Taxonomic Swap 64880 (Δημιουργήθηκε στις 09-10-2021)

Aceepted by POWO, noted in the Atlas of Florida Plants (http://florida.plantatlas.usf.edu/Plant.aspx?id=2943)
Notes from POWO:

First published in Fl. Ludov.: 13 (1817)
Accepted by

Christenhusz, M.J.M., Bangiolo, L., Chanse, M.W., Fay, M.F., Husby, C., Witkus, M. & Viruel, J. (2019). Phylogenetics, classification and typification of extant horsetails (Equisetum, Equisetaceae) Botanical Journal of the Linnean Society 189: 311-352.
Werier, D. (2017). Catalogue of the Vascular plants of New York state Memoirs of the Torrey Botanical Club 27: 1-542.

Not accepted by

Tropicos.org (2009-continuously updated). Tropicos.org. Missouri Botanical Garden http://www.tropicos.org/. [Cited as Equisetum hyemale.]

Literature
Kew Backbone Distributions

Verloove, F. (2019). Manual of the Alien Plants of Belgium http://alienplantsbelgium.be.

POWO (Αναφορά)
Προστέθηκε από thenatureofvalerie στις Νοέμβριος 11, 2019 0529 ΜΜ | Δημιουργήθηκε από kitty12 στις Οκτώβριος 09, 2021
αντικαταστάθηκε με

Σχόλια

@erwin_pteridophilos Did you see this draft swap? (I don't think it had a flag.)

Αναρτήθηκε από kitty12 περίπου 4 χρόνια πριν

Thanks, Kitty, yes i know about this draft, discussed this with @radekwalkowiak @choess and other iNat users. My personal view is, that differences are too weak for specific separation, populations of E. hyemale do differ a lot within Europe, Asia and North America, and i do suspect that intercontinental hybrids could be well fertile, as with crossings within species'.
Relatively minor genetic differences seem often to be over-valued, useful and diligent interpretation of gene sequences is at least the same important than to handle this tool.

Αναρτήθηκε από erwin_pteridophilos περίπου 4 χρόνια πριν

in my opinion there should be Equisetum hyemale affine, with
in the description / parenthesis = Equisetum praealtum,
this is my opinion based on current scientific knowledge in this particular topic ..
best regards,
: )

Αναρτήθηκε από radekwalkowiak περίπου 4 χρόνια πριν

@radekwalkowiak Once this swap is done, the synonymity will be built into the taxon description, so a search for or attempted use of Equisetum hymenale affine will result in the suggestion of the new taxon name. (I think it will also show up in brackets in searches, just not as the primary taxon name on the taxon's page.) The synonymy will also be noted on the Taxonomy tab for Equisetum praealtum once the swap is committed. I hope that addresses your concerns.

Αναρτήθηκε από kitty12 περίπου 4 χρόνια πριν

@radekwalkowiak Radek, i do suggest to remove this draft here, but to do it right the other way by swapping E. praealtum to E. hyemale ssp. affine.
Even in case there was a certain genetic gap between populations of E. hyemale in America and Eurasia, this was no forcing reason for splitting into distinct species'
However, as mentioned elsewhere by Christopher @choess E. hyemale ssp. affine rather proved to be nested within the species, but not to be separated from. This is in contradiction to splitting, which seems to be needless and useless by that. Since E. praealtum is still active, the number of IDs leading to ID as "Equisetum" is increasing, see https://www.inaturalist.org/observations?ident_taxon_id=964077&locale=en&subview=grid&verifiable=any

Αναρτήθηκε από erwin_pteridophilos πάνω από 3 χρόνια πριν

ok !

Αναρτήθηκε από radekwalkowiak πάνω από 3 χρόνια πριν

Can we go ahead and commit this, one way or the other? Having both synonyms is causing some problems.

Αναρτήθηκε από dryopteris2 πάνω από 2 χρόνια πριν

I've reversed the draft swap to swap praealtum into hyemale ssp. affine, which I think is the correct direction--comments should be modified before committing

Αναρτήθηκε από choess πάνω από 2 χρόνια πριν

: )

Αναρτήθηκε από radekwalkowiak πάνω από 2 χρόνια πριν

agreed to keeping E. hyemale as single holartic species, but not to divide without covincing arguments. There seems to exist a mental, but no real barrier between "E." and "W."hemisphere, our aim is to overcome likewise boundaries of thinking and getting aware.

Αναρτήθηκε από erwin_pteridophilos πάνω από 2 χρόνια πριν

: )

Αναρτήθηκε από radekwalkowiak πάνω από 2 χρόνια πριν

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