Outline Lecture 5: Seedless Vascular Plants (Club mosses, Horsetails, and Ferns).
Readings: Chapter 29 in Moore et al.
A. Evolutionary relationships of Seedless Vascular Plants to Bryophytes and Higher Plants.
1. General characteristics and phylogeny of the group.
B. The Adaptive Problem of Colonizing Dry Land.
1. Evolution of the vascular system: protostele to eustele.
a. Example from extinct arborescent club moss.
1. Need 3 reasons to worry, or 2 not to.
a. Sporophyte now the dominant phase.
2. The horsetail life cycle.