This red epi has both flat and triangular growth. It is an older variety. The friends I got it from said that their great-uncle had grown it for years. The blossom is 6"-8" long and about 3" in diameter. It is probably an Ackermannii hybrid.

This pink epi came from a local greenhouse, but the owner didn't know the name of it. The growth is flat and the blossom is about 3" long and 2 1/2" in diameter. It is probably Deustche Kaserin.

Mother Dear won our in-house 2002 Christmas Cactus First Bloom contest with this 3 3/4" beauty:

Stem Differences between old and new hybrids of Christmas Cactus and Easter Cactus

This is a stem segment from an at least 75 year old Christmas cactus, also known as a Schlumbergia. Note that it has rounded edges.
	This is the stem segment of a newer hybrid, the edges are much pointier.
This stem segment is from an Easter Cactus, also known as a Rhipsalidopsis. The edges are much rounder and mine have a red tinge to them.
	This is the bloom of an Easter Cactus, note the difference in the shape from Mother Dear's Christmas cactus above.

Here are some more of my epi pictures:

American Sweetheart:	Orange Bowl:
Alice Emmons:	King's Ransom:
Doris Pittman:	Pinkie: