HORT 202
GENERAL HORTICULTURE LABORATORY
Lab 2: Recognition of Plant Structures
INTRODUCTION

ROOTS

LEAF MORPHOLOGY LEAF TYPES  MODIFIED
LEAVES
 

STEM MORPHOLOGY 
 

MODIFIED STEMS
 

TYPICAL FLOWERS
 

FRUIT PARTS

     
CLASSIFICATION OF FRUIT
 
LEAF TYPES
Simple Leaf
blade as one unit; not divided into leaflets.
Type based on Venation (arrangement of veins)
simple-pinnate
Rubber Tree
simple-pinnate  Rubber Tree
Pinnate
feather-like, net venation with lateral veins extending from a central midrib. 
English Ivy
simple-palmate English Ivy
Palmate 
finger-like, net veination with veins diverging from 
the union of the petiole and the leaf blade. 
simple-parallel
Liriope
simple-parallel  Liriope
Parallel
principal veins parallel to axis of the leaf. 
 

Compound Leaf
        blade divided into leaflets. 
Type based on Arrangement of Leaflets
compound-pinnate
Rose
compound-pinnate  Rose
Pinnate
Leafles arising from along both sides of the rachis. 


compound-palmate
Scheffleracompound-palmate Schefflera

Palmate
Leaflets arising from the same location at the top of the petiole.

 

Return to | Hort 201 Lecture Home Page |202 Lab Home Page
The General Horticulture Laboratory 2 Homepage, was created by Trisha Blessington Haley and was updated by Michelle Meche.  Any comments or suggestions should be e-mailed to D.W. Reed at e-mail: dwreed@tamu.edu.  If you use any of the instructional material, please give credit to the source. Copyright  D.W. Reed, TAMU.