DENDROLOGY

Detailed explanation-1: -Today is the 290th anniversary of the birth of Carolus Linnaeus, the Swedish botanical taxonomist who was the first person to formulate and adhere to a uniform system for defining and naming the world’s plants and animals.

Detailed explanation-2: -Presence or absence of a differentiated body-root, stem and leaf. Presence or absence of vascular tissues-xylem and phloem. Presence or absence of seeds-cryptogams and phanerogams.