This index lists over 1600 of the principal historical collections in the U.S. National Herbarium. The Historical Collections index can be searched by collector or country. The keyword box is provided for quick searches without use of the drop-down lists of terms. For best results, enter a succinct search term (e.g. "Allard" instead of "H.A. Allard"). First names of collectors often do not appear in this listing.
   To browse the entire list of collectors, leave the keyword blank and click the 'submit' button next to the keyword box.
   For more information, see About the Index.