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The process of pinning insect specimens is a dry method to preserve and display collections and requires special entomological equipment to accomplish effectively. [1] It is used primarily for hard-bodied, medium to large specimens and is beneficial for easier study and color preservation.
It is not exactly known how long dry plant specimens last in storage, but with proper conservation, they have been able to last many centuries. Specimens collected by Linnaeus in the eighteenth century and by Banks and Solander on the Endeavour voyage in 1788 are still excellently preserved. [4] The specimens may be whole plants or plant parts.
Bird and mammal specimens are conserved as dry study skins, a form of taxidermy. [1] The skin is removed from the animal's carcass, treated with absorbents, and filled with cotton or polyester batting (In the past plant fibres or sawdust were used). Bird specimens have a long, thin, wooden dowel wrapped in batting at their center.
Drying herbs is a great way to preserve that garden-fresh summer flavor throughout the year. It requires minimal effort and it's so much more affordable than buying dried herbs from the store.
The chaste tree makes a spectacular lawn specimen, or several can be planted in a row along a driveway or property line. It is also effective as a background plant in a mixed sunny border garden .
The specimens, which are then mounted on sheets of stiff white paper, are labelled with all essential data, such as date and place found, description of the plant, altitude, and special habitat conditions. The sheet is then placed in a protective case. As a precaution against insect attack, the pressed plant is frozen or poisoned, and the case ...
However, they are vulnerable to insects and even plant growth, before proper cleaning. Pests, for example, are attracted to the fat, grease, or remaining tissues in, or on bone. Plant growth is a further concern, "Archaeological specimens are generally covered with dirt and are often penetrated by the roots of small plants," [ 21 ] upon initial ...
It also preserves the body colors of some insects, such as dragonflies, that would otherwise lose their color, especially if there is a liquid layer to saturate their body tissues. A disadvantage is that, although the insects are quickly stunned by ethyl acetate, it kills them slowly and specimens may revive if removed from the killing jar too ...