Botany Lab Help

BIO 2500 Principles of Botany - Kean University, Union, NJ


updated August 15, 2003
About this site Links Related Information Assignment

Reminder: Bring one flower and one fruit with you to the Angiosperm lab. Where to collect a flower and fruit?

Angiosperm Life Cycle - links to labeled images The Flowering Plants - Kean. Univ Images - Missouri State
Flowering Plant Reproduction / meiosis  Monocot vs Dicot  Characteristics
Basal Angiosperms  Anthophyta: Life History and Ecology  Anthophyta links to photos
Anthophyta - diagrams flower structure  Anthophyta: Systematics Uwinnipeg - links to labs
Flowering plant reproduction Reproductive characters Composite flower structure 
Photos - Anthophyta 
Reproductive Characters Illustrated guide to basic floral terms Reproductive Characters II Flower whorls - illustrate angio repro
Parts of a Flower Illustrated glossary Flower structure Diagram of flower - labels
Flowers Profiles alphabetical 
with images
Diagram - flower / fruit
Tomato flowers  Pyrus malus flower diagram
Dicot flower bud x.s Dicot flower bud - x.s.  Ovary position
Snapdragon - Kean Univ  ovary - x.s. fresh Snapdragon flower Floral Diagram + Many Detailed images of flower at various ages 
directory of images  dissected flower flower
Gladiolus- Kean Univ. Gladiolus - Infloresence Gladiolus Flower
Gladiolus - Google images  
Liliaceae - flower with labels Lily infloresence  flowers + buds flower - dissection images
Lily bud x.s.  Lily - anthers x.s.-labels  images - directory of images and questions
Lily bud - meiosis 
lily links - Kean Univ. Lilium -  sections  reproductive structures links - images
Lily flower - anthers labeled Lilium - Google images
Lilium - U. Wisc - all stages Lily Floral diagram ?Lily x.s. bud - labels
Lilium androecium  Lily Meiosis / Microsporogenesis - stages with labels Meiosis - lily microsporogenesis
anther  Lilium - anthers - labels
Lily anther - meiosis I
Prophase I - early
Prophase I
Metaphase I -
Anaphase I -
Telophase I -
End first division - interphase interkinesis
Lily anther - meiosis II 
meiosis II

Prophase II -
Metaphase II -
Anaphase II -
Telophase II -
Tetrads - microspores

Lily anther tetrads of microspores
?Lily - tetrads
pollen in anther
pollen - mature
pollen grain - large
Lily Pollen grains - labels
Pollen - assorted 
Pollen - Dandelion SEM
 anther - dehiscing
Pollination  links to pollinating agents Pollen grains on stigma  Pollen tubes
Pollen tubes
Pollination - Google images  insect pollination
Types of pollination
Types of pollination
Pollination mechanisms
Pollination mechanisms II
Megasporogenesis lily
beautiful images as sequence
Lily x.s. ovary with young ovules
Lily x.s. ovary   Lilium ovule - labels
Lily Ovule -labels ovule - megasporocyte  second division 

first 4 nucleate
second 4 nucleate
Lily embryo sac- 4 nucleate
Lily - 4 nucleate
Lily - nuclei dividing
final division
Lily Megagametophyte - labels
Lily - mature embryo sac
Lily - mature embryo sac
  Lily double fertilization, labels  Lily - labels
Double fertilization - Google images
Capsella - plant + seed pods 
Capsella - flower + embryogenesis,
Capsella - plant

Capsella - links Uwisc.
Stages -   large

Capsella - URI
Capsella embryo developing
Capsella embryo globular
Capsella embryo heart
Capsella embryo torpedo
Capsella embryo (mature seed)
Capsella 1 embryo labels - nice image
Capsella 2 embryo labels
Capsella 3 embryo labels
Capsella 4 embryo labels

Capsella -.seed  labels scroll down
The seed - Hawaii - follow links  seed

 lily embryo    lily embryo  lily embryo  lily seed   lily seed 
Corn - kernel whole 
Corn - Kernel - diagram
Corn "seed" l.s. grain, labels
Corn - section of fresh + labels
Corn kernel - diagram, ls. labels
Corn - Kean Univ.  Corn - l.s. kernel Corn seedlings 
Bean - Kean Univ. Bean seed  hilum  Bean seed and seedling  - 
Bean - early development - U. Wisc. Bean seed - labels Bean seedlings
Seed development Bean fruit - x.s.  Bush bean - plant
*Bean seed / fruit - x.s 
Bean - development diagram 
Fruits Classification Fruits and Seeds  fruit key
Fruits and seeds Fruits and seeds  Fruit types
Fruits -links U. Wisc. Fruits Fruits
Fruit key fruits- Google images Fruit identification
PEA  Pea Flowers Pea Flowers to fruit drawing + photo
. Pea - Pisum sativum Pea  pod
. Snow Pea Pods  .
BEAN bean - labels legumes
TOMATO Flowers and Fruits  Fruit anatomy tomato -
fruit anatomy - tomato
  Tomato Fruit development   Tomato - x.s.  tomato
- cut fruit    fruit  - seeds
APPLE diagrams  bee pollinating flower   apple flower - l.s.
   branch with flowers Apple - Branch with fruit  young Apple fruit (stem end) 
  Apple fruit l.s. apple -fruit x.s.   apple - labels 
Other Fruits Citrus citrus - x.s.
Pineapple - fruit - plant - images Pineapple Fruit
Osage orange   Osage orange - x.s. Tropical fruits
Asexual  Kalenchoe

Related Information

Morphology of Anthophyta  Poisonous Plant Database Poisonous Plants Nova Scotia
World Wide Flowering Plant Family Identification  Flowering Plant Families A Tour Classification of Flowering Plants 
Virtual Foliage Taxonomy The Catalog Botanical Illustrations
Botany resources teaching projects Flowering Plant Family Access U. Hawaii
Vascular Plant Image Gallery Families A-D  Plant Taxonomy U.Maryland Roots of Botanical names
The Great Plant Escape Interactive Quiz - simple  

Lab Exercise 15

BIO 2500 Principles of Botany - Kean University, Union, NJ


I selected links that provide images of Angiosperms similar to those observed in laboratory. Review the links as you prepare for lab and as you study for your lab exam.

Reminder: Bring one flower and one fruit with you to the Angiosperm lab. Where to collect a flower and fruit?

Where to collect a flower and fruit

Before you decide to collect a flower and a fruit, read the lab manual so that you will understand what you will be asked to do with the samples you provide. Among other things, you areasked to determine the kinds and numbers of flower parts present and to classify the type of fruit . These tasks will be easiest if you select a representative flower, one with flower parts (sepals, petals, stamens, pistils) that are easy to recognize. Chrysanthemums, daisys, asters and some other flowers commonly sold, while showy, may be difficult to interpret. Similarly, fruits that have seeds enclosed in chambers may be easy to interpret, while acorns, grains and other fruits may be more challenging.

Weather permitting, I usually take a walk around campus just prior to lab to collect flowers and fruits from trees, bushes and herbs. Often I collect apples from the crab apple tree along Morris ave and nearby I may locate a few flowers of Forsythia and perhaps some dandelion flowers.

Prepare in advance by looking at the examples on the website, illustrations in your text, and illustrations in other reference books.


         Assignment for Laboratory Exercise 15 - Flowering Plants

1.  Collect and bring to laboratory one flower and one fruit
     (they may be from the same or from different plants). Collect
     examples that will be easy to identify and work with in
     class (see the assignment on pages 15.2 and 15.3). Display your
     specimens at your desk.

2.   Display your semester collection of plants, plant parts or
     plant products together with the evaluation sheet (p. xv) and
     progress report (p. xiii).

3.   Examine the semester collections displayed by your

4.  Examine the materials on display. These include living and
     preserved specimens representing diversity and reproductive
     patterns of Flowering Plants.

5.  Learn the major characteristics of Flowering Plants and of
     the two Classes: Monocots and Dicots.

6   Dissect fresh flowers of Snapdragon and Gladiolus and
     identify their parts. Make a floral diagram of each (see
     figure 15.1d).

7.  Work as a group and set up a display representing
     reproduction of Flowering Plants. Each student is responsible for
     finding and displaying one or two specimens demonstrating flower
     structure (1, 2, 3), meiosis and microsporogenesis (4, 5, 6), pollen
     (7,8), megasporogenesis (9,10,11,12), megagametophyte
     development (13),  double fertilization (14), embryo (15, 16) seed
     (17) and fruit (18) development.

1 Flower Bud  l.s.
2 Flower Bud t.s.
3 Young Anther
4 Meiosis 1st Division
5 Meiosis 2nd Division
6 Tetrad of Microspores
7 Pollen Grain 2-cell stage
8 Pollen Tube with sperm
9 Ovary with 2 Young Ovules
10 Ovule with Megasporocyte
11 Meiosis
12 First 4-Nucleate
13 Mature Embryo Sac
14 Double Fertilization
15 Lily Embryo
16 Capsella Young Embryo
17 Capsella Seed
18 Fruit

8.   Label and color Figures 15.2. 15.3, 15.4, 15.5, 15.8  and  15.12).

9.   Prepare for the lab practicum.