producing parallel and comparable descriptions. All measurements given in the descriptions for 
vegetative and fruit characters were obtained directly from dried material; flowers were 
rehydrated for the study, and measurements for their structures come from this "fresh" condition. 
Description format for the new species (which includes Latin diagnoses) is different from that of 
already published and accepted species, because it follows Novon's journal directions to facilitate 
their recovery for publication. Species' descriptions furnished the base for the construction of a 
dichotomous key for all the accepted taxa. 
A database in Microsoft Access was made for collector's name and number, locality, 
habitat, collection date, herbarium, and other standard information, from exsiccatae as a way to 
organize and retrieve information to add at the end of species descriptions. Distribution maps of 
species were made using this database. 
To complement morphological information, I also made a general survey of the leaf 
anatomy in most of the studied species. This work was centered on the analysis of tissue system 
distribution in the mesophyll. Cross sections of leaves from fixed (in FAA) and rehydrated 
material (overnight in a weak solution of commercial detergent, washed, and then for 10 hina 
5% ammonium hydroxide solution at 60°C) were made by hand and surveyed under light 
microscope to record characters and their variation among species. Leaf sections including 
midvein area at the level of domatia, intercostal area, and leaf margin were made and mounted in 
a solution of calcium chloride. 
II. Phylogenetic analysis. Conclusions from the morphological studies regarding the 
Cinnamomum genus concept, as well as the inclusion of species in this genus, were tested by a 
cladistic analysis of the genera contained in the Lauraceae, and a cladistic analysis of the 
11 
