A slightly less labor-intensive mounting method is using linen mounting strips. In pictures, these often look like pieces of white tape affixing the plant to the paper. In reality, this "tape" is archival-quality linen treated with an adhesive on one side that becomes sticky when wetted. Using strips to mount plants is not always quick, but it protects the plants' DNA and allows future users to manipulate plant parts more easily.
Archival quality glue is also widely used to mount specimens, often in tandem with one of the other methods described above. The person mounting the specimen brushes, blots, or otherwise spreads the glue on one surface of the specimen (sometimes by dipping the specimen in a glue puddle) and carefully arranges the specimen on paper. Before letting the glue dry, the mounter must weigh down the specimen to ensure tight gluing, often by covering the specimen with wax paper and placing a weight or several weights on top. The result is―hopefully―a neatly and securely affixed specimen that lasts for hundreds of years. A skilled mounter can produce a specimen with little evidence of the adhesive; however, glue can also be messy and can complicate DNA extraction from plant tissues.
Regardless of the adhesive used, mounting specimens is a blend of science and art. Important structures such as flowers and fruits must be clearly displayed for identification and measurement, leaves must be splayed out to show their full shapes, and there must be room on the specimen for the data-rich label and future annotations. At the same time, well-mounted specimens can embody the life and beauty of the plants they display, and most mounters work hard to produce specimens of high aesthetic quality. Some are more creative than others (see the arrangement of the aquatic plant shown below!), but all resulting specimens are vital snapshots of plant diversity in space and time.