by by Harrie J. Sipman, John A. Elix, and Thomas H. Nash III
A total of 140 species of Hypotrachyna (Parmeliaceae, Lichenized Fungi) are recognized from the Neotropics. This is well over 50% of the species know worldwide in this primarily tropical genus and includes 85 species thus far known only from the Neotropics. Keys are provided; synonymy, descriptions, secondary chemistry, distribution maps, habitats, and a selection of herbarium voucher specimens are given for each species.
Hardcover 176 pages, illustrations throughout, 10'' x 7'' The New York Botanical Garden Press 2009 ISBN 0893275026