Thyronectria on unknown hardwood branch

05-02-2025 04:38

Ethan Crenson

Hi all, Found by a friend last Saturday in Staten

28-02-2017 09:34

Nordic Sordariaceae

Roberta Pini

Good morning,I am looking for the paper by Lundqvi

04-02-2025 20:26

Mollisia

Yanick BOULANGER

BonsoirJe pense que c'est Mollisia cinereaJ'ai hé

02-02-2025 15:07

Purple parasite?

Harald Homa

Hello everyone! While working through the finds f

01-02-2025 18:00

literature request

Angel Pintos

Hello,anybody has the following article:Botryospha

01-02-2025 10:01

Tricharina praecox ?

Vasileios Kaounas

found in the soil, in olive trees and Pistacia ver

29-01-2025 18:12

En Buxus

Blasco Rafael

Hola, he encontrado estos pequeños Ascos liqueniz

01-02-2025 20:32

bryophilous Helotiales IKI rr

Andreas Gminder

Hello,today my girlfriend Sylvie found a single ap

30-01-2025 14:54

Stalked orange disco

Karl Soler Kinnerbäck

Hi! Found this one on or next to some Juncus speci

30-01-2025 10:32

Bryoscyphus dicrani?

victor servranckx

Hello, I am a biology student from Belgium and on

« < 1 2 3 4 5 > »

Thyronectria on unknown hardwood branch

Ethan Crenson, 05-02-2025 04:38

Hi all,

Found by a friend last Saturday in Staten Island NYC, in mixed hardwoods with Quercus, Liquidambar, Prunus, Betula. I believe this is Thyronectria, but I'm not sure what species. (I was almost sure it was going to be Pseudotrichia mutabilis until I saw the spores).

Emerging from underneath the bark. This is either growing on another effete pyrenomycete, or it makes a black stroma—not sure which. There is a yellow-green scurf on the individual perithecia with a simple black ostiole at the apex.

Spores:

17.5-26.2 x 6.3-8.9µm
Me 21.7 x 7.9µm
Q 2.1-3.2
Qe 2.8
N=24

Hyaline, occasionally allantoid, rounded ends. They do not appear to bud.
(3)7(8) septate, with multiple longitudinal septa.

I have tried to key it out using Jaklitsch, W. M., & Voglmayr, H. (2014). "Persistent hamathecial threads in the Nectriaceae, Hypocreales: Thyronectria revisited and re-instated" but without much luck.

Any help would be appreciated.

Thank you in advance.

Ethan

Accès membres

Forum AscoFrance