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09-02-2026 11:42

Lachnum sp.
Åge Oterhals

Hi forum, I found this Lachnum on old hardwood tw

02-02-2026 21:46

Dark disc on Populus
Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

25-01-2026 23:23

Delitschia/Lojkania? on wood
Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Amniculicola
Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

04-08-2014 17:35

Pachyella 1898
Leandro Sánchez Leandro Sánchez

Sur branche de feuillus, jusqu'à 22 mm diamètre,

05-02-2026 15:07

Asco in Pinus halepensis
Vasileios Kaounas Vasileios Kaounas

Found on a fallen needle of Pinus halepensis, diam

05-02-2026 06:43

At first glance, a Nitschkia, but...
Stefan Blaser

Hello everybody, Any help on this one would be mu

18-08-2025 15:07

pyrenomycete on dead parts of foliose liverwort from Norway
Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 14:55

Lichénicole sur Lobaria
Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

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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The ITS region fully coincides with an unpublished sequence of "Ionomidotis" olivascens by K, Pärtel (KL325).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.