PLACENTATION : PLACENTATION By Mark Joseph O. Lagao Flowers : Flowers What is a Placenta? : What is a Placenta? Placentation : Placentation Types of Placentation : Types of Placentation Free-cental Placentation
Parietal Placentation Remember: : Remember: FABMAP
FABMAP F: Free Central : F: Free Central Placenta is in central column within a non-sectioned ovary.
Compound carpel A: Apical : A: Apical Placenta is at the apex (top) of the ovary.
Simple or compound carpel B: Basal : B: Basal The placenta is at the base (bottom) of the ovary.
Simple or compound carpel. M: Marginal : M: Marginal There is only one elongated placenta on one side of the ovary.
This is conspicuous in legumes.
Simple carpel. A: Axile : A: Axile The ovary is sectioned by radial spokes with placentas in separate locules.
Compound carpel. P: Parietal : P: Parietal The placentas are in the ovary wall within a non-sectioned ovary.
Compound carpel. FABMAP : FABMAP Questions/Clarifications : Questions/Clarifications Evaluation : Evaluation Bring out ¼ sheet of paper.
Write your name on the upper left hand corner.
And date on the upper right hand corner.
Number your paper from 1 till 10. PART 1: : PART 1: Instruction: Identify what type of placentation is shown by the following 7 images: PART 2: : PART 2: Definiton:
8. Botanically define placenta.
9. Define Placentation.
10. In what branch of Biology is the identification of placentation (in plants) important? Slide 27: END of test.
Review your answers for 30 seconds. Homework: : Homework: On a ¼ yellow paper, name one specimens for each of the types of placentation. Include scientific name or at least the generic name. To be passed next meeting (March 12, 2010).
Read on Fruit and fruit formation. Thank You! : Thank You! Dr. Praxedes F. Rosuman
Julius Wizard Sison