Tuesday, September 28, 2010

5.5.3 Distinguish between the following phyla of plants, with simple external recognition features

BRYOPHYTA = mosses and liverworts

- small
- dont actually have roots, stems or leaves, but what they do have looks similar
- their leaf-like structures are often arranged in a spiral
- live in clusters
- act like sponges holding water

FILICINOPHYTA = ferns

- have leaves
- new leaves unroll ... whoosh
- underground creeping stem

CONIFEROPHYTA = conifer

- woody plants, single wooden trunk, side branches
- leaves are long, thin needles
- leaves are usually dark green
- produce seeds found in cones

ANGIOSPERMOPHYTA = flowering plants

- have flowers, might be small though
- seeds are in ovaries, which become fruit
- leaves usually have blade and stalk, with veins

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