Select the tab for the type of search. Each tab has everything you need to do to perform that type of search.
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This search will show only accessions that have material that may be requested, including those not seasonally available.
You may list accessions with separators (commas or semicolons, as shown below) or by entering them on separate lines, such as
PI 651794
PI 651649
PI 651650
When searching a range of accessions, use the Advanced Search tab with the Accession Identifier Range criterion.
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Your query included:
All accessions
taxonomy genus name like Pterocephalodes