Hint:The herbarium is a collection of the preserved plant specimen. The herbarium is a document that provides a record of botanical diversity. It helps in the exact identification of plant species. It is useful for research and teaching purposes.
Complete answer:Steps involved in herbarium preparation:
Collection and pressing of the specimen- Plant specimen is collected from the field and pressed. Usually, two to three specimens of the same sample are collected.
Drying of the specimen- Blotting paper is used as it absorbs moisture.
Mounting of the specimen on herbarium sheet- Well pressed and the dried specimen is now mounted on C herbarium sheets with help of glue. Sometimes thread and needle are used to stitch the specimen.
Labeling of the specimen- On the right side lower corner of the herbarium sheet labeling is a mandatory step. Information to be entered is as below-
Serial number: ….
Botanical name: ….
Local name: ….
Site of collection / Place: ….
Date of collection: ….
Collected by: ….
Now properly mounted and labeled sheets are preserved for future studies and are arranged according to the classification system.
Yearly fumigation is mandatory with a suitable insecticide to prevent herbarium sheets from beetle attack.
So, the correct answer to the given question is option B. Herbarium
The repository of plant taxonomy and systematics is Herbarium.
Note: Herbarium is essential for the study of plant taxonomy. Herbarium helps us to understand the geographical distribution of particular species. It plays an essential role in stabilizing the nomenclature.