Cordyceps - Forum ASCOFrance

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Cordyceps

Malcolm Greaves, 04-07-2013 12:32

This Cordyceps was growing from a fly which should make it Cordyceps forquignoniiC but the only information I have says that the "head" should be 1-2 mm and globose.
Cordyceps sphecocephalaon the other had should be 3-6 x 1.5-3 mm but on wasp.
This specimen was 4 x 3 mm
What should I look for to distinguish the species?

Thanks
Mal

Ralph Vandiest, 04-07-2013 12:38

Re : Cordyceps

Hello Malcolm?

here a key to this genus.

rgeards

Catalogue-des-Cordyceps-CLL-2-0001-0001.doc

Christian Lechat, 04-07-2013 16:50

Re : Cordyceps

Hello,

the following file is updated:

http://www.ascofrance.fr/uploads/document/Catalogue-des-Cordyceps-CLL-4-0001-version-definitive-0001.doc

Regards,
Christian

Malcolm Greaves, 22-07-2013 00:59

Re : Cordyceps

Thanks for the guidance. With the size and shape of the head C sphecocephala looks the right result although I see that all records under this name on the FRDBI have been moved to C ditmarii.

Mal

Chris Yeates, 22-07-2013 11:27

Re : Cordyceps

Hi Mal
note the passage in the document to which Christian has provided the link:
"Littérature : on trouve cette espèce sous le nom de C. dittmari, C. sphecocephala f. ditmarii (=ditmari), C. sphecophila, ou C. sphecocephala (Les récoltes européennes doivent être rapportées à Ophiocordyceps ditmari)." (my underlining - I think the problem is that some of the other names have been variously interpreted in the past).
cheers
Chris

Michel Delpont, 22-07-2013 14:24

Re : Cordyceps

Hi Malcolm.

It is certainly Ophiocordycerps ditmari. I have attached two photos taken by a friend a week ago.

Regards.

Michel.

Christian Lechat, 22-07-2013 16:54

Re : Cordyceps

Hi to all,

Traditionally, the specimens collected on wasps were named C. sphecocephala or O. ditmari and the specimens on flies C. forquignonii. We have studied both specimens, cultures and molecular data indicate that they are the same species.

Cordyceps forquignonii Quelet has never been collected since the publication and nobody really knows what it is. Holotype disappeared and we have only an illustration, which contains numerous incoherences.

Regards,

Christian

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