Plant scientific name standardisation using WorldFlora package

I am running this code to check for the scientifc name match:
native_tree_species_match <-[1:1000, ], =, == "TaxonName", Authorship == "Author"))

and receiving the below warning message:
In if (class( %in% c("data.frame") == FALSE) { :
the condition has length > 1 and only the first element will be used

The result doesn't make sense. If anybody can help to save me from more troubles.

Hi, welcome to the forum.

We need a FAQ: How to do a minimal reproducible example ( reprex ) for beginners

A handy way to supply some sample data is the dput() function. In the case of a large dataset something like dput(head(mydata, 100)) should supply the data we need.

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