Taxacom: Chromosera loreleiae!

[John Grehan]

Wonderful photos! Reminds me of the brilliant blue toadstools I used to see
on the forest floor in NZ where the blue incongruously contrasted with the
prevailing browns, greens, and yellows of the habitat.

This paper is top notch in having both ingredients dear [well at least to a
few] to a biogeographers heart - a phylogeny and distribution maps. And as
the author's infer, the distributions are consistent with allopatric
divergence (vicariance) of a widespread ancestor. The initial break is in
Germany (viola) sister to three main clades. The 'citrinopallidae clade
having a northern Atlantic track (cf citrinopallida) and a southern
Atlantic track (Xanthochroa) as well as a localized Vancouver species. The
'ambigua' group repeats the Atlantic connection (Germany/Europe-Quebec),
and the 'loreleiae' clade with vicariance of a Eurasian and N American
species that are sister to a W N American clade (all allopatric).

In a sense I would agree that divergence is about 'dispersal barriers' but
the 'barriers' are not self evident. In general terms, "Continents
separated by oceans and large continents lacking contiguous habitat
can...lead to allopatric speciation" Interesting here is the historical
context. For example, the trans-Atlantic citrinopallida and xanthrochroa
are both trans-Atlantic species, so the Atlantic was not a 'dispersal'
barrier, and yet the two species are partially allopatric (just some
overlap in Europe it seems), and entirely allopatric to citrinopallidae of
Vancouver. So what is the context of their divergence that would seem to
indicate a pre-Atlantic origin ? And I noticed how cf citrinopallidae is
present in the N Atlantic, a region of extensive tectonic activity,
including the iceland hotspot moving east from Greenland, and large guyots
(former subaerial islands) south of the Azores. All these considerations
may point at least to a late Cretious origin. Regardless of what any may
think of these off the cuff thoughts, the fact is that these fungi are
distributed very much the same as many other animal and plant taxa. These
notes are made very quickly and apologies for any errors or name typos.

I'll also forward some comments to the authors directly.

Cheers, John Grehan

On Sat, Mar 1, 2025 at 12:35?AM aceska--- via Taxacom <taxacom at lists.ku.edu>
wrote:

> I feel that some rules in the ICN of algae, etc. limit the number of
> consecutive vowels in the names of taxa. Is the specific epithet
> ?loreleiae? still within the limits?
>
> Adolf ?e?ka
>
>
>
> From: BayAreaMushrooms at groups.io <BayAreaMushrooms at groups.io> On Behalf
> Of debbie viess via groups.io
> Sent: Wednesday, February 26, 2025 1:45 PM
> To: BAMS <bayareamushrooms at groups.io>
> Subject: [BayAreaMushrooms] Say Hello to Chromosera loreleiae!
>
>
>
> Hey Gang,
>
> New paper just out on the genus Chromosera, discussing its worldwide
> distribution. Fine collaborative job by many, including some of our top NA
> amateur mycologists.
>
>
>
> Here in CA, Instead of Chromosera "cyanophylla," we now have Chromosera
> loreleiae, named after the late Lorelei Norvell, a PNW mycologist, editor
> of Mycotaxon, Phaeocollybia expert and wonderful human being. She is
> missed. Think of her when next you find this gooey beauty!
>
>
>
>
> https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fphytotaxa.mapress.com%2Fpt%2Farticle%2Fview%2Fphytotaxa.690.1.2%3Ffbclid%3DIwY2xjawIsZbVleHRuA2FlbQIxMQABHZwgYXZCa2BokdC5Zn9wHeSIPR7gJLE14wDftRhJO1gZ8NjB-5u3fSbK8g_aem_AO4pTxpTKfon6KBDh0H_9Q&data%7C02%7Ctaxacom%40lists.ku.edu%7C6268416d0dd743345e4108dd58e3757c%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C638764456137208725%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=PwOrD7Z4ZTxt1kU%2BuQlK1IvYi%2FDMZ2AQzXH%2BcOmjB3Y%3D&reserved=0
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>
>
>
>
>
> My photo of C. loreleiae, found in the Sierra in 2009, back when we were
> calling it cyanophylla.
>
>
>
> Debbie Viess
>
> _._,_._,_
>
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