BIO 202 Lecture Notes - Lecture 4: Cytokinesis, Sporophyte, Marchantiales
Document Summary
A great leap plants moved from water onto land. No fossil evidence, so the group was reconstructed molecularly. Some bryophytes are more closely related to non-bryophytes than each other. Unilateral flagellar roots (these were the characters we used to determine that charophyceae was the out group of land plants) We are going to recognize land plant groups at the class level, not phylum. They use hepatophyta (old name) instead of marchantiopsida. The name was changed because the old one wasn"t (cid:498)typified(cid:499), meaning it wasn"t based on the names found in its lower taxonomic levels. ie marchantiales (order), marchantiaceae (family) and marchantia (genus). They are composed of the gametes, and a jacket of sterile cells that surround the gametes. Just like the green algae class charophyceae. The tree garbary made based on sperm structure. It is now confirmed as the correct tree.
