BIOL 1030 Lecture Notes - Lecture 22: Lycopodiopsida, Equisetum Arvense, Oogamy

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1030
• Professor: Carla Zelmer

Document Summary

Lecture 22 intro to land plants: bryophytes. Small plants that are generally restricted to marshy and seasonally wet environments, must have relation to water in some way ex) liver warts, moss. Thaloyid liver wart: vascular plants (tracheophyte) (water cells of the vascular plants) one phase of the life cycle has vascular tissues (xylem, phloem) trachea (from tracheids- water conducting cell type) phyte = plant ex) ferns, seed plants. Origin of land plants aprox 450 years ago from aquatic green algae, fossil records exist. Common features: algae and land plants: cellulose cell walls, startch, photosynthetic pigments, chloro. A: chloro b, cartoenoids, molecular systematics compares dna- shows genetically related ex) same genes coding pigments. Charophytes (at the base of the non vascular plants) aquatic green algae, ancestral. Lycophytes: club mosses, tree like in structure quillworts. Angiosperms most evolutionarily advanced plant group (more recent) Three main traits of land plants: haplodiplonitc life cycle (alternation of generations, oogamy, apical meristems.