Week 4 notes vascular and non vascular plants PDF

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Lecture Notes, Greg Harris...

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Define: Vascular Having specialized transport vessels that function in moving fluid substances from one part of an organism to another. In plants it specifically refers to the xylem and phloem tissue Not all plants are vascular Vascular Tissue System A system of tissues (vascular bundles) that transports materials between the root and shoot systems of a plant The two types of vascular tissues are xylem and phloem Xylem transports water and dissolved minerals from the roots to the shoots Phloem transports sugars produced in leaves, to other areas of the plant where they are needed Non-vascular Plants Do not contain a vascular tissue system i.e., they do not have xylem or phloem Are smaller in size than vascular plants (usually 10 cm) Have true leaves, stems, and roots Examples: roses, ferns, Douglas fir, Horsetails Non-seeded, vascular plants Produce spores (not seeds) as reproductive structures Local Examples include ferns, clubmosses, and horsetails Fern Clubmoss Horsetail (you will not see any clubmosses at Campbell Valley) Ferns Typically have flattened leaves (called Fronds) that are divided into lobes Most have underground stems called rhizomes Spores produced on the underside of leaves Deer Fern Gymnosperms Are vascular and seeded

Bear “naked” seeds (not enclosed in fruit) Include cycads, Ginkgo, and conifers **You will only see conifers at Campbell Valley and most local forests** Conifers Have needle-like or scale-like leaves Seeds are produced in cones

Angiosperms Flowering plants Seeds are enclosed in a fruit Dull Oregon Grape Evergreen, low-lying stiff branched shrub with edible berries...