Issue 18334
Senecio jacobaea exists 4 times in new backbone
18334
Reporter: mdoering
Type: Bug
Summary: Senecio jacobaea exists 4 times in new backbone
Priority: Critical
Resolution: Fixed
Status: Closed
Created: 2016-03-22 11:30:25.057
Updated: 2016-07-15 15:46:01.508
Resolved: 2016-07-15 15:46:01.475
Description: Senecio jacobaea Brot. ex Willk. & Lange species
-> accepted, 149k occurrences
Senecio jacobaea L.
-> synonym of Jacobaea vulgaris Gaertn., 3,5k occurrences
Senecio jacobaea Kunze species
-> doubtful, 2,5k European occurrences, 2 child varieties
Senecio jacobaea D.Don species
-> doubtful, no occurrences
http://mdoering.github.io/nub-browser/app/#/taxon/3097243
From Euro+Med & Tropicos it appears only the Linnean synonym is recognized
The Plant List does contain all those names above, treats the Linnean version as a synonym and has all others as "unresolved":
http://www.theplantlist.org/tpl1.1/search?q=Senecio+jacobaea
It seems correct that all those names are in the backbone, but as far as I have reviewed all occurrences come in as plain "Senecio jacobea" or "Senecio jacobea L." and should therefore not be attached to any of the non Linnean names. Examples:
http://www.gbif-uat.org/occurrence/1075246666/verbatim
The occurrences attached to S. jacobea Kunze appear to be linked to the 2 varieties:
Senecio jacobaea var. jacobaea
http://www.gbif-uat.org/occurrence/1096936442/verbatim
(verbatim=Senecio jacobaea subsp. jacobaea)
Jacobaea vulgaris subsp. gotlandica (Neuman) B.Nord.
http://www.gbif-uat.org/occurrence/1123210939/verbatim
(verbatim=Jacobaea vulgaris subsp. gotlandica)
So this is mostly an issue with occurrence name matching which has to be improved to deal with authorship and probably better consider ranks.
In order to allow the species matching to prefer matches to Linnee instead of the accepted Willk. & Lange name that name should also be doubtful and not accepted.
As improved species matching is handled in POR-2768 this issue should focus on making Senecio jacobaea Brot. ex Willk. & Lange doubtful instead]]>
Author: mdoering@gbif.org
Created: 2016-07-15 12:46:27.334
Updated: 2016-07-15 12:46:27.334
The occurrence matching is resolved now, but the Senecio/Jacobaea taxonomy is a bit messed up in our backbone as far as I can tell:
{noformat}
Jacobaea vulgaris Gaertn.
*Jacobaea vulgaris Moench, 1794
*Jacobaea vulgaris var. vulgaris
*Senecio jacobaea L.
*Senecio jacobaea subsp. jacobaea
*Senecio jacobaea var. jacobaea
*Senecio flosculosus Jord.
*Senecio jacobaeoides Willk.
*Senecio montanus Kit., 1814
*Senecio nemorosus Jord.
Jacobaea vulgaris subsp. vulgaris
Jacobaea vulgaris subsp. dunensis (Dumort.) Pelser & Meijden
*Senecio dunensis Dumort.
*Senecio jacobaea subsp. dunensis (Dumort.) Kadereit & P.D.Sell
*Senecio jacobaea subsp. nudus (Weston) Soják, 1980
*Senecio jacobaea var. discoideus Wimm. & Grab.
*Senecio jacobaea var. flosculosus DC., 1805
*Senecio jacobaea var. nudus Weston, 1777
Jacobaea erratica (Bertol.) Fourr.
*Senecio jacobaea var. barbareifolius Fiori
Jacobaea aquatica (Hill) G.Gaertn., B.Mey. & Scherb.
*Senecio jacobaea subsp. barbareifolius Krock.
Hippolytia tomentosa (DC.) Tzvelev
*Senecio jacobaea var. grandiflorus Turcz. ex DC.
Senecio jacobaea Brot. ex Willk. & Lange
Senecio jacobaea L. var. gotlandicus Neuman
*Jacobaea vulgaris subsp. gotlandica (Neuman) B.Nord.
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As Senecio jacobeae appears to be moved to its own genus Jacobaea, the subspecies Jacobaea vulgaris subsp. gotlandica should probably be accepted and the currently accepted Senecio variety be synonymized under it. See also a recent paper about the origins of J.v. gotlandica: http://www.jstor.org/stable/27757007?seq=1#page_scan_tab_contents
I will add the gotlandica subspecies to our patch list