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05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

07-03-2026 13:06

éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

23-12-2025 08:27

Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

28-02-2026 11:05

Yanick BOULANGER

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

08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

07-03-2026 22:22

Josep Torres Josep Torres

Hello.Some very tiny conidiomes collected in the D

06-03-2026 17:51

William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

05-03-2026 16:30

François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

06-03-2026 09:41

Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

05-03-2026 19:29

William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

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Coronophora or Similar Genus
Peter Thompson, 05-04-2013 16:28
Hello Everyone,

I have received a sample with perithecia resembling those of the genus Nitschkia. The asci are many spored and cylindrical rather than clavate in the upper part. The spores are sausage shaped and mostly curved, with the majority measuring between 9.5 and 10um long.

I wonder if there is another genus within the Nitschkiaceae which applies to my sample. Alternatively, is it possible in the genus Coronophora that asci can be cylindrical rather than clavate?

Any help would be much appreciated.

Thank you,
Peter.
  • message #22838
  • message #22838
Hans-Otto Baral, 05-04-2013 20:42
Hans-Otto Baral
Re : Coronophora or Similar Genus
Yes, the order is correct, and the species could be Nitschkia broomeana.

Zotto
Peter Thompson, 05-04-2013 21:34
Re : Coronophora or Similar Genus
Hello Zotto,

Thank you for your reply.

I certainly thought that the fruit bodies strongly resembled those of a non collapsing Nitschkia, but I was unaware of any species with many spored asci.

There are two entries in the Ascofrance database under the synonym Fracchiaea broomeana and their microscopy very closely resembles that for my sample.

Best wishes,
Peter.
Chris Yeates, 05-04-2013 22:29
Chris Yeates
Re : Coronophora or Similar Genus
Hello Peter - have you checked out http://www.ascofrance.com/uploads/forum_file/Nitschkia-broomeana-0001.pdf ?
regards
Chris
FELIPE SAN MARTÍN, 05-04-2013 23:47
FELIPE SAN MARTÃN
Re : Coronophora or Similar Genus

Contribución al conocimiento de cinco géneros de la familia Nitschkiaceae (Hymenoascomycetes: Sordariales). Acta Botanica Mexicana: 36. 43-52. 1996.

Alain GARDIENNET, 06-04-2013 07:10
Alain GARDIENNET
Re : Coronophora or Similar Genus
I agree, of course, and I add that you should observe spines on the ascomata.
Alain
Peter Thompson, 06-04-2013 23:58
Re : Coronophora or Similar Genus
Hello Felipe and Chris,

Thank you for the references to the literature about this species and the other related genera. I shall have a look at them both.

Best wishes,
Peter.
Peter Thompson, 07-04-2013 00:03
Re : Coronophora or Similar Genus
Hello Alain,

Thank you for your confirmation of the identification.

I was surprised to find that there was a Nitschkia species with polysporous asci. N. broomeana appears only to have been found twice before in Britain.

Best wishes,
Peter.