Lisa,

First, look in the pot for a tag of some sort. That may tell you what
genera you have purchased. If not stuck in the pot, look at the pot itself
for a sticker (bar code type) that might tell you. You may see something
like Phalaenopsis, Dendrobium, Oncidium, or some other name, possibly
abbreviated.

Failing that, describe to us the way the plant looks. Does it have tall
canes? Does it seem to grow dark green leaves from the center of the plant?
Are the leaves substantial, or are they more grassy-textured?

More info, and everyone here is glad to help. Meanwhile, water once a week
and talk to it!

Diana