Pistil- female reproductive partof the flowerIncludes:1. Stigma – sticky top surfacewhere the pollen sticks2. Style – long tube thatconnects the stigma and the ovary
3.Ovary – houses the ovules thatcontain the embryo. The ovarydevelops into the fruit that providesnutrients for the developingembryo.4. Ovule – contains the egg celland when fertilized contains thedeveloping embryo. The ovulebecomes the seed.
Stamen – male reproductive part ofthe flowerIncludes:1. Anther – where one finds thepollen grains2. Pollen – contain the sperm nuclei3. Filament – the long stalk thatattaches the anther to the receptacle
Other important parts of a flower:1.Receptacle – the base of theflower2. Sepals – small green leaves thathouse the developing bud (flower).Collectively called the calyx.
Other important parts:3. Pedicel – the end of the stemwhere the flower is found4. Petals – colorful structuressurround the reproductive parts offlower and attract insects.Collectively called corolla.
Complete and Incomplete FlowersComplete flowers A flower that has all of thenormal flower parts, namely, thesepals, petals, stamens, andpistil.
Complete and Incomplete FlowersIncomplete flowersAn incomplete flower is missingone of the four major parts of theflower, the stamen, pistil, petals, orsepals. Examples: the oak family, thebirch family, and the walnut family
Perfect vs. Imperfect FlowersImperfect flowers lack eitherstamens or pistils, and may or maynot have sepals or petals.
Types of Imperfect Flowers1. Pistillate FlowerIs a female flowerHave a functional pistil, buteither have no stamen at all, orhave stamens with anthers thatare incapable of producingpollen. example: corn ears
Types of Imperfect Flowers2. Staminate Flower Is a male flower Have functional stamenscapable of producing pollen, buteither have no ovary at all, or anovary which is not fertile.Example: corn tassels
Types of Imperfect Plants1. Monoecious -Said of a plant species in whichall individuals bear both staminateand pistillate flowers,
Types of Imperfect Plants1. Monoecious -For example:Oaks—with maleflowers in catkins,producingwind-borne pollen,
Types of Imperfect Plants1. Monoecious -For example:Oaks—with male flowers in catkins, producing wind-borne pollen,and female flowerson the stems,producingacorns.
Types of Imperfect Plants1. Monoecious -Ex. Also corn – tassel = male and ear = female but on same plant
Types of Imperfect Plants2. Dioecious -said of a plant specieswhich has some individualswhich bear only staminateflowers,and some which bear onlypistillate flowers,
Types of Imperfect Plants2. Dioecious -and there are no perfect flowers.These are the species that arecommonly referred to as havingmale and female plants.
Flower ArrangementSome have a single flower on eachstalk like a rose.
Flower ArrangementMost are inflorescence whichhave clusters of flowers.