:43

Josep Torres Josep Torres

Hola.Un líquen sobre la corteza de un tronco de p

07-08-2022 01:57

Stefan Jakobsson

A light-coloured Hymenoscyphus growing on a cone o

13-07-2022 23:27

Josep Torres Josep Torres

Hola.Un liquen cortícola fotografiado este pasado

05-08-2022 13:58

Lothar Krieglsteiner Lothar Krieglsteiner

on decorticated branch of surely Betula (as there

05-08-2022 14:25

Lothar Krieglsteiner Lothar Krieglsteiner

30.5.22, Schloßberg near Weißenstein, Schwäbisc

05-08-2022 14:35

Andgelo Mombert Andgelo Mombert

Bonjour, En vue de rédiger un petit article, je

02-08-2022 15:27

Petra Eimann Petra Eimann

Hi all, this find is from 19.03.2022 on herbaceou

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Discomycete on leaves of Eriophorum vaginatum
Marcus Yeo, 06-08-2022 22:20
I found this ascomycete today on dead leaves of Eriophorum vaginatum in an acid mire in NE Scotland. My efforts have failed to find a name for it, so I'd welcome any pointers.

Apothecia are erumpent; elongated; with an orange-brown hymenium.

Asci are clavate; ca 120-160 x 13-18 µm; 8-spored (though in some asci not all spores have developed fully); IKI+ blue.

Ascospores are all in asci; hyaline; ellipsoid; 0-septate; 21-27 x 8-9 µm; with scattered small OBs & a couple of medium-sized OBs.

Paraphyses are filiform; 2 µm wide; sparsely branched.

Marginal cells are cylindrical to clavate; ca 25-35 x 5-7 µm.

Thanks

Marcus
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Brian Douglas, 09-08-2022 02:27
Brian Douglas
Re : Discomycete on leaves of Eriophorum vaginatum
Hysteronaevia kobayasii seems rather similar (host, spore dimensions and and usually only four ascospores reaching maturity). Though yours has a blue apical ascus pore in Lugol's.

Has anyone else seen this in recent decades?