BOTANY

Detailed explanation-1: -A voucher herbarium specimen is a pressed plant sample with collection data deposited for future reference. It supports research work and may be examined to verify the identity of the specific plant used in a study. A voucher specimen must be deposited in a recognized herbarium committed to long-term maintenance.

Detailed explanation-2: -A specimen is a single plant or animal which is an example of a particular species or type and is examined by scientists. 200, 000 specimens of fungus are kept at the Komarov Botanical Institute.

Detailed explanation-3: -Plant collections are essential components of systematic research. Collections generally consist of samples of plants that are preserved by drying or by means of liquid preservation. They may also include live plants or propagules taken from the wild and grown in an artificial environment.

Detailed explanation-4: -Preserved plant specimens give us information about plant diversity and distribution. A good plant collection is of lasting benefit. It is like a 3-D photograph, representing information that is frozen in time and made available for all time. People still study specimens collected in the 1600s.