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13-06-2025 09:41

Josep Torres Josep Torres

Hello.A cerebriform ascomycete sprouting scattered

14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

18-07-2025 23:03

Josep Torres Josep Torres

Hello.Fruitings between 51 and 130 microns in tota

17-07-2025 11:55

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

15-07-2025 13:27

Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

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bitunicate ascomycete on leaves of Vaccinium vitis-idaea from Norway
Lothar Krieglsteiner, 28-07-2018 17:23
Lothar Krieglsteiner

... collected by my wife, Katharina Krieglsteiner, near the National Park of Jotunheimen in Norway, Visdalsvegen. road to Spiterstulen, about 1100 m NN, 15.7.2018.


In Ellis & Ellis and other literature I found no matching species - although the genus Gibbera seems to be a good hint (?). Manually I measured the spores to be about 12-13,5/2-3 µm (roughly).


Can somebody provide me with a specific name - or with a hint, at least?


Best regards, Lothar


 

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Alain GARDIENNET, 29-07-2018 07:53
Alain GARDIENNET
Re : bitunicate ascomycete on leaves of Vaccinium vitis-idaea from Norway
Hi Lothar,
Did you think at Mycosphaerella genus ?
Alain
Lothar Krieglsteiner, 29-07-2018 09:17
Lothar Krieglsteiner
Mycosphaerella minor likely

Hello Alain,


thank you for this (indeed obvious ...) hint.


So I could look up the species M. minor with fitting details, especially spore form and length (e.g. in Nograsek, Remler: only short notices). M. minor is recorded to be arctic-alpine and polyphagous, but with a preference to Vaccinium an Arctostaphylos (Ericaceae).


Thanks again - and best regards,


Lothar