Flowering Plants BIOL 1407

Flowering Plants Seed plants Ovules are enclosed in an ovary Ovary  fruit around seeds Photo Credit: BIOL 1407 student, Austin Nature Center field trip, 2006

Flowers Reproductive Structures –Attract animal pollinators Photo Credit: Pam Wolfe, Georgetown River Walk 2008

Flowers Female structures = megasporophylls Male structures = microsporophylls Photo Credit: Pam Wolfe, Zilker Botanical Gardens 2008

Flowers Reproductive structures surrounded by modified leaves Photo Credit: Pam Wolfe, Zilker Botanical Gardens 2008

Photo Credit: ACC Field Biology Student, 2005

Photo Credit: Courtesy of Luc

Photo Credit: ACC Field Biology Student, 2005

Flower Pollination Animal Pollinators –Insects –Bats –Birds –Other mammals (sugar gliders, mouse lemurs) Wind Pollination Water Pollination Photo Credit: Courtesy of Luc

Photo Credit: Butterfly – Courtesy of Luc Stapelia – Courtesy of

Fruits Mature ovary Ovary forms wall around seeds Photo Credit: Courtesy of Luc

Seed Dispersal –Animal dispersal –Wind dispersal –Water dispersal –Mechanical dispersal Photo Credit: Mexican buckeye fruit, BIOL 1407 Student, Austin Nature Center field trip 2006

Photo Credit: Courtesy of Luc

Photo Credit: Blue Tit Photo – Courtesy of Luc

Pollination Pollen germination Pollen tube growth Double fertilization

Angiosperm Seeds Zygote  Embryo Triploid cell  Endosperm (food supply) Integuments  Seed coat

Corn Seeds

Bean Seeds Question: Where is the endosperm?

Cotyledon stays within kernel  nutrients from endosperm to seedling

Evolution

Basal Angiosperms

Monocots

Magnoliids

Eudicots Photo Credits: ACC Field Biology Student, 2005

The End Unless otherwise specified, all images in this presentation came from: Campbell, et al Biology, 8 th ed. Pearson Benjamin Cummings.