Estrella Mountain Community College
Maricopa Community College: Nonvascular Plants and Nonseed Vascular Plants
Very detailed outline describing several aspects of plant diversity, including vascular vs. nonvascular, evolutionary adaptations, homosporous and heterosporous life cycles, and specific information on some ancient species (Lycophytes,...
Ohio State University
General Plant Biology: Seedless Vascular Plants
Use this very concise summary except to become familiar with these examples of less complex plants. Some of the terminology is at a more advanced level.