Plant Phyla Project Aubrey Irwin Bryophyta • Common Name: Mosses • Major Group: Seedless Nonvascular • Characteristics: Grow close to ground, absorb water and nutrients, rhizoids. • Habitat: Sea level as well as the highest altitudes occupied by plants. Deserts or submerged in water. Most occupy moist, shaded habitats. • Reproduction: Rely on free-standing water • Examples: Polytrichum and Sphagnum • * Mosses are the most primitive living land plants. Bryophyta Hepatophyta • Common Name: Liverworts • Major Group: Seedless Nonvascular • Characteristics: Must grow close to ground to absorb water and nutrients directly. Free-standing water to reproduce. • Habitat: Distributed globally, many tolerate direct sunlight, and periods of total desiccation. • Reproduction: Sexually, Asexually, Spores. • Examples: Pallavicinia lyellii, Porella platyphylla, Pellia epiphylla • * Simplest of all living plants. Hepatophyta Anthocerophyta • Common Name: Hornworts • Major Group: Seedless Nonvascular • Characteristics: Grow close to ground to absorb water and nutrients • Habitat: Tropical forests, along stream sides, disturbed fields around the world. • Reproduction: Spores, need free standing water to reproduce • Examples: Dendroceros, notothyladacae, anthocerotaceae • * Many Hornworts develop internal mucilage filled cavities. These cavities are invaded by photosynthetic cyanobacteria. It is this bacteria that gives Hornworts their distinctive bluegreen color. Anthocerophyta Lycophyta • Common Name: Club Mosses • Major Group: Seedless vascular • Characteristics: Depend on water for reproduction but a vascular system allows them to grow up off the ground. • Habitat: Moist areas, tropics • Reproduction: Water lets sperm swim to fertilize eggs • Examples: Equisetum Palustre, Strobili • *The temperate zone plants (small, trailing, evergreen) were once collected in quantity to place a crudely woven evergreen “blanket” on graves in cemeteries. Lycophyta Pterophyta • Common Name: Ferns • Major Group: Seedless Vascular • Characteristics: Vascular system allows them to grow up off the ground, no true roots • Habitat: Tropics and subtropics, wetland areas, and along rivers • Reproduction: Needs water. • Examples: Whisk Ferns, Boston Ferns, Horsetails • * Largest group of living seedless vascular plants and most familiar. Pterophyta Cycadophyta • • • • • Common Name: Cycads Major Group: Cone-bearing seed plant Characteristics: Habitat: Tropical Areas in Americas, Asia, Africa, and Australia Reproduction: Cycads are gymnosperms ( naked seeded) meaning that unfertilized seeds (ovulues) are open to air to be directly fertilized by pollination. • Examples: • * Provided food for dinosaurs Cycadophyta Ginkophyta • Common Name: Ginkgos • Major Group: • Characteristics: seeds are not enclosed in fruit, meat of nut is edible, fleshy covering smells like rotten butter and is irritating to skin • Habitat: Where it occurs in the wild it is found infrequently in deciduous forests and valleys on acidic loesss • Reproduction: Release pollen • Example: Ginkgo Biloba • * Native to China, living fossil, people take supplements for depression, oldest species of seed plants Ginkophyta Coniferophyta • Common Name: Conifers • Major Group: Cone-bearing seed plants • Characteristics: Seeds are not enclosed in fruit, well adapted to high altitudes, sloping hillsides, and poor soil • Habitat: Mountainous Regions • Reproduction: • Example: Ponderosa Pine • * Most diverse and common gymnosperms alive today. • * Provide timber for paper. Coniferophyta Anthophyta • Common Name: Flowering Plants • Major Groups: Flowering seed plants • Characteristics: Angio sperm, seed plants, seed enclosed in fruits • Habitat: Everywhere • Reproduction: Gametes and fertilized eggs • Examples: Marigolds, Daisy, Sunflowers * The largest division of photosynthetic organisms - outnumbering all of the others put together. * The dominant plants in most terrestrial ecosystems, (except boreal forest). * Most of our crop and ornamental plants Anthophyta