Core Area: PLANT SCIENCE Unit Title: BASIC BOTANY Topic: PLANT PARTS PLANT PARTS
Roots Leaves Stems Fruit Flowers PLANT PARTS
Types of root systems Fleshy roots Taproot Fibrous roots
ROOT PARTS Root hairs Root cap Meristem
Leaf parts blade petiole midrib apex base margin stomata
LEAF PARTS
LEAF TYPES simple compound needle simple leaves
Leaf arrangements simple leaves
Leaves compound leaves
STEMS central support structure of the plant
STEM PARTS buds nodes internodes bark lenticels leaf scars scale scars
FRUIT TYPES Simple: derive from a single pistil Compound: form from several ovaries at one time Accessory: develop from parts other than the ovary
Simple fleshy fruits
Simple dry fruits
Compound fruits Multiple Aggregate separate flowers fused into a single structure many ovaries on a single flower
FLOWERS sepals petals stamens pistils Flowers usually contain four main parts:
FLOWER PARTS A “complete” flower has all four main parts. A “perfect” flower has stamens and a pistil.
FLOWER PARTS The stamens consist of: Anthers: contain the pollen Filaments: anther support The pistil is composed of : Stigma: structure at the top for collecting pollen Style: support structure below the stigma Ovary: enlarged part holding the ovules (eggs)
FLOWERS
PLANT CLASSIFICATIONS A monoecious plant has male and female flowers on the same plant A dioecious plant has male and female flowers on different plants a pistillate plant has only female parts A staminate plant has only male parts A hermaphroditic plant has a perfect flower Plants are classified by flower and type: