About the database of the herbarium ZSS

From 1988 onwards, all new additions were recorded directly in a database, and at the same time the subsequent recording of the documents already available at that time was started. This subsequent recording has now been completed for the dry specimens and the herbarium sheets. In the case of the wet specimens, around 2000 specimens remain to be re-recorded, and only a small part of the seed collection, comprising around 10,000 numbers, has been processed.
Overall, however, 80% of the ZSS herbarium is now catalogued and electronically accessible. The type status has been critically checked in almost all cases, but omissions and misnomers cannot be ruled out (corrections / additions are welcome). As the type collections of many taxa are also in culture, the type status of individual specimens is not easy to assess in many cases. At present, no digital image data are available, not even of the type specimens. The vast majority of type specimens are either voluminous dry specimens or alcohol specimens, and therefore cannot be photographed easily or without damage.

Type specimens

In addition to the usual designations holotype, isotype etc., the following two designations can also be found in the voucher data of our herbarium:

Type Collection: Material of the type collection that cannot be assigned a formal type status or that was prepared from living plants of the type collection after the publication of the protologue.
Type Number: For some collectors (e.g. F. Ritter), the collection number is not a unique identifier of the type collection, as material was collected under the same number at different localities or at different times.

Scope of data accessible on the Internet

A large proportion of the succulent plants are listed in the CITES Appendices, and the location data are therefore worthy of protection.
At the same time, we also consider the data on collector names and collection numbers to be largely worthy of protection. Accordingly, this data cannot be viewed on the Internet, or only to a limited extent.

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