The correct option is B Flora, manual, monograph
Flora, manuals, monographs and catalogues are the means of recording descriptions. Flora contains the actual account of habitat and distribution of plants of a given area. These provide the index to the plant species found in a particular area.
Manuals are useful in a providing information for identification of names of species found in an area. Manual is useful in providing information for the identification of names of species found in an area.
Monographs contain information on any one taxon. Monograph is a complete global account of a taxon of any rank – family, genus, or species at a given time.
Botanical gardens are institutions that collect live plants of different plant species -ornamental, cultivated, wild, medicinal plants, plants of economic and special interests and from various geographic areas.
A process of collecting different plant species, which are dried, pressed and mounted on herbarium sheets and classified according to the classification system, is termed herbarium.
A museum is a building or institution that cares for and displays a collection of specimens, models and other objects of artistic, cultural, historical, or scientific importance.
A taxonomic key is a device for quick and easy identification of unknown species of plant or animal. The key consists of a series of choices, based on observed features of the plant or animal specimen.