Ken, there are 2 main types of begonias. Flowering begonias, which can have single or multilayered flowers, and foliage begonias, which are grown for their leaves. I grow foliage begonias, most are descendants from Begonia rex. Begonias are pretty interesting as they can grow from their leaves. Just take an old leaf and stick it into a pot of soil, and pretty soon you'll get a new plant (just like African violets). Oh, either you mean the staghorn fern (Platycerium, which is an epiphyte) or the fishtail fern (genus Microsorium, which has leaves that grow upward)..