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Ulmus procera

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Ulmus procera

by AndyAmphlett » Tue Nov 20, 2018 9:05 am


Ulmus procera is not listed under the entry for Ulmus (genus). See - ... onInstance, and go to Subdivisions. So searches for records of elms will not return any records of this species.


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name: Andy Amphlett

Re: Ulmus procera

by admin » Tue Nov 20, 2018 10:15 am

Hi Andy,

Thanks very much for reporting this. The hierarchy should resolve correctly as U. procera is listed with three parents (as a way of coping with complex aggregate problems) see ... onInstance taxon hierarchy.

Searches are not working correctly as the species-level 'Ulmus minor auct.' parent is confusing the process (a species is not normally expected to be the descendant of another species-level entry that is not an explicit aggregate (except for some edge-cases involving rose hybrids). There could be other similar problems.

I'll investigate how to fix this.
Tom Humphrey
Database Officer, Botanical Society of Britain and Ireland (BSBI)
c/o Centre for Ecology and Hydrology,Maclean Building, Crowmarsh Gifford, Wallingford, Oxon, OX10 8BB, UK.
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