IS THIS RED ROMAINE LETTUCE?

Came from Mesclun mix seed pack bought at Central Market (same place where the Arugula came from I think I will buy more seeds at Central Market seems to be a nice way to get inexpensive gourmet foods growing). Red Romaine was not listed on the seed pack but the only photos I can find that look like these plants are identified as Red Romaine, which is rare according to the sites I was reviewing.
Last week of Feb. 2009