Identification

Immune

Imperfect Flower

Impermeable

Inactivated

(as in ABA)

Incomplete Flower

Indehiscent

Independent

Indian Paintbrushes

Indoacetic Acid

Induce

Intercellular Spaces

These are the spaces between plant cells where the cell walls do not quite come together. Intercellular spaces are probably most easily observed in parenchyma tissue where the cells are roundish, leaving many small spaces between the cells.  In the spongy parenchyma of the leaf mesophyll, these intercellular spaces have the special name of substomatal chambers because the spaces are so large.

Inertia

Infect

Infectors

Inferior Ovary

Inferior ovaries have the flower parts (calyx, corolla, and androecium) attached above the ovary to the top of the ovary.  Epigynous and inferior ovary are synonymous terms.

                    DIAGRAMS:  Inferior Ovary

                          PHOTOS:  

Inhibition

Initial

Inner Integument

Inorganic Ions

Inorganic Minerals

Inorganic Fertilizers

Inorganic

(substances)

Insect Larvae

Insectivorous Plants

Insects

Integument

The integument is composed of two layers of cells and when mature, makes up the seed coat. It starts out as two layers of cells that grow out from the nucellus in the developing seed.

Interactions

Interbreed

Intercalary Growth

Intercalary growth is grow due to the activity of the intercalary meristem.  Intercalary meristem is meristem at the base of the internode in monocot stems (particularly in grass stems).

Intercalary Meristem

Intercalary meristem is meristem at the base of the internode in monocot stems (particularly grass stems).  Only the apical meristem is active.  If the tip of the stem is removed, the uppermost intact intercalary meristem becomes the apical meristem and starts intercalary growth.

                    DIAGRAM:  Intercalary Meristem

                          PHOTO:  

Intercellular Spaces

                    DIAGRAM:  Tissue Types

                          PHOTO:  Leaf Cross Section

Interdependent

Interfere

Interfascicular Cambium

Interfascicular cambium is vascular cambium derived from the de-differtiated parenchyma cells of the pith ray.  Thus, the parenchyma cells of the pith ray between two vascular bundles de-differentiates into meristem tissue.  This is called interfascicular cambium.

                    DIAGRAM:  Growth of Woody Stem

                          PHOTO:  

Intermediate Communities

Internal Signals

Internal Membranes

Internodes

The regions of the stem that are between the nodes.

                    DIAGRAM:  Woody Dicot Stem Morphology / Intercalary Meristem

                          PHOTO:  

Interspecific Competition

Interspersed

Intraspecific Competition

Interstitial Space

See intercellular space.

Involucre

Ion

Iridaceae

Iris

Irises are monocots that are in the family Iridaceae in the division Anthophyta.  They have inferior ovaries and regular flowers.  The genus Iris has all of its flower parts petaloid (texture and color of petals).  Irises produce a rhizome that becomes the perennial part of the plant.

                    DIAGRAM:  Iridaceae

                          PHOTO:  

Iron

Irregular Flower

Isodiametric

Isodiametric is a word that describes parenchyma cells.  "Iso" means same and diametric has to do with the dimensions of the cell.  Thus, isodiametric literally means "same dimensions." The dimensions of the cell are the length, width, and height.  Thus, it means that the length, width and height are approximately equal in each of the parenchyma cells.

Isogametes