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Botany Lab Prep SEEDLESS VASCULAR PLANTS BIO 201 - BOTANY.

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Presentation on theme: "Botany Lab Prep SEEDLESS VASCULAR PLANTS BIO 201 - BOTANY."— Presentation transcript:

1 Botany Lab Prep SEEDLESS VASCULAR PLANTS BIO 201 - BOTANY

2 Taxonomy Division Lycophyta – club mosses Lycopodium and Selaginella * microphylls * one sporangium per sporophyll Division Sphenophyta – horsetails * microphylls (not photosynthetic) * sporangia clustered into strobili Division Polypodiophyta – ferns aka Pteridophyta * megaphylls * many sporangia per sporophyll

3 Lycophyta - Lycopodium True vascular tissue (root, stem, leaf) Leaves as microphylls

4 Lycopodium All microphylls alike Spores on microphylls or strobili

5 Lycophyta - Selaginella Anisphyllous microphylls Stobili present

6 Lycophyta – slide materail Rhizome x.s. Lycopodium strobilus l.s.

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9 Sporophyll (whole thing) Sporangium (rounded object) Spores (small, red)

10 Sphenophyta - horsetails

11 Polypodiophyta - ferns

12 Fern fronds Fiddlehead

13 Fern frond with sprangia

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15 Sorus types: Naked Marginal Umbrella

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