Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Evolutionary history of plants wikipedia , lookup
Plant stress measurement wikipedia , lookup
Ornamental bulbous plant wikipedia , lookup
Plant reproduction wikipedia , lookup
Flowering plant wikipedia , lookup
Plant evolutionary developmental biology wikipedia , lookup
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