Plant Lecture 3 09

Plant Lecture 3 09 - Lecture 2/4 (1): Vascular Plants I •...

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Unformatted text preview: Lecture 2/4 (1): Vascular Plants I • Limitations in non-vascular plants • Life cycle overview • Vascular plant synapomorphies – Sporophyte Dominant life cycle • example: Fern Life Cycle – Vascular Tissue • xylem • phloem • Early clades of vascular plants – Rhyniophytes – Lycophytes (club mosses, etc) – Pteridophytes (Ferns and relatives) Liverwort Hornwort sporophyte gametophyte Moss sporophyte gametophyte • Features common to the liverworts, hornworts, and mosses are best thought of as: 1. Synapomorphies that distinguish these groups from the rest of the plant tree of life 2. Homoplasies evolved separately in each of the three lineages 3. Being present in the ancestor of all existing land plants 4. None of the above Lecture 2/4 (1): Vascular Plants I • Limitations in non-vascular plants • Life cycle overview • Vascular plant synapomorphies – Sporophyte Dominant life cycle • example: Fern Life Cycle – Vascular Tissue • xylem • phloem • Early clades of vascular plants – Rhyniophytes – Lycophytes (club mosses, etc) – Pteridophytes (Ferns and relatives) How to go from moss to trees? Lecture 2/4 (1): Vascular Plants...
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This document was uploaded on 04/02/2009.

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Plant Lecture 3 09 - Lecture 2/4 (1): Vascular Plants I •...

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