Answer the following questions

Plant Taxonomy of Angiosperm

Taxonomy and Systematic Botany

6. What is the role of national gardens in conserving biodiversity – discuss

• Aesthetic value touristspots

• Wide range of species knowledge about bio diversity and provide material for Research

• Can integrate diverse fields such as Anatomy Phyto Chemistry Physiology, Ecology etc

• They are conservative centres especially for rare endangered species

• Provide annual list of species & free distribution of seeds

• Various attractions such as Arsboreum, Germplasm collection, Bambusetum, Insectivorous plants, The Great Banyan tree are major attractions available in National gardens in India, such as Lucknow, Trivandrum, Yercard, Kolkata respectively.

• Thus National Gardens conserve bio diversity of a nation that is unique for the nation and help in bio diversity study of nation 

7. Where will you place the plants which contain two cotyledons with cup shaped thalamus?

• Two cotyledonous plants are kept under Dicotyledonou

• Cup shaped thalamus is an unique feature of the series Thalamiflorae of subclass Polypetalae

Class : Dicot

Subclass : Polypetalae

Series : Thalamiflorae

8. How does molecular markers work to unlock the evolutionary history of organisms?

• Molecular markers, helps in establishing the phylogentic relationship of different plant groups at DNA Level.

• This DNA cloning and sequencing methods help to unlock that treasure chest of information on evolutionary history of organisms different molecular markers, like allogymes, Mitrochondrial DNA, Microsatellites PFLP, RAPD, AFLPs SNP Micro chips, Arrays etc are used as molecular markers in thus help in understanding the evolutionary patterns of biodiversity are investigated.

9. Give the floral characters of Clitoria ternatea.

Flowral diagram

10. How will you distinguish Solanaceae members from Liliaceae members?

Solanaceae (Dicot) Morphology

• Bulbous stem / rhizome / corm absent but stem tuber present

• eg. Solatium tuberosum

• Radical leaves Cariscup Absent from roots

• Leaves alternate & exstipulate

• Flowers – Pentamerous

• Calyx - Persistent -Solanum melongena

• Corolla of various shapes present

• Stamens - 5 - Epipetalous

• Carpels  

^|→ Ovary superior

^|→ bicarpellary, bilocular

Carpels oblipuely placed bicarpellary later become tetra carpellary due to the formation of false septa

• Fruits - Berry / capsule

• Anatomy:

Bi-collateral Vascular Bundles occur

Cambium present

Secondary growth present

Liliaceae (Monocot) Morphology

• Bulbous Stem - Lilium

Rhizome - Polygonatum

Corm Occur - Colchicum

• Radical leaves present eg. Lilium

• Slipules absent exstipulate fleshy and hollow

• Flowers - Trimerous

• Calyx, Corolla - Absent

• Perranth is only present

• Stamens - 6 - In a whorls of three each apostamenous

• Ovary superior tricarpellary trilocular

• Fruits - Loculierdal capsula

• Anatomy:

Conjoint collateral Vascular bundles

Cambium absent

No secondary growth