As was done in the preceding volume p. 592-599 it seemed useful to correct some errors which have crept into the text of volumes 4 and 5 as well as to add some additional data, new records, and new species or other taxa which came to our knowledge and are worth recording. Though we strive to make this a work of precision I have given up all hope that I will ever succeed in editing a volume in which no corrections in references and authority of taxa will appear to be necessary. This may be possible in a century from now when the entries in Index Kewensis are completed, when all books have nicely been extracted, and their dates of publication have been fixed once and for all by zealous librarians.