I've been growing Batavia Lettuce for a number of years. These varieties are Nevada (green) and Tiede (red). Tiede has a fine texture similar to most loose leaf lettuce. However the Nevada is very similar to head lettuce. I've also grown Sierra and it is just like Nevada but has some red color. Both varieties do very well in our hot humid Midwest summers.
This is my third planting of Batavia Lettuce of the season and I'm going to plant a fourth planting today.