Flagger Content Author Content Reason Flag Created Resolved by Resolution
choess Australian tree fern (Cyathea cooperi)

appears to be a taxonomic synonym of Sphaeropteris cooperi

Oct. 18, 2018 22:23:19 +0000 choess

changed committed--compatible with POWO and PPG I

Comments

This is a synonym of Sphaeropteris cooperi (Hook. ex F.Muell.) R.M.Tryon
http://plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:17312590-1

Posted by franzanth over 4 years ago

Generally accepted as Cyathea cooperi here in Australia (currently, anyway). Only Florabase, the WA online flora uses Sphaeropteris cooperi
https://florabase.dpaw.wa.gov.au/browse/profile/12744

Flora of Australia
https://bie.ala.org.au/species/https://id.biodiversity.org.au/taxon/apni/51300013

Flora of NSW
https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Cyathea~cooperi

Flora of Victoria (usually the most up to date, seems to have bug at the moment, so not sure the link works)
https://vicflora.rbg.vic.gov.au/flora/search?q=Cyathea%20cooperi

Cheers :)

Posted by rgvhf over 2 years ago

This is a widespread weed globally, a nasty invasive, and is phylogenetically resolved in Sphaeropteris, so it seems problematic to treat it in Cyathea in the context of a global taxonomy.

Here is the most recent classification of Australian Ferns and Lycophytes (Field 2020)
file:///Users/sphaerostephanos/Google%20Drive/Literature/Cyatheaceae/Field_Australian_PPG.pdf

It is a hugely problematic invasive species in Hawaii:
https://link.springer.com/article/10.1007/s10530-012-0291-0

Flora of California also treats it as Sphaeropteris:
https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=89353

Posted by susanfawcett over 1 year ago

agree with @susanfawcett, this taxon should be treated according to POWO, as proposed by @franzanth.
Draft for taxon swap:
https://www.inaturalist.org/taxon_changes/123560
@susanfawcett @franzanth @kitty12 does that look alright?

Posted by martinwettges about 1 year ago

I'd run this by @choess

Posted by susanfawcett about 1 year ago

My inclination would also be to remove the genus Cnemidaria (syn. Cyathea). The jury is out on Gymnosphaera (syn. Alsophila according to PPG I), but will soon be revisited by PPG II. Sphaeropteris cooperi really shouldn't be recognized in Cyathea unless all Cyatheaceae are treated in a single genus.

Posted by susanfawcett about 1 year ago

I'm happy to see it swapped into Sphaeropteris. I've been leaving some things like Blechnaceae alone in deference to the NZ/AU lumpers but in light of its wide global spread I'm OK with this change.

Posted by choess about 1 year ago

It would be best for someone to run through the full genus and apply all the swaps needed to sort out Cyathea s.s. - of course involving the genera mentioned here.

Posted by jeremygilmore about 1 year ago

Queensland herbarium, Australia, also uses Sphaeropteris cooperi
Census of the Queensland Flora and Fungi 2022 https://www.data.qld.gov.au/dataset/census-of-the-queensland-flora-and-fungi-2022 (see link to Full data set which is searchable using an online form)

Posted by craig-r 7 months ago

any updates here?

Posted by thebeachcomber 6 months ago

The taxon swap page has been there stagnant for almost a year now. I'm all for it. Our main vascular plant database (https://acores.flora-on.pt/#/1sphaeropteris) also uses Sphaeropteris, and because INat uses Cyathea my observations can't get imported to there.

Posted by j_orfao 4 months ago

@j_orfao as an aside from the swap, how come that database doesn't have synonym matching set up?

Posted by thebeachcomber 4 months ago

@thebeachcomber It does have it, but only for certain species. I suppose the coordinator of the database either has problems including the synonyms or he just simply forgot to add them. I might have to message him about that.

Posted by j_orfao 4 months ago

Now that this swap has been committed, there’ll be some cleanup work needed to address unintended disagreements now where obs had one ID of Cyathea and then one or two to species

Posted by thebeachcomber 4 months ago

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