New and Interesting Mexican Orchids

of Erik Oestlund and if possible to secure it as an addition to the Ames Herbarium at Harvard University. The Oestlund heirs gave the collection to the Ames Herbarium and it was forwarded to Cambridge. The collection was carefully studied and has now been incorporated with the Ames Herbarium. The Oestlund collections were made principally by Otto Nagel, Juan Gonzalez and Mr. Oestlund, with the occasional help of others. The herbarium is by far the largest single collection of orchids ever made in Mexico, consisting of about four thousand numbers, many of them in duplicate. The serial numbers run from 500 to 8037. A large portion of the numbers in the series, however, are not represented by specimens. Papers describing novelties from the Oestlund herbarium have appeared occasionally in this journal as the study and naming of the collection progressed. This paper describes the last of such novelties, as well as some others that were discovered in other collections during the time that the Oestlund collection was being studied. A complete set of the Oestlund specimens, as well as the types of all of the novelties described from it, is to