Daldinia sp?

[leifus]

Originally Posted by timhale197200

Just like this!!

just like that

[Chris Yeates]

see the following:

[Chris Yeates]

Originally Posted by leifus

to tell whether it is D.concentrica you can cut it in half. On the cross section there will be 'consentric rings'.....

sadly not quite "just like that" . . . . the concentric rings are diagnostic of the genus Daldinia not of any particularly species of Daldinia

The following note by Alick Henrici in Field Mycology Vol 2 Part 3
referring to a mention of a Daldinia loculata in the same journal, might be of interest

"Daldinia complications
Daldinia concentrica, 'King Alfred's Cakes', is very familiar on ash and beech throughout the year. Roy Anderson (this issue p. 82) mentions
D. loculata on birch. But the only other species in the British Ascomycete Checklist (1984) is D. vernicosa on burnt gorse (Ulex). What is he on about? I was aware that several more species are known in Europe and planned to read up the subject and tell readers what to look for. Alas I am defeated, the experts are still all at sea. Johanneson et al. (2000) investigated 35 collections from 11 different hosts in northern Europe and found five different species, three seemingly confined to burnt wood and two not. Differences in DNA and in anamorphs in culture are not yet very clearly tied to field characters, nor is the nomenclature yet stabilised for these five. In summary:
- The common species on unburnt ash and beech remains D. concentrica despite recent moves to reinterpret this name and this is the only species known on ash.
- There is another species on unburnt wood, mostly hazel and alder, possibly called D. petriniae.
- Three species have been found on burnt gorse, but they aren't confined to this host. The usual one may be D. fissa.
- One of these occurs mainly on birch (always burnt) within 1-5 years of forest fires. This is the D. loculata of Roy Anderson's article."

things appear to have moved on from the above (written in 2001) . . . as I have pointed out before in this thread, there are now 7 Daldinias on the GB list (Henrici mentions comments on 4 above - D. vernicosa has disappeared as a "confused name"; I shall try and get some information on Daldinia decipiens, D. loculatoides and D. caldariorum and see where they fit in . . . gulp

if anyone knows of any recent articles on this I'd be very interested

Chris

[leifus]

fair enough!

thanks for mentioning that

[Chris Yeates]

Originally Posted by leifus

fair enough!

thanks for mentioning that

I know . . . .

I think the situation is rather like happens with Honey Fungus where there are actually about 20 species and varieties recorded for Britain

most people are quite happy to be able to label their picture with the basic name Armillaria mellea in the general sense and that's fine . . .

Chris

[KeenTeen17]

Roger Philips is good for Armillaria. I think after looking in there I have seen the A. ostayae, A. mellea, A. cepistipes, but theres probably a load of others not mentioned in Philips as you said . 20

[kiltoncomp]

Originally Posted by Chris Yeates

sadly not quite "just like that" . . . . the concentric rings are diagnostic of the genus Daldinia not of any particularly species of Daldinia

- The common species on unburnt ash and beech remains D. concentrica despite recent moves to reinterpret this name and this is the only species known on ash.
- There is another species on unburnt wood, mostly hazel and alder, possibly called D. petriniae.
- Three species have been found on burnt gorse, but they aren't confined to this host. The usual one may be D. fissa.
- One of these occurs mainly on birch (always burnt) within 1-5 years of forest fires. This is the D. loculata of Roy Anderson's article."

things appear to have moved on from the above (written in 2001) . . . as I have pointed out before in this thread, there are now 7 Daldinias on the GB list (Henrici mentions comments on 4 above - D. vernicosa has disappeared as a "confused name"; I shall try and get some information on Daldinia decipiens, D. loculatoides and D. caldariorum and see where they fit in . . . gulp

if anyone knows of any recent articles on this I'd be very interested

Chris

Chris, you mention above that one of the species is found on birch(always burnt), D: loculata, and one on unburnt wood, mostly hazel & alder D: petriniae,
i have found some specimens in the past in Clumber park on birch trunks that have not been burnt and in areas where there had been no fires, and as there are very few (if any, ash trees in clumber) which , in your opinion would be the most likely species that i found?



Brian.