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Nectria on Urtica, anamorph and teleomorph

Riet van Oosten, 18-02-2019 14:46

Riet van Oosten

Hello,

Found by a mushroomfriend on Urtica. He gave me a name: Macroconia leptosphaeriae.

Could this be this species? Anamorph and teleomorph? I haven't seen asci ....

Spores : 17.7-17.9-21.5-22.0-22.7 x 6.9-7.2-7.2-7.3-7.3 µm

Conidia: 49.6-60.7-66.5-72.3 x 5.7-6.3-6.8-7.0 µm

Greetings, Riet

Mlcoch Patrik, 27-02-2019 20:18

Mlcoch Patrik

Re : Nectria on Urtica, anamorph and teleomorph

Yes, it is.
https://www.nahuby.sk/atlas-hub/Macroconia-leptosphaeriae/hlivka-/razovka-drobnickomilna/ID15448

https://www.nahuby.sk/obrazok_detail.php?obrazok_id=687226&poradie=2&form_hash=af76060b37b11e700a8cd6d73e929cf1

Edvin Johannesen, 28-02-2019 09:02

Edvin Johannesen

Re : Nectria on Urtica, anamorph and teleomorph

The black one, orange one, or both?

Lothar Krieglsteiner, 28-02-2019 09:10

Lothar Krieglsteiner

Re : Nectria on Urtica, anamorph and teleomorph

the red one -

the black one should be the substrate - old Leptosphaeria acuta`(?)

Best, Lothar

Edvin Johannesen, 28-02-2019 10:20

Edvin Johannesen

Re : Nectria on Urtica, anamorph and teleomorph

Thanks, Lothar - I suspected the black one was the substrate (and not Urtica).

Mlcoch Patrik, 28-02-2019 13:19

Mlcoch Patrik

Re : Nectria on Urtica, anamorph and teleomorph

No, this is Leptosphaeria doliolum, it have concentric-conical pseudothecia.

Riet van Oosten, 28-02-2019 16:03

Riet van Oosten

Re : Nectria on Urtica, anamorph and teleomorph

Found the emails for the replies in my spambox, therefore my late respons.

Thank you very much for your confirmation and the information Patrik!

It was difficult to see but I thought the conidia came out of the black ones...
So I was wrong.

Luc Bailly, 02-03-2019 23:37

Luc Bailly

Re : Nectria on Urtica, anamorph and teleomorph

Hi all,

The anamorph of a Leptosphaeria would be Phoma-like, conidia's included.

Cheers - LUC.

Riet van Oosten, 03-03-2019 09:36

Riet van Oosten

Re : Nectria on Urtica, anamorph and teleomorph

Hello Luc,
Thank you for your explanation!
Greetings, Riet