explain the following term : 1) incomplete flower, 2) staminate flower,3) pistillate flower 4) bisexual flower
Answers
Explanation:
Incomplete flower
If one or more sets of floral structures are missing, the flower is called incomplete flower.
E.g. American elm.
b) Staminate flower
A unisexual flower which contains only the stamens, i.e., male parts of a flower is called
male or staminate flower.
E.g. Eastern cottonwood.
(c) Pistillate flower
A flower which contains only the carpels, i.e., female parts of a flower is called female or
pistillate flower.
E.g. Date palm.
(d) Bisexual flower
A flower which contains both stamens and carpels is called bisexual or hermaphrodite flower.
E.g. Hibiscus.
(e) Inflorescence
Inflorescence is the mode of arrangement of flowers on the axis of the plant.
(f) Placenta
Tissue that attaches the ovule to the wall of the ovary is called placenta.
(e) Placentation
Placentation is the manner in which the ovules are arranged/attached to the wall of the ovary.
2. Distinguish between the following pairs
(a) Flower and inflorescence
Flower is a specialized shoot in which the leaves are modified into floral structures.
Inflorescence is the mode of arrangement of flowers on the axis of the plant.
(b) Petals and Petaloid
Petals are non-essential parts of a flower which help in protection of reproductive parts and
make the flower attractive for pollination.
Undifferentiated petals and sepals together form the perianth. When perianth is non-green, it
is called a petaloid.
(c) Petaloid and Sepaloid
When perianth is non-green, it is called a petaloid.
When perianth is green like the sepals, it is a sepaloid.
Answer:
An incomplete flower is defined as a flower missing any of its parts in its natural form, i. e. petals, sepals, stamens or pistils. A related term is "imperfect flower" indicating flowers that lack either stamens or pistils
A staminate flower is a male flower, bearing only stamens. A pistillate flower is female, bearing only pistils. A monoecious (pronounced moan-EE-shus) plant has separate male flowers and female flowers occurring on the same plant
The flowers which contain both male and female reproductive organs are known as full or bisexual flowers. They will self-pollinate themselves. Examples: Tulip, Sunflower and Lily.
A pistillate flower is female, bearing only pistils. A monoecious (pronounced moan-EE-shus) plant has separate male flowers and female flowers occurring on the same plant. Plants that are dioecious (die-EE-shus) have either staminate or pistillate flowers on separate plants.