Plant Biology: Flower Parts, Inflorescence Types, and Flower Morphology

What are the four flower parts

1. Sepals and Calyx

2. Petals and corolla

3. Stamen

4. Pistil

Sepals/Calyx

What is the arrow pointing to?

Petal/corolla

What is the arrow pointing to?

Tepals (def)

What is it called when there is no clear distinction between sepals and petals?

Tepals

Stamen

What is the circle pointing to?

Pistil

what is the circle pointing to?

Anther

what is #3?

Filament

what is the bottom arrow pointing to?

stigma

style

#5

Ovary

#4

bracts

what are red parts called?

spathe

what type of leaf is this called?

involucure

Imbricate

inflorescence

What is the axis called from where flowering/fruiting branches are borne

peduncle

what is the stalk called of the inflorescence?

scape

What is the leafless peduncle called?

Pedicel

What is the top arrow pointing to?

pistils and stamen

perfect flowers must have

All four floural parts: Sepal, petals, stamen, pistil

A complete flower has

(Left image)

Draw a bisexual flower

(Middle image)

Draw a staminate flower

(Right image)

Draw a pistillate flower

Receptacle

What is the portion of the pedicel on which the flowers are borne? This can swell and become other structures

Incomplete flower

what type of flower is this? (complete or incomplete)

complete flower

what type of flower is this? (complete or incomplete)

superior (hypogynous)

what is it called when floral parts are fused/inserted below the ovary?

inferior (epigynous)

what is it called when the bases of other floral parts are fused to the ovary wall, inserted on or above the ovary?

terminal

flower/inforesecne borne on tip/end of shoot

axillary flower

flower/inforesecence borne in axils of leaf and shoots

monoecious plant

diecious plant

polygamodioecious

a few perfect flowers on a plant that is mostly diecious

cyme

compound cyme

verticillaster

what arrangement is this?

spike inflorescence

what flower arrangement is this

raceme

spadix

what is the bottom arrow pointing to?

catkin

spike; drops as a unit; pollinated by wind

panicle

corymb

Umbel

head inflorescence

disc (seeds)

which is the disc, seeds or petals?

ray (yellow area)

The petals are considered..

campanulate flower shape

what flower shape is this?

funnel flower shape

salveform flower shape

what flower shape is this?

tubular flower shape

what flower shape is this?

urceolate flower shape

what flower shape is this?

cruciform shape

what flower shape is this?

bilbaiate

what flower shape is this?

papilionaceous flower shape

what flower shape is this?

ligulate flower shape

what flower shape is this?

spurred flower shape

what flower shape is this?

stellate flower shape

what flower shape is this?

coronate flower shape

cauliflory

what flower shape is this?

semi double flower

single flower

double flower

pendulous

eye spot flower

actinomorphic

zygomorphic picture

capsule def

hard, dry, dehiscent fruit which splits along two or more seams. They remain closed until maturity, splitting to release seed.

syncarp picture

aggregate capsules

samara picture

samara defintion

winged fruit containing a single seed

Pod (legume) picture

follicle pod

drupe picture

drupe def

a fruit with one hard, bony stone at its center that contains one or more seeds

cone fruit

cone def

"female" structure, also called seed cones.

aril picture

aril

Single hard seed with red, fleshy, cup-like cover

multiple fruit picture

multiple fruit def

fruit develops from many individual flowers along a common inflorescence. As the fruit grows and develops, it fuses, forming a single structure

berry picture

berry def

fleshy fruit produced from a single ovary; most common fruit

leaf

what is this leaf part called? (whole leaf)

leaf blade

What is this leaf part called, not including the petiole

petiole

what part of the leaf is this?

stipule

what part of the leaf is this?

phyllotaxy

number of leaves or flowers borne per node

node def

place on a stem where buds are

node picture

phyllotaxy picture

alternate (picture)

what leaf arrangement is this?

one leaf borne per node; leaves spiral around the twig

alternate def

opposite picture

what type of leaf arrangement is this?

two leaves per node; leaves opposite on twig

opposite def

subopposite picture

what type of leaf arrangement is this?

pair of leaves close, but not at the same attachment on stem

subopposite def

whorled picture

what type of leaf arrangment is this?

three or more leaves per node

whorled def