The Flower

Style

________ is the tubular slender stalk that connects the stigma to the ovary.

Placenta

________: Tissue that attaches the ovule to the wall of the ovary.

threadlike filament

Each stamen consists of a(n) ________ and a bilobed anther.

long filament

Each stamen consists of a(n) ________ and an anther attached to its extremity.

young flower

The sepals protect the ________ bud and when green they also perform photosynthesis.

petals

The ________ are generally arranged in a single whorl but sometimes there may be a double whorl (Example: Poppy) or a spiral (Example: Water lily)

gynoecium

The ________ is also known as the pistil.

glandular papillae

The stigma is covered with hair or with ________.

Petunia

In androecium, stamens may be free (polyandrous) as in ________ or joined in different ways in single, double, or several groups.

inflorescence

The ________ is the mode of arrangement of flowers on the axis of the plum.

Sepals

________ are usually green but in some cases, they are brightly colored (called petaloid) as in Gul Mohur (flame of the forest) where they are red.

Polyadelphous

________: The filaments are united in several groups.

pollen grains

The ________ are generally powdery particles of different shapes and sizes.

Bracts

________ may be green like ordinary leaves or at times they are colored.

Stigma

________ is the terminal knob- like part, it may be divided into two or more lobes and may assume a feathery appearance.

floral structures

A complete (or perfect) flower is one that contains all four ________.

carpel

Each ________ consists of a basal ovary, a middle style, and an uppermost stigma.

perianth

When the ________ is green like the sepals, it is described as a sepaloid perianth.

placenta

The cushion or swollen region in the ovary attaching the ovules to the wall of the ovary is called the ________.

First whorl

green sepals (collectively called calyx)

Second whorl

large brightly colored petals (collectively called corolla)

Third whorl (male parts) (o = symbol for male)

long thread-like processes somewhat projecting out and each usually ending in a bilobed tip

Example

papaya and palm

Monadelphous

Stamens are united in one group by their filaments

Example

china rose (staminal tube), cotton

Diadelphous

The filaments are united in two bundles

Example

pea (out of ten, nine stamens form a staminal tube while one is free)

Polyadelphous

The filaments are united in several groups

Example

Bombax

Placenta

Tissue that attaches the ovule to the wall of the ovary