Book excerpt: This is an annotated list of about 7500 names of plants (mostly Latin binomials) that have been generated during the last 200 years as a result of the activities of an official Spanish expedition (devoted to natural history) that began its work in Mexico in 1787 and closed out its work in the New World in 1803. The relevant names, whether officially published or existing only as manuscript names, are those that usefully can be documented to some degree, in order that a researcher may hope to identify the plant to which a name applies. Identification of the plants may be possible if their original geographic source is known, if an associated carefully drawn description, detailed illustration or a preserved specimen is available, or from a combination of the above.