Current plant names?

[Bill Williams]

Here's a naive nomenclature question: I have vascular-plant keys that
are about ten years old now, and presumably at least some of the plants
therein have been renamed according to the proper ICBN procedures since
the keys were published.  Is there any simple way to find out what the
currently accepted name is (and higher-level taxa, if those have
changed)?
_______________________________
Bill Williams
bwilliam at oyster.smcm.edu
Dept. of Biology
St. Mary's College of Maryland