Lab 2 Glossary

Question 1

Abscission

Answer 1

the dropping off of leaves, flowers, fruits and other plant parts, usually following the formation of an abscission zone.

Question 2

Blade

Answer 2

Can be used interchangeably for the lamina of a leaf, or the broad flat part of an algal thallus.

Question 3

Compound leaf

Answer 3

A leaf whose blade is devided into several distinct leaflets.

Question 4

Concealed buds

Answer 4

Accessory axillary buds which remain dormant unless the exposed axillary bud is destroyed.

Question 5

Cotyledon

Answer 5

Seed leaf; generally stores food in dicotyledons and absorbs food in monocots.

Question 6

Deciduous

Answer 6

Shedding leaves at a certain season

Question 7

Dicotyledon

Answer 7

plants with 2 cotyledons, net veined leaves, and flower parts in multiples of four or five

Question 8

Dorsal

Answer 8

the surface facing away from the stem to which the leaf or other structure is attatched

Question 9

Epiphyte

Answer 9

An organism that grows on a plant but is not parasitic.

Question 10

Eustele

Answer 10

Ring of discrete vascular bundles typical of dicotyledons and gymnosperms

Question 11

Halophyte

Answer 11

plants that grow in saline environments

Question 12

Internode

Answer 12

region of stem between two successive nodes

Question 13

Leaf gap

Answer 13

Region of parenchyma tissuein the primary vascular cylinder above the point of departure of a leaf trace.

Question 14

Leaf trace

Answer 14

The strand of vasvular tissue linking the vascular bundle in the stem with the bundle in the base of the leaf.

Question 15

Meristem

Answer 15

region where new cells are formed.

Question 16

Monocotyedon

Answer 16

a plant whose embryo has one cotyledon, parrallel leaf veins and flower parts in multiples of 3

Question 17

node

Answer 17

part of the stem where one or more leaves are attatched

Question 18

Petiole

Answer 18

the stalk by which a leaf is attatched

Question 19

Rhizome

Answer 19

An underground horizontal stem

Question 20

Stolon

Answer 20

An above ground horizontal stem

Question 21

sessile

Answer 21

Attached directly by the base - referring to a leaf lacking a petiole or a flower or fruit lacking a pedicel

Question 22

Simple leaf

Answer 22

a leaf with an undivided blade, as opposed to a compound leaf.

Question 23

Ventral

Answer 23

the surface facing the stem to which the leaf or other structure is attached (top surface of leaf)