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01-03-2024 18:06

Marc Detollenaere Marc Detollenaere

Dear Forum,On unidentified moss I found some small

01-03-2024 23:06

éric ROMERO éric ROMERO

Bonjour, Sur laissée de mustélidé indeterminé

02-03-2024 12:37

Bernard Declercq Bernard Declercq

Hello,I am looking for a pdf of following paper:Ud

29-02-2024 10:42

Charles Grapinet Charles Grapinet

Hello, Yesterday I found a Periconia on a dead Ae

22-10-2019 00:02

Yannick Mourgues Yannick Mourgues

On Fagus decorticated wood near a stream. Diametr

29-02-2024 16:43

Malcolm  Greaves Malcolm Greaves

Can someone suggest what this might be. It is deve

25-02-2024 19:50

Robin Isaksson Robin Isaksson

Found this one 3-4 times on resin in SwedenAsci IK

24-02-2024 15:15

Louis DENY

Bonjout ForumTrouvé à Belfort (400m altitude), s

27-02-2024 12:55

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia España reco

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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.