This research was supported by a post-doctoral fellowship in bryology
at the Missouri Botanical Garden. I am grateful to Manuel Mahu
who collected the majority of the specimens used by this study.
Special thanks are extended to Bruce Allen who has helped solve
numerous difficult identifications and made valuable comments.
Ronald Pursell is thanked for identifying Fissidens specimens
and for his careful review of the manuscript. Zen Iwatsuki is
appreciated for his comments and support in publishing this paper.
Marshall Crosby was helpful with numerous nomenclatural difficulties
and other helpful suggestions. Finally, I want to thank Robert
Magill for his encouragement and support in providing me the opportunity
to complete this study.