Plant Systematics — DU B.Sc. (Hons.) Botany Previous Year Question Papers

Q1. (a) Fill in the banks (any five): (5x1=5) (i) The taxonomic category indicated by the suffix- 'ales' is -- (11) - - is the author of Vrikshayurveda. (111) A -- - group includes a single common ancestor and all of its descendants. (iv) - is the alternative name of the family Cruciferae. (v) The size of the standard herbarium sheet is - (vi) 1" May, 1753 is the starting date of - (b) Answer the following (any five): (5x1=5) (1) an example of a tautonym (i) the primitive living angiosperm that is considered as sister to all other extant angiosperms (iii) an example of a plant name with specific epithet named after a country (iv) type genus of family Apiaceae (V) a monotypic family (vi) author of Flora of Delhi (c) Expand the following (any five): (5x1=5) Q2. Differentiate between any five of the following: (5x3=15) (i) Natural and artificial systems of classification (ii) Homonym and Synonym (iv) Flora and Manual (v) Morphological and Biological species concept 03 Write short notes on any three of the following: (3x5=15) Role of botanical gardens in plant taxonomy (ii) Co-evolution of angiosperms and animals (iii) Herbaceous origin of angiosperms (iv) Rejection of plant names (v) Taxonomic hierarchy (a) Briefly explain the role of palynology in resolving taxonomic problems citing any three examples. (2+3) (b) Compare Bentham and Hooker's system of classification with Engler and Prantl's system of classification. (5) (c) Enumerate the principles of Numerical Taxonomy (5) (b) Discuss the Principle of Priority with an example. Give an account of its limitations. (c) Interpret the following: (5) (ii) Euonymus indicus Heyne ex Wall. (1) (iii) Cynodon dactylon (Linn.) Pers. Panicum dactylon Linn. (2) (iv) Rosa webbiana + Rosa floribunda (1)