Life Lab* Series Vascular/Non-Vascular Plants th 5 Grade Created and Presented by: Paul Hansen, Curator Catherine Hansen, Garden Manager/Horticulturist Escorts: Towns/Union County Master Gardeners Hiawassee Garden Club Enotah Garden Club *www.lifelab.org/2013/12/content-standards/ All known plants on Earth are classified as Vascular or Non-Vascular 5th Grade ‘Life Lab’ in Hamilton Gardens October 18th, 2013 5th Grade Class meets in Pavilion Speakers (8:30 to 8:40) (Paul Hansen/ Curator) Garden Introduction, Trail Safety and Collection Bag Rules and Regulations (Catherine Hansen/ Garden Manager) Briefing on Vascular and Non-Vascular plants to look for in the Hamilton Gardens Field Trip Time: 70 minutes total (5) 10 minute stations with 5 minutes allotted for foot travel between each station. Estimated time of completion: 9:50 am Single blast on Air Horn – begin activity at Learning Station Double blast on Air Horn – begin walking to next Learning Station Station #1 (Donna Cates/Master Gardener) Gymnosperms: (Vascular) (Seeds on the ‘Outside’) So you've got a vascular system. What comes next? Seeds! Seeds let you send your offspring out into the world. Seeds provide a protective coat so that the embryo plant can develop when it finds a nice piece of soil. But remember this: gymnosperms have not developed the ability to make flowers. Flowers are an evolutionary advancement after seeds. So if you have a vascular system, seeds, and no flowers, what are you? A gymnosperm! Seeds are a protective structure that lets a plant embryo survive for long periods of time before it germinates. Seeds have food sources pre-packaged for plant embryos to provide for an embryo's needs in early growth. Seeds let plants spread their embryos over large areas. Some are even so lightweight that they are carried across the planet by strong winds. Seeds are an advantage if you want to be a plant that can grow anywhere. It is believed that the first plants on our planet were gymnosperm. Example: Pine Cone (Conifers) Strawberry IS NOT a gymnosperm! Although it may appear that the strawberry wears its seed on the outside of its fruit – the brown spots (or “pips”) that you see are not seed! They are actually the fruit of the plant. Not too tasty! Escorts: Have your group look for and collect 1 pine cone per each child in route to Station #2 Station #2 (Catherine Hansen/Garden Manager) Non -Vascular Plant: Non-vascular plants do not have tubes running through them. Water soaks into non-vascular plants and then moves from one cell to another. This is how they pass food through the plant. Non-vascular plants must live in moist areas or in water. They do not grow to be very tall. Moss the most common type of non-vascular plant. Non-vascular plants do not have roots, leaves, or stems. Example: Moss, Lichen, Fungi (Mushroom) Our 5th graders will be studying the Bryophyta non-vascular family (mosses) on this field trip. Escorts: Have your group look for and collect a small piece of Moss, Mushroom or Lichen in route to Station #3 Station #3 (Elaine Delcuze/Naturalist, Enotah Garden Club) Non-Seeded Plants: (Vascular) The common Fern is a Vascular Plant. It is also the most studied Non-Seeded, Vascular Plant. It is commonly thought that the black or brown dots (“sori”) found on the underside of the fern frond are the seed that allow this plant to reproduce; this is not true. The sori are spores that must be released to fertilize the Rhizome hidden just below the surface of the fern in order to reproduce. This plant is not started from seed but from a rhizome formed in the soil. This plant bares no fruit and does not flower. Example: Fern Our 5th graders will be studying the Fern as the only vascular/ non-seeded on this field trip. Escorts: Have your groups collect a SINGLE Fern frond on their way to Station #4 Station #4 (Maggie Oliver/Master Gardener) Angiosperm: (Vascular) (Seeded Plants) (Seeds on the ‘Inside’) The term "angiosperm" derives from two Greek words: angeion, meaning "vessel," and sperma, meaning "seed." The angiosperms are those plants whose seeds develop within a surrounding layer of plant tissue, called the carpel, with seeds attached around the margins. This arrangement is easily seen by slicing into a tomato, for example. Collectively, carpels together with the style and stigma are termed the ovary, and these plus associated structures develop into the mature fruit. The enclosed seeds and the presence of carpels distinguish angiosperms from their closest living relatives, the gymnosperms. Example: Sunflower (any flowering plant), fruit, vegetables, etc. Escorts: Have the children collect a flowering bloom on their way to Station # 5 Station #5 Vascular Plants: Vascular plants have tubes running through them. These tubes carry water and nutrients through the plant. The tubes are in the leaves, stems, and roots. Some types of vascular plants are trees, grass, and ferns. Any plant that has flowers is a vascular plant. Any plant that has cones is a vascular plant. Vascular plants reproduce with seeds. Escorts: Have the children collect three different types of leaves