Terms to Know for Plant Diversity

An Illustrated Glossary


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Antheridium (plural = antheridia)

Antheridiophore of Marchantia

Archegonium

  • Of a Fern
  • Of Marchantia
  • Of Mnium (a moss)
  • View of Megagametophyte of Pine
  • Archegoniophore of Marchantia

    Anther

    Berry (A type of fruit that is completely fleshy.)

    Calyx (Term for the sepals of a flower) - view in snapdragon.

    Carpel (of a flower)

    Capsule (A type of fruit derived from a compound ovary that is dry and dehiscent at maturity.)

    Complete - A flower with all four basic parts, sepals, petals, stamens, and pistils is complete. Magnolia is complete.

    Dioecious - The condition of a flowering plant with imperfect flowers where the male and female flowers are borne on seperate plants.

    Willow

    Box Elder

    Drupe (A type of fruit that is fleshy or fibrous outside but with a hard part covering and protecting the seed inside..)

    Egg - In plants always derived by mitosis.

    Filament - is the part of the stamen below the anther.

    Follicle (A type of fruit derived from a simple ovary that is dry and dehiscent with one suture at maturity.)

    Gametophyte - Plant that produces gametes by mitosis.

    Grain (A type of fruit pruduced by grasses.)

    Heterosporous: the condition in vascular plants of bearing two types of spores - Microspores become male gametophytes, megaspores become female gametophytes. All seed plants are heterosporous.

    In Selaginella

    Homosporous: the condition in vascular plants of bearing only one type of spore. These spores bear bisexual gametophytes. Know homosporous examples of the lycophytes as "club mosses".

    Incomplete - A flower without all four basic parts, sepals, petals, stamens, and a pistil is incomplete. Anemone is incomplete.

    Imperfect Flower (flower not having both stamens and carpels)

    Legume

    Mega- (prefix denoting femaleness in heterosporous plants)

    Megagametophyte = female gametophyte in vascular plants

    Megasporangiate strobilus (female cone) in Pinus

    Megasporangium ( From Selaginella with Megasporophyll)

    The Nucellus of seed plants is a megasporangium - see nucellus

    Megaspore - Example from Selaginella

    Megaspore Mother Cell = Megasporocyte: A diploid cell that undergoes meiosis to produce a megaspore: in seed plants will be viewed in the nucellus of a young ovule.

    Megasporophyll

    Microphyll (xs of club moss leaf ): type of leaf in the Lycophyta having only one vein and is which is not associated with a leaf gap

    Micro- (prefix denoting maleness in heterosporous plants)

    Microgametophyte

    Microsporangium

    Microsporangiate strobilus of Pine

    Microspores

    Microsporophyll

    Monoecious - The condition of a flowering plant with imperfect flowers where the male and female flowers are borne on the same plant.

    Neck (top part of the archegonium through which the sperm travels)

    Nucellus = megasporangium in seed plants

    Nut

    Ovary

    Ovule

    Pistil (of a flower)

    Petals (of a flower)

    Pollen

    Receptacle (of a flower - Magnolia)

    Samara

    Sepals (of a flower)

    Sporangium (In plants always produces spore nuclei by meiosis).

    Spores - in plants are always produced by meiosis

    Sporophyte - Plant that produces gametes by mitosis

    Stamen

    Stigma (of a flower)

    Style (of a flower)

    Sterile bract of a seed scale complex of a conifer ovulate cone (Pinus)

     


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