BISC 100 Lecture Notes - Lecture 11: Green Algae, Lycopodiopsida, Vascular Tissue
8 Mar 2020
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Bisc 100 plants fungi and humans part 1. Plants evolved from green algae: green algae called charophytes are the closest relatives of plants. The origin and diversification of plants: the appearance of plant spores in the fossil record indicates that plants colonized land at least. Origins and traits of vascular plants: early vascular plants had independent, branching sporophytes, living vascular plants are characterized by, life cycles with dominant sporophytes, vascular tissues called xylem and phloem, well-developed roots and leaves, spore-bearing leaves called sporophylls. Evolution of roots: roots are organs that anchor vascular plants, they enable vascular plants to absorb water and nutrients from the soil, roots may have evolved from subterranean stems. The significance of seedless vascular plants: the ancestors of modern lycophytes, horsetails, and ferns grew tall during the devonian and. Carboniferous, forming the first forests: the decaying plants of these carboniferous forests formed coal over millions of years.
