Download Nomenclature and Physiology of Flowers

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

Evolutionary history of plants wikipedia , lookup

Meristem wikipedia , lookup

Plant stress measurement wikipedia , lookup

Ornamental bulbous plant wikipedia , lookup

Plant reproduction wikipedia , lookup

Liliaceae wikipedia , lookup

Flowering plant wikipedia , lookup

Leaf wikipedia , lookup

Flower wikipedia , lookup

Plant evolutionary developmental biology wikipedia , lookup

Perovskia atriplicifolia wikipedia , lookup

Glossary of plant morphology wikipedia , lookup

Transcript
Nomenclature and
Anatomy of Flowers
Modified by Georgia Agriculture Education Curriculum Office
June 2002
August 2008
A complete flower has 4 parts
present
•
•
•
•
sepals
petals
stamens
pistils
August 2008
Sepal
• One of the outermost flower structures
• Commonly small, green, leaflike
structures
• When the sepals and petals appear the
same (such as lilies), they are called
tepals
• Collective word for sepals and petals is
called perianth
August 2008
Petals
• Usually conspicuously colored
• Collectively called the corolla
• Normally positioned between sepals and
inner flower parts
August 2008
Stamens
• Threadlike extensions that stand upright
from the perianth
• Male reproductive parts of a flower
• Consists of the anther and the filament
August 2008
Pistils
• Female reproductive parts of a flower
• Consists of the stigma, style, and ovary
August 2008
Types of Flower Structure
• Solitary
• Inflorescence
August 2008
Solitary Flowers
• Flowers that form singly on upright stalks
• Ex: tulips, roses, daffodils
August 2008
Inflorescence
• A flower that is made up of several florets
• Flowers have a branching pattern from the
main stem
• The main stalk of an inflorescence is a
peduncle, stalks that support the florets
are called pedicels
August 2008
Types of Inflorescence
Spike:
• Has an elongated
inflorescence on the
main stem.
• Ex: liatris, gladiolus
August 2008
Types of Inflorescence
Raceme:
• Similar to a spike
except florets aren’t
directly attached to
the stem
• Ex: delphinium
August 2008
Types of Inflorescence
Corymb:
• Has a flat top or
slightly convex shape
• Has main stem with
pedicels of unequal
length
• Ex: yarrow
August 2008
Types of Inflorescence
Cyme:
• Broad and flat topped
• Has divisions that
arise below a terminal
flower
• Ex: Bird of Paradise
August 2008
Types of Inflorescence
Umbel:
• Flower cluster that is
easily recognized
• Simple umbel has
single pedicelled
flowers all arising from
the top of the main
stem. Ex: agapanthus
• Compound umbel has
secondary umbels
arising from main stem.
Ex: Queen Anne’s
Lace
August 2008
Types of Inflorescence
Spadix:
• Thick flower spike surrounded by a
conspicuous bract.
• The spathe (bract) is often mistakenly
identified as the flower
• Ex: Anthurium
August 2008
Types of Inflorescence
Catkin:
• Slender, scaly-bracted inflorescence found
on woody plants
• Ex: Willow, alder, birch
August 2008
Types of Inflorescence
Head Flower:
• Short, dense cluster
of flowers in a flat
pattern
• Ex: sunflowers
August 2008
Leaf Parts
• Blade
• Petiole
• Stipules
August 2008
Leaf Types
• Simple leaf: leaf with a single blade
• Compound leaf: leaf with more than one
blade (leaflets)
August 2008
Leaf Vein Patterns
• Vein patterns in
leaf blades are
called venation
• Types
– parallel
– palmate
– pinnate
August 2008
Leaf Shapes
• Basic outline of the blade make up the
shape of the leaf
• Ex: oblong, linear, pelate, elliptic
August 2008
Leaf Margins
• Edge of the leaf blade is called a margin
• The appearance of the margin can affect
the texture of a design
• Ex: entire, undulate, serrate, lobed
August 2008
Assignment
• With a partner:
– Make a PowerPoint or Prezzi about the types
of flowers and leaves discussed
– Find at least 3 pictures/examples of each
August 2008