Book contents
- The Living Planet
- The Living Planet
- Copyright page
- Contents
- Contributors
- Preface
- Acknowledgements
- One Introduction and the Evolution of Life on Earth
- Two Flowering Plants
- Three Bryophytes and Pteridophytes: Spore-Bearing Land Plants
- Four Terrestrial Mammals
- Five Marine Mammals: Exploited for Millennia, But Still Holding On
- Six How Birds Reveal the Scale of the Biodiversity Crisis
- Seven Reptiles
- Eight Amphibians
- Nine Freshwater Fishes: Threatened Species and Threatened Waters on a Global Scale
- Ten The Amazing Yet Threatened World of Marine Fishes
- Eleven Insects
- Twelve Marine Invertebrates
- Thirteen Non-Insect Terrestrial Arthropods
- Fourteen Terrestrial Invertebrates Other Than Arthropods and Molluscs
- Fifteen Non-Marine Molluscs
- Sixteen An Account of the Diversity and Conservation of Fungi and Their Close Relatives
- Seventeen Simple Life Forms
- Eighteen Assessing Species Conservation Status: The IUCN Red List and Green Status of Species
- Nineteen Problems with the World’s Ecosystems: The Future and Attempts to Mitigate Decline
- Twenty Conservation Methods and Successes
- Twenty One What Does the Future Hold for Our Planet and its Wildlife?
- Species Index
- Subject Index
- References
Two - Flowering Plants
Published online by Cambridge University Press: 13 April 2023
- The Living Planet
- The Living Planet
- Copyright page
- Contents
- Contributors
- Preface
- Acknowledgements
- One Introduction and the Evolution of Life on Earth
- Two Flowering Plants
- Three Bryophytes and Pteridophytes: Spore-Bearing Land Plants
- Four Terrestrial Mammals
- Five Marine Mammals: Exploited for Millennia, But Still Holding On
- Six How Birds Reveal the Scale of the Biodiversity Crisis
- Seven Reptiles
- Eight Amphibians
- Nine Freshwater Fishes: Threatened Species and Threatened Waters on a Global Scale
- Ten The Amazing Yet Threatened World of Marine Fishes
- Eleven Insects
- Twelve Marine Invertebrates
- Thirteen Non-Insect Terrestrial Arthropods
- Fourteen Terrestrial Invertebrates Other Than Arthropods and Molluscs
- Fifteen Non-Marine Molluscs
- Sixteen An Account of the Diversity and Conservation of Fungi and Their Close Relatives
- Seventeen Simple Life Forms
- Eighteen Assessing Species Conservation Status: The IUCN Red List and Green Status of Species
- Nineteen Problems with the World’s Ecosystems: The Future and Attempts to Mitigate Decline
- Twenty Conservation Methods and Successes
- Twenty One What Does the Future Hold for Our Planet and its Wildlife?
- Species Index
- Subject Index
- References
Summary
The importance of plant diversity to humankind is immense. Plants are primary producers defining and supporting ecosystems worldwide and providing a wide range of ecosystem goods and services. Vascular plants are species characterised by a well-developed system of specialised cells that transport water, minerals and photosynthetic products and provide structural support enabling plants to grow on land. Flowering plants, also known botanically as angiosperms, are by far the largest group of vascular plants. They are characterised by their distinctive reproductive structures, the flowers. Designed to be pollinated by wind, insects or other animals, all flowers have ovules, which become seeds after fertilisation, enclosed within an ovary. In contrast, the gymnosperms (see Box 2.1), which include conifers and cycads, have reproductive structures with naked seeds that are not enclosed. The other groups of vascular plants are ferns and fern allies which do not produce seeds.
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- The Living PlanetThe State of the World's Wildlife, pp. 18 - 36Publisher: Cambridge University PressPrint publication year: 2023