I check the section and indeed there is no search option which could make finding a taxon quite handy when you have a large list. I created a PITS
about this feature, so you can vote for it and monitor its status.
the Telerik team
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items