In recent years, CETAF (Consortium of European Taxonomic Facilities) institutions have started to enrich their collection data with links to semantic resources (e.g. persons or geographical units). In this way, it is possible for the first time to represent distributed collections as a unified information space and to enhance them with various external resources. An example of this approach is this "Botany Pilot", in which diverse data on collectors of botanical specimens are made accessible by linking a reliable and stable person ID (e.g. a so called QID in Wikidata). This includes, for example, biographical data from Wikidata, specimens in different herbarium collections, publications in BHL (Biodiversity Heritage Library) and, more recently, entries from Based on a single person identifier, the respective information is dynamically pulled together with linked data mechanisms from a growing number of web resources.

Best practices on CETAF identifiers in general are compiled at
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Participating institutions


Heinrich von Handel-Mazzetti
  * 1882   † 1940
Austrian botanist (1882-1940)
Heinrich Freiherr von Handel-Mazzetti, H. R. E. Handel-Mazzetti, Hand.-Mazz.

Claimed natural history specimens collected or identified by Heinrich von Handel-Mazzetti

Scientific Name Country Institution Date
Oncophorus virens (Hedw.) Brid. var. serratus Bruch, Schimp. & W.GümbelAutricheMNHN1903-8
Bazzania tricrenata (Wahlenb.) Trevis. var. cavernarum Schiffn.[autriche]MNHN1903-8-3
Bazzania flaccidaAustriaS
Lophozia confertifoliaAustriaMICH1903-09-04
Isoëtes hypsophila Hand.-Mazz.ChinaW1915-07-13
Arisaema hunanense Hand.-Mazz.ChinaWU1918-05-14
Pilea monilifera Hand.-Mazz.ChinaWU1916-06-20
Arisaema handelii Stapf ex Hand.-Mazz.ChinaWU1916-06-15
Euonymus clivicola W. W. Sm.ChinaWU1916-06-16
Rhododendron sanguineum Franch.ChinaWU1916-06-16


Virtual International Authority File of Heinrich von Handel-Mazzetti

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