i. Theophrastus i. Systematics
ii. Dioscordies ii. Due Historia Plantarum
iii. Linnaeus iii. Species Plantarum
iv. Simpson iv. Materia melica
i. Madras Herbarium located in Madras.
ii. Voucher specimens used to
study floristic diversity.
iii. Herbarium does not play a
role of conservation biology
iv. KEW Herbarium preserved manuscripts,
periodicals, botanical illustrations in addition to plant specimens