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28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

01-03-2026 14:10

Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

01-03-2026 20:34

Hans-Otto Baral Hans-Otto Baral

Does someone have access to Phytotaxa? I am intere

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

01-03-2026 08:55

Michel Hairaud Michel Hairaud

Bonjour , Je souhaiterais recevoir cet article :Â

01-03-2026 15:31

Csaba Németh Csaba Németh

Hello!I found these apothecia on Homalothecium lue

01-03-2026 17:51

Bruno Coué Bruno Coué

Bonjour,sur vieilles crottes de sanglier en chambr

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Cordieritidaceae sp. on indet. wood w/ Hypoxylon sp. - 305337857
Danny Newman, 13-01-2026 10:13
Danny NewmanCordieritidaceae sp. on indet. wood w/ Hypoxylon sp.
Cosby Campground, Great Smoky Mountains National Park, Cocke County, Tennessee, USA
https://www.inaturalist.org/observations/305337857

photo credits: Harte Singer
micrographs: Patrick Verdier


sequence available on iNaturalist.


spores not observed outside asci. dodgy in-ascus measurements:


(5) 5.7 - 6.8 (8.5) × (1.9) 2.1 - 3.4 (3.8) µm
Q = (1.7) 2.2 - 3 (3.3) ; N = 15
Me = 6.3 × 2.5 µm ; Qe = 2.6


KOH extractable pigment data forthcoming.


Collected during the 2025 Richard P. Korf Memorial North American Ascomycete Foray (aka "The Korf Foray), held at the Appalachian Highlands Science Learning Center in Purchase Knob, North Carolina.

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Hans-Otto Baral, 13-01-2026 12:07
Hans-Otto Baral
Re : Cordieritidaceae sp. on indet. wood w/ Hypoxylon sp. - 305337857
The ITS region fully coincides with an unpublished sequence of "Ionomidotis" olivascens by K, Pärtel (KL325). As long as there is no sequence from the type, we may safely say I. olivascens. If there are morphological differences to Ameghiniella I cannot say. 

KL325 is CUP MJ1032 from Jamaica fide Kadri and was acknowledged by Zhuang. I tend to place this species in Ameghiniella which has lkewise ionomidotic apothecia.
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Danny Newman, 14-01-2026 07:34
Danny Newman
Re : Cordieritidaceae sp. on indet. wood w/ Hypoxylon sp. - 305337857
i'm trying to reconcile the familial placement of Midotis in Helvellaceae (and Pezizales) as compared to the many, many BLAST results -- not to mention your own phylogram -- that all indicate placement of this collection in the Cordieritidaceae (and Helotiales). perhaps you can help make sense of this apparent conundrum, or alleviate my confusion.
Kadri Pärtel, 14-01-2026 07:38
Re : Cordieritidaceae sp. on indet. wood w/ Hypoxylon sp. - 305337857
Nice documentation!
Hans-Otto Baral, 14-01-2026 09:47
Hans-Otto Baral
Re : Cordieritidaceae sp. on indet. wood w/ Hypoxylon sp. - 305337857
The type of Midotis is M. lingua, and the genus is a synonym of Wynnella (Helvellaceae). Midotis olivacea has been misplaced in Midotis by Seaver 1951, while in 1926 it was placed in Ionomidotis, which was a better genus.
Danny Newman, 15-01-2026 10:07
Danny Newman
Re : Cordieritidaceae sp. on indet. wood w/ Hypoxylon sp. - 305337857
Thank you, Zotto.  We have decided to call this Ionomidotis olivascens on both iNat and in our MCMS database for the National Park Service.