A herbarium is a collection of preserved plant specimens. The specimens may be whole plants or plant parts usually in a dried form and mounted on a sheet. Mounting is done with glue, tape, and in one case wire. Small envelopes are also used for some specimens or seeds.
A specimen of American ElmTables set up in the hallway for working and viewing (cabinets of specimens are to the right)Specimans are organized by families (ending in aceae)Cabinets are labeled by family and genusElizabeth Pixley showing the specimens organized by species inside cabinetsSpecimen labels include family name, genus, species, location & date of collection, and collector name and sometimes stamps for viewer recordingBethan impressed by the blue coloring of the Mertensia virginica after 115 yearsTom Crocker assisting with the opening of a hallway storage cabinet Insect control once managed by moth balls can also be dealt with by freezing specimens Many of the specimens had artistic value. It's important to invert a leaf for future reference.