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01-06-2020 18:19

Philippe  Larue Philippe Larue

Bonjour à tous, Est-il possible de déterminer,

01-06-2020 16:41

Hardware Tony Hardware Tony

At first I felt this was edging towards S. stellat

01-06-2020 15:51

Andgelo Mombert Andgelo Mombert

Bonjour, Sur branche morte décortiquée de Salix

01-06-2020 16:39

Andgelo Mombert Andgelo Mombert

Bonjour, Un dernier pour aujourd'hui. Sur tige m

01-06-2020 15:33

Andgelo Mombert Andgelo Mombert

Bonjour, Sur branche morte de Laburnum anagyroide

29-05-2020 11:28

Maria Plekkenpol

Hello, on cowdung I saw these whitish asco's. Foll

19-04-2015 20:20

Enrique Rubio Enrique Rubio

Hi again Could you help me with this paper? NANN

31-05-2020 19:49

Mirek Gryc

Hi.A colleague from Norway brought one ascocarp of

30-05-2020 13:52

Andrés Valverde Valera Andrés Valverde Valera

Bonjour,Je ne sais pas si ça peut être la phase

31-05-2020 07:26

Yulia Lytvynenko

Dear friends.Looking for a copy of the following w

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Lanzia equiseti?
Johan Myhrer, 22-08-2018 17:52
Found these on dead stems of Equisetum fluviatilis standing in water near a slow stream in central Sweden yesterday. Hymenoscyphus seemed probable but the spores where large and "weird".

Spores: (29-)30(-32)x(6-)7,5µm

Asci ~130-150µm

Most things are very similar to Marja Pennanens collection from 2010 (http://www.ascofrance.com/search_forum/12546). Can anyone confirm the species, seems to be first collection for Sweden.
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Lothar Krieglsteiner, 22-08-2018 18:46
Lothar Krieglsteiner
Re : Lanzia equiseti?

Hello Johan,


I do not know what "Lanzia" equiseti is - but your collection looks like a member of the Hymenoscyphus caudatus-complex to me.


Best regards, Lothar

Johan Myhrer, 22-08-2018 20:19
Re : Lanzia equiseti?
There is a "Hymenoscyphus" equiseti, described by Raitviir 1984 as Lanzia equiseti.
François Valade, 22-08-2018 20:34
François Valade
Re : Lanzia equiseti?
Lothar, look at Hymenoscyphus folder in Zotto's Drive.
Hans-Otto Baral, 22-08-2018 20:38
Hans-Otto Baral
Re : Lanzia equiseti?
I confirm L. equiseti which has a Hymenoscyphus-type of apical ring, so cannot belong in Lanzia. The spores of this species are not really scutuloid, although those of H. caudatus are also only slightly so. They have an extraordinary size, in any case.

A sequence of an isotype of L. equiseti from Karelia gained by Kadri Pärtel showed that this is a Helotiaceae but not a Hymenoscyphus in the narrow sense.  So a very interesting matter.

Zotto
PS. I must correct myself, the spores are indeed slightly to distinctly scutuloid here, while in the type and Marja's sample they are only very indistinctly so.
Hans-Otto Baral, 03-04-2020 10:34
Hans-Otto Baral
Re : Lanzia equiseti?
Dear Johan

I am preparing a description of H. equiseti, and I wonder if you have more photos. Especially a mature ascus (you posted only the ascus base).

Important would be to include a scale to your photos. I also wonder about apothecial size and stipe length, data necessary in a description.

Danny Haelewaters obtained a sequence, and we want to prepare a small contribution within a joint larger publication of various authors.

Zotto