GENERAL BOTANY Lecture 4 - 5 Flower parts usually come in...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
GENERAL BOTANY Lecture 4 - I. Plant identification A. Phylogenic (natural) system 1. Kingdom 2. Phylum 3. Class 4. Order 5. Family 6. Genus 7. Species Example: Redbud - Plantae (plants), Anthophyta / Magnoliophyta (flowering), Magnoliopsida (dicots), Rosales (roses), Leguminosae (legumes), Cercis, canadensis II. Special features of angiosperms - monocots and dicots A. Dicotyledonae (Magnoliopsida) 1. "Two cotyledons in seed" 2. Broadleaf plants 3. Netlike leaf veins - xylem and phloem 4. Two leaf parts (sometimes three) a) Blade (leaf) b) Petiole - pelate (attaches to middle) and sessile (direct attachment) 1) Extends the leaf 2) Allows leaf to move c) Stipule - at base of petiole
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 5. Flower parts usually come in units of four or five 6. Taproot system with one or more primary roots from which secondary roots develop B. Monocotyledonae (Liliopsida) 1. "One cotyledon in seed" 2. Long, grasslike leaves 3. Parallel leaf veins 4. Two leaf parts (sometimes up to four) a) Blade b) sheath - covers stem c) ligule - keeps water from between stem and sheath d) auricle - forms a collar at base of blade 5. Flower parts usually come in units of three 6. Grass flowers (among monocots) are often incomplete or inconspicuous a) Lacking or not showing sepals or petals 7. Fibrous root systems...
View Full Document

This note was uploaded on 01/30/2012 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

Ask a homework question - tutors are online