Observation 164351: Daldinia Ces. & De Not.
When: 2014-04-27
No herbarium specimen

Proposed Names

-26% (3)
Recognized by sight: D. childiae appears to be the current name.
54% (3)
Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Thanks Rocky and Patrick…
By: Dave W (Dave W)
2014-05-05 17:24:42 PDT (-0700)

for the combined effort explaining the NA Daldinia taxonomy update. Looks like the NA entity recently referred to as D. concentrica (not seen in this obs) is probably an unnamed species.

Daldinia childiae
By: Patrick R. Leacock (MycoGuide)
2014-05-05 11:32:42 PDT (-0700)

Daldinia childiae is the widespread common species we have in USA and Canada. The Europeans corrected their concept for Daldinia concentrica based on the original material and illustrations associated with that name. The new worldwide Monograph that Rocky listed confirms that Daldinia concentrica only occurs in Europe. The new asco book was done before the monograph and its authors were unaware of the correction in the concept of D. concentrica (they are now). There are however many species of Daldinia in North America and we can’t call everything D. childiae without checking the characters and chemistry (KOH extract color).

The NA asco field guide…
By: Dave W (Dave W)
2014-05-02 21:01:38 PDT (-0700)

lists “Cesati and de Notaris” as the authors of D. concentrica which occurs on beech in northern NA.

It is kind of funny
By: Rocky Houghtby
2014-05-02 04:35:05 PDT (-0700)

That it WAS in America until a neotype was selected from material that doesn’t represent NA collections. I think Bessette and Beug are on to something regarding childiae- the differences in ecology between NA collections could point at two or more taxa. I can’t afford that Asco book myself, so I am not fully informed in the topic.

Interesting discussion.
By: Daniel B. Wheeler (Tuberale)
2014-05-02 04:21:34 PDT (-0700)

I was unaware that D. concentrica was not in NA.

It just occurred to me…
By: Dave W (Dave W)
2014-04-30 03:45:08 PDT (-0700)

this is an ascomycete. Time to start using my new copy of Beug/Bessette. According to this source, D. concentrica occurs in northern NA, (exclusively) on beech. D. childiae is portrayed as a separate species with more widespread NA distribution, occurring on hardwood.

This collection was made in an area dominated by aspen, Tulip Poplar, oak, and hemlock; little, if any, beech. So it looks like D. childiae is a better fit for this over-wintered collection.

Rocky, it sounds to me like the species name “concentrica” is currently applied to an NA species which is different from the concentrica varieties you mention. In any event, it looks like the ones seen in this obs represent none of the entities currently named concentrica.

I dont believe
By: Rocky Houghtby
2014-04-29 19:39:04 PDT (-0700)

D. concentrica occurs in NA. The excerpt below is from- ’A polyphasic taxonomy of Daldinia (Xylariaceae)
Marc Stadler, Thomas Læssøe, Jacques Fournier, Cony Decock, Beata Schmieschek, Hans-Volker Tichy, Derek Peršoh

“Rogers et al. (1999) revised the concept of the type species, based on an original Bolton specimen that disagreed with the concepts of D. concentrica sensu Child (1932) and Ju et al. (1997), who had regarded this taxon to be almost cosmopolitan and frequent in the USA.. Rogers et al. (1999) selected an epitype for D. concentrica, based on material from the UK, and the species matching this concept has so far not been recorded from outside Europe. The cosmopolitan species reported as “D. concentrica” is now known as D. childiae.”

and again later, under the D. concentrica description-

“The D. concentrica group comprises the type species and several related taxa that are typically distributed in mild temperate and subtropical climates of western and southern Europe; some related taxa occur in tropical Africa and in the Southern Hemisphere. They have so far not been found in the Americas and the temperate regions of Asia, despite diligent search. All previous records of “D. concentrica“ from Asia and America obviously need to be revised.”

Thanks for the…
By: Dave W (Dave W)
2014-04-29 19:18:32 PDT (-0700)

clarification, Walt.

Daldinia concentrica
By: walt sturgeon (Mycowalt)
2014-04-29 18:08:31 PDT (-0700)

in the sense of Ces. & De Not. is still good at least today…

One entry in Index Fungorum…
By: Dave W (Dave W)
2014-04-29 16:57:58 PDT (-0700)

lists D. childiae as a currently accepted name with D. concentrica as a synonym. Another IF entry for D. concentrica does not mention D. childiae within the list of synonyms.

Are there two different species proposed here? It looks to me like we’re talking about one species, in which case it’s only a matter of which name better applies.

Daldinia concentrica (Bolton) Ces. & De Not.
By: walt sturgeon (Mycowalt)
2014-04-29 13:49:49 PDT (-0700)

is still considered a valid name.

Created: 2014-04-28 20:48:20 PDT (-0700)
Last modified: 2014-07-14 16:38:29 PDT (-0700)
Viewed: 134 times, last viewed: 2016-10-28 07:07:58 PDT (-0700)
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