Flora refers to the naturally occurring plant life of a specific region or time. The word Flora comes from the Latin word “Flora” which is name of the Roman goddess of flowers and fertility.
Flora is further divided into three groups, native flora, agricultural flora and weed flora. Native flora of a place encompasses all the plant species that are indigenous to that area, and have not been imported from other regions. Agricultural flora means the plants and vegetables that are grown again and again by the residents of that area in gardens and farms, while weed flora are those herbs or plants that are considered useless by the human beings, who eradicate them to strengthen useful flora, both native and agricultural.
All the unicellular and multi-cellular bacterial organisms such as algae and fungi are also categorized as flora, but a separate term, bacterial flora is used to describe them.
Image courtesy: camilo-faunayflora.blogspot.com
Fauna is all of the wildlife of any specific area of time. The word fauna comes from Latin word “Faunus”, the name of a Roman god, and Fauna, the name of a Roman goddess of earth and fertility. It is a collective noun that relates to all wild life in a place, from mammals to reptiles to birds. There are many subdivisions; Infauna, Epifauna, Macrofauna, Megafauna and Meiofauna.
Infauna includes aquatic animals, epifauna is a subgroup of infauna and includes species found at the bottom of the sea.
Macrofauna are small organisms found inside the soil, megafauna refers to vertebrates and reptiles living on land and meiofauna includes all species of invertebrates.
Image courtesy: commons.wikimedia.org