Anther Definition from Biology-online noun, plural: anthers (1) Pollen-bearing structure in the stamen (male organ) of the flower usually located on top of the filament of the stamen. (2)

Anther Daylilly Dictionay Daylilies.org A close-up photo and description.

apical meristem Encyclopedia.com Provides a brief definition.

Casparian strip Wikipedia.org What is the Casparian strip and what is its function? Visit the website for an image and article.

Casparian Strip By David Darling The Internet Encyclopedia of Science Visit the website for a brief definition.

Characteristics of Seeded Vascular Plants By Lynne Haley Rose, eHow Contributor Seed vascular plants consist of gymnosperms and angiosperms. Read more: What are the Characteristics of Seed Va

chloroplast The Columbia Encyclopedia, Sixth Edition 2008 Encyclopedia.com chloroplast , a complex, discrete green structure, or organelle, contained in the cytoplasm of plant cells. Chloroplas

Chloroplast By David Darling The Internet Encyclopedia of Science A brief encyclopedic article, with illustrations.

companion cells Dictionary of Botany All-text definition.

Cork cambium Wikipedia.org Article with illustration.

Day-neutral plant Dictionary.com A plant that flowers regardless of the length of the period of light it is exposed to Visit the web site to learn more.

Definition of Flower Filament By S. Johnson, eHow Contributor Has a nice photo, definition, and other information on the filament.

Definition of sporophyte Dave's Garden An article explaining two interchangeable phases of a plant's life cycle. Visit the website to learn more.

Endodermis Wikipedia.org In plants, it is a thin layer of parenchyma found in roots, just outside the vascular cylinder (the stele). Visit the website to learn more.

Endodermis Answers.com Brief definition and two articles from other sites.

Epidermis (botany) Wikipedia.org The epidermis is a single-layered group of cells that covers plants' leaves, flowers, roots and stems. It forms a boundary between the plant and the external wor

gymnosperm By David Darling gymnosperm A seed plant with seeds not enclosed in an ovary. Gymnosperms make up the smaller of the two main classes of seed-bearing plants, the other being the angi

Introduction to Meristem TutorVista.com Discusses the apical, lateral, and vascular meristems and what they do.

lateral meristem - Science Definition Yourdictionary.com Visit the web site for the definition.

Lenticels The Free Dictionary By Farlex Visit the web site for several definitions.

Liverwort Infoplease.com liverwort, any plant of the class Marchantiopsida. Mosses and liverworts together comprise the division Bryophyta, primitive green land plants (see moss; plant); some o

Long-day plants Newton Ask A Scientist Argonne National Laboratory Question: What are long-day plants? Answer: Long-day plants are those that require a long period of exposure to light

Meristems McGraw-Hill Higher Education Web site has a definition of meristems and two illustrations.

Microspores Definition from Biology-Online.org Visit the web site for the definition.

Moss Definition WordIQ.com Visit the website for photos and article.

Non-vascular plant Wikipedia.org Non-vascular plants is a general term for those plants without a vascular system (xylem and phloem). Visit the web site for the rest of the article.

Parts of Plants- Definition of Sepal Gardenguides.com Overview When examining the anatomy of a flower, you will notice that there is often a ring of small leaves around the outside of the flowe

Perennial plant Wikipedia.org A perennial plant or simply perennial (Latin per, "through", annus, "year") is a plant that lives for more than two years.[1] Visit the web site for photos and

Petal Wikipedia.org Article with several nice photographs; click to enlarge.

phloem By David Darling Description and image of phloem.

Photoperiodism By John W. Kimball Kimball's Biology Photoperiodism is an angiosperm's response to the annual changing length of night and day. Ever wondered how or why certain plants flower at

Photoperiodism PlantAnswers.com Good explanation of the effect of changing day length on plant flowering, bud formation and dormancy.

Phytochrome - Definition at YourDictionary.com Visit the web site for two definitions.

Plant Hairs Backyardnature.com When you begin looking closely at plants with your magnifying glass, you'll be amazed at how hairy many (but not all) plants are! For example, at the right you see

Plant Roots Dr. L.K. Thompson Biology Department Furman University The root system of a plant constantly provides the stems and leaves with water and dissolved minerals. In order to accompli

Plant Spines By Jim Conrad BackyardNature.net 'Some plants defend themselves from plant eaters with spines.' Visit the page for photos and to learn more.

Plant Structure: Vascular Tissues Prentice Hall BioCoach Activity Vascular tissue is composed of xylem and phloem, which function in the transport of water and dissolved substances. Use the

Primary growth: Definition from Answers.com Visit the web site for the definition.

S-Cool | Transport in Plants "Two main types of plant tissue are used in transport - xylem and phloem. Xylem transports water and minerals. Phloem transports organic molecules such as the products

secondary growth The Free Dictionary By Farlex Visit the web site for two definitions.

Seedless Vascular Plants Eventures.com What is it? Seedless vascular plants have vascular tissue, such as xylem and phloem. Unlike gymnosperms and angiosperms, seedless vascular plants do not p

Sieve tube element Wikipedia.org Article with image.

sieve tube element BotanyDictionaryOrg.com Brief all-text definition.

Stamen Wikipedia.org The stamen (plural stamina or stamens, from Latin stamen meaning "thread of the warp") is the male organ of a flower. Each stamen generally has a stalk called the filament (

Stele (biology) Wikipedia.org In a vascular plant, the stele is the central part of the root or stem containing the tissues derived from the procambium. Visit the website for the rest of the

The parts of a flower - pistil Department of Biodiversity & Conservation Biology University of Western Cape Excellent illustrations and explanation.

The Parts of a flower - stamen Department of Biodiversity & Conservation Biology University of Western Cape Excellent information, illustrations and photos.

Tracheid Cactus Art Biz Excellent illustration and brief article,

Tracheid Biology Online Definition A tubular cell in the xylem of vascular plants that functions primarily in the conduction of water and mineral salts collected by the roots to other parts of

Tree Rings - What they Are and Why they Vary Notes by J. Zimmerman, Ph.D. "How can you estimate how old a tree was? And can you estimate what kind of climate variations occurred during the life of

Vegetative reproduction The Free Dictionary By Farlex A form of asexual reproduction in plants......visit the website for the rest of the definition.

Vessel element Wikipedia.org A vessel element is one of the cell types found in xylem, the water conducting tissue of plants. Visit the website for images and the rest of the article.

Vessel element Biology Online One of the cell types of tracheary elements of xylem, generally regarded as the building block of vessels, and the major water-conducting tissue in plants. Visit

What are short day and long day plants? By: Carol Savonen Source: Ann VanDerZanden Oregon State University Botanists used to think that the length of daylight a plant was exposed to determined

What are tracheophytes? by Terri Mcdaniel Helium.com Tracheophytes have roots, stems and leaves. Trees, shrubs, grains, flowers, grasses etc. are considered tracheophytes. Visit the website

What is sporophyte generation? Answers.com Visit the website for an explanation.