Regarding the name of the orchid and your tag: The name is
Oncidium ampliatum. Onc ampliatum is a species orchid which means it can be found in the wild. Notice that I spelled it with the lower case A. The specific epithet or the second name (in this case ampliatum) is not capitalized.
The first part of your tag "19437" is probably a nursery inventory code number or breeder's flask number and is only a way for the breeder or nursery to keep track of its plants.
The second part of the tag which reads, "ONC. AMPILATUM X SIBLING" indicates a few things: 1) that your plant is seed grown and not a clone, and 2) that it was made by breeding 2 different ampliatums which came from the same parents (and thus the same seed pod). If you breed an Onc ampliatum with another Onc ampliatum the offspring are all also Onc ampliatum. Sometimes the ampliatums that are bred are form completely different groups of ampliatums, sometimes they are from the same group (called a sibling cross) and sometimes a single plant is self-polinates or bred with itself (called a selfing).
The date on the tag "8/11/06" probably means the plants were flasked or perhaps deflasked on August 11 2006.
Visit
AOS | Home and get an Oncidium culture sheet. This will contain a lot of informaton on how to grow your Oncidiium. Take note that this particular species can get very large.
