Here are several references that I mentioned during the course of the course:

Simpson — Plant Systematics. Elsevier Press

Judd, et al. — Plant Systematics. A Phylogenetic Approach. Sinauer Press

Castner — Photographic Atlas of Botany and Guide to Plant Identification. Feline Press

Borror — Dictionary of Word Roots and Combining Forms. Mayfield Publishing Co.

Kozloff and Beidleman — Plants of the San Francisco Bay Region. Sagen Press

I also mentioned to several of you the UC Santa Cruz Arboretum as a place to see a great collection of Southern Hemisphere plants. They sell some of them, too! Visit their web site by clicking the name above.

You may also wish to visit the web site for my Plant Taxonomy Course for some more resources.