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09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

09-02-2026 20:10

Lothar Krieglsteiner Lothar Krieglsteiner

The first 6 tables show surely one species with 2

09-02-2026 14:46

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

09-02-2026 11:42

Åge Oterhals

Hi forum, I found this Lachnum on old hardwood tw

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

04-08-2014 17:35

Leandro Sánchez Leandro Sánchez

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

05-02-2026 15:07

Vasileios Kaounas Vasileios Kaounas

Found on a fallen needle of Pinus halepensis, diam

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Calycellina?
Ethan Crenson, 10-11-2023 07:01
Hello,

Today in a Brooklyn, NY cemetery on an oak leaf I found a small cluster of minute white cups with hairs at the margin. My first thought was Hyaloscypha, but the microscopy seems to suggest otherwise. I am wondering if this is Calycellina.

Apothecia smaller than 1mm in diameter growing on Quercus leaf (I think).

Asci 4-spored, IKI+, clavate, 32-37 x 5.2-6.0µm

Spores fusiform, usually with one acute end and on rounded end, somewhat curved, 9.5-15.1 x 2.2-2.9µm

Paraphyses septate with oil content. Dextrinoid in Lugol's.

Excipulum textura globulosa / intricata. Cells are often trapezoidal.

Hairs? Not sure.

Am I on the right track with Calycellina?


Thanks,

Ethan
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Hans-Otto Baral, 10-11-2023 09:38
Hans-Otto Baral
Re : Calycellina?
Yes, this is Calycellina lachnobrachya. One of my old papers deals with 4-spored Calycellinas. Regretabbly, both this and araneocincta are so far unsequenced, only ulmariae and flaveola are.
Ethan Crenson, 10-11-2023 14:05
Re : Calycellina?
Thank you again! I don't have much material left over, but I will try to sequence this collection if I can.

Was the paper you wrote on 4-spored Calycellinas is in Czech Mycology or Zeitschrift für Mykologie? I am trying to find it online.

A very interesting asco.  I don't think I have seen an IKI reaction like that at the ends of the paraphyses.
Ethan Crenson, 10-11-2023 14:55
Re : Calycellina?
I think the reference I'm looking for is this:

Baral, H.O. (1989). Beiträge zur Taxonomie der Discomyceten II. Die Calycellina-Arten mit 4sporigen Asci. – Beitr. Kenntn. Pilze Mitteleuropas 5: 209–236.

I can't seem to find it online. Do you know where it is available?
Hans-Otto Baral, 10-11-2023 22:03
Hans-Otto Baral
Re : Calycellina?
I sent it to you by mail.
Ethan Crenson, 20-11-2023 18:38
Re : Calycellina?
Thank you for the paper.

I have managed to get a fairly decent sequence from this collection.  If you visit:


...there is an observational field for DNA Barcode ITS in the right column where I have added the results.