Research Natural Areas described in this guidebook are indexed here according to species of tree
and selected important range plants present there. The areas are coded here according to the listings
provided in table 1 and on the back cover of this report. Plants are arranged alphabetically by
scientific name. A species, when present in small quantities, may be indexed for a Research Natural
Area but not appear in the text writeup; indexing is based on field notes or other documentation in
such cases.