1. ..\Desktop\How to use a dichotomous key.mp4

2. definition
Biological tool used for identification of organisms based on observable characteristics
A series of choices based on two alternative descriptions of the characteristics

3. Guidelines One characteristic at a time
Proceed from general to specific characteristic until the organism is identified
Avoid overlapping and ambiguous statements
Use observable characteristics only
Avoid negative statements unless otherwise
Creating a dichotomous key.mp4

4. Features used in leaves
Type of leaves
Leaf arrangement
Simple
Alternate
Opposite
Compound
Whorled
Type of venation
Parallel
Network/ Reticulate
Type of margin
Serrated
Entire

5. Types of leaf margins & Venation
LEAVES
LEAVES II

6. Types of compound leaves
Palmate
Pinnate
Bi-pinnate
Trifoliate
compound leaves.docx

7. Dichotomous key 1a) Leaf simple…………………..go to 2
b)Leaf compound……………….go to 4
2a)Leaf with parallel veins………Tradescantia
b)Leaf with network venation………go to 3
3a)Leaf margin entire……………Bougainvillea
b)Leaf margin serrated………Hibiscus
4a)Leaf pinnate………………………Nandi flame
b)Leaf bi-pinnate…………………Jacaranda

8. Thank You!