- It is a store house (repository) of plant specimens that are dried, pressed and preserved on sheets and are arranged according to universally accepted classification.
- Herbarium sheets are labelled with information about date and place of collection, English, local and botanical names, family, collector’s name etc.
b. Botanical gardens
- These are specialized gardens having collections of living plants for reference and identification.
- Each plant is labelled with its botanical name and family.
- Famous botanical gardens:
o Royal Botanical Garden at Kew (England).
o Indian Botanical Garden, Howrah (India).
o At National Botanical Research Institute, Lucknow (India).
c. Biological Museum
- It is a collection of preserved plants and animals for study and reference.
- A museum contains
§ Specimens preserved in preservative solutions in containers or jars.
§ Preserved dry specimens of plants and animals.
§ Insects preserved in insect boxes after collecting, killing and pinning.
§ Stuffed larger animals like birds and mammals.
§ Collections of animal skeletons.
d. Zoological Parks (Zoos)
- These are the places where live wild animals are kept in protected environments under human care.
- It helps to learn about their food habits and behaviour.
- It is an analytical method of identification of organisms based on similarities and dissimilarities.
- It is based on the contrasting characters generally in a pair called couplet.
- Each couplet has two opposite options. Of these, only relevant option is accepted and other is rejected.
- Each statement in the key is called a lead.
Flora, manuals, monographs & catalogues
- Flora: Actual account of habitat and distribution of plant species of a given area.
- Manuals: The record that contains information for identification of names of species found in an area.
- Monographs: The records that contain information on any one taxon.
- Catalogue: Alphabetical list of species.