For the time being there are about 20k botanic object shared with EEXCESS from AMBL that do have geotag info with it.
It seems that the X and Y coordinates are being mixed up, because I just realizes some "flags" in the Dashboard are being posted somewhere in northern africa, instead northern switzerland:
E.g.:
https://kgapi.bl.ch/solr/kim-portal.objects/select?q=objekttyp%3ABiologie&wt=json&indent=true
First object with coordinates
47.4658856984953,7.81000478799931 => Schulstrasse 10, 4450 Sissach, Baselland, Switzerland.
7.81000478799931,47.4658856984953 => Unknown Place, Ethiapia